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Relief Valves, Poppet-Type

RV58-20 Relief, Direct-Acting Poppet, High Pressure (RV58-20)

<div>
<h3>Product Operation</h3>
The RV58-20 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the spring-opposed poppet from its seat. 
Note: The RV58-20 may not be used in cross-over relief applications (back pressure on 2).
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Adjustments prohibit springs from going solid. 
• Rapid response to pressure changes. 
• Compact size.
</div>
<div>
<h3>Product Ratings</h3>
Operating Pressure: 345 bar (5000 psi) 
Flow: See Performance Chart 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 75% of nominal setting 
Crack Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Reseat Pressure: Nominal 80% of crack pressure 
Standard Spring Range: 55.2 to 317.2 bar (800 to 4600 psi) 
Operating Temperature: &#8211;54 to 107°C with standard Polyurethane seals 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC08-2; See page <a title="9.108.1" href="https://www.savery.co.uk/products/view/9-108-1">9.108.1</a> 
Cavity Tool: CT08-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK58-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>
</div>

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A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended for lower flow circuits requiring low internal leakage at higher pressures.

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Bespoke Projects

<ul class="ul1">
<li class="li1">Bespoke lubrication systems for testing Aerospace propulsion using high temperature fluids and test article scavenge capability</li>
<li class="li1">Bespoke lubrication solution for testing Automotive EV components.</li>
<li class="li1">Bespoke assembly rigs for Aircraft landing gear with built in test facilities.</li>
<li class="li1">Bespoke pressure testing and flushing rigs for Aircraft assembly plants.</li>
<li class="li1">Purpose design test benches for fluid power components.</li>
<li class="li1">Ground support trolleys for production and field use for Aircraft testing.</li>
<li class="li1">Hydraulic ring mains for aircraft production and servicing.</li>
<li class="li1">Hydraulic Infrastructure for test houses.</li>
</ul>

Bespoke-Projects

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Savery Hydraulics have a highly experienced team for fluid control for hydraulic, electronic control, installation and project management. Using this experience we have supported customers with a wide range of projects which are not traditionally considered hydraulic equipment. Some examples of bespoke projects we have successfully delivered are:-

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Hydraforce

Hydraforce products meet global quality standards including ISO 9001, QS 9000 and CE. Every Hydraforce valve, coil, solenoid, manifold and electro-hydraulic control goes through rigorous testing and inspection to perform beyond industry standards.

Savery offers one of the most comprehensive lines of hydraulic valves, solenoids and coils and is the UK distributor for the Hydraforce range of products for the mobile and industrial equipment markets, including high performance valves for flow rates of 0.4 to 530lpm and pressure up to 420 bar.

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Hydraulic Control Systems  

Tailored Solutions for Precision Control 
Our in-house hardware and software design team is dedicated to delivering cost-effective and reliable solutions for a wide array of control system needs. From embedded microcontroller systems to large-scale machine controls, we excel in designing and developing systems that meet the most demanding specifications. 
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Cloud-Based Monitoring for Seamless Access 
We offer cloud-based system monitoring solutions that provide 24/7 access through smart phone or tablet apps, giving you real-time insights into your operations from anywhere. 
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Industry-Leading Expertise 
With extensive experience across various industries, including aerospace, automotive, wind turbine testing, marine, and industrial sectors, our engineers bring invaluable expertise to every project. 
 
Hardware and Software Capabilities 
Small-Scale Control Systems: We design cost-effective control systems in-house using bespoke electronic control boards giving you optimal performance for your specific needs. 
Microchip Programming: We specialise in programming microchips for specialist applications in fluid power, providing tailored solutions for precise control. 
Large-Scale Machine Control Systems: Our capabilities include designing dedicated Motor Control Centre (MCC) cabinets and implementing System Control and Data Acquisition (SCADA) plant monitoring for seamless operation of complex machinery. 
Software Authoring: We are proficient in various software platforms, including: 
<ul>
<li>Delta Motion Controllers </li>
<li>National Instruments LabView© </li>
<li>National Instruments LabWindows CVI© </li>
<li>PLCs: Allen Bradley, Siemens, Omron, Schneider, Bachmann, Koyo </li>
<li>HMI and SCADA Systems: Siemens, Schneider, Bachmann, Koyo </li>
</ul>
 
Cost-Effective Solutions, Tailored to Your Needs 
Our deep understanding of different control systems enables us to select the most cost-effective platform to suit your systems development, ensuring you get the best value for your investment. 
At Savery, we are committed to delivering innovative, reliable, and tailored solutions that optimise the performance of your hydraulic systems, empowering you to achieve your goals with precision and efficiency.  
Get in touch with us today to discuss your project needs.

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At Savery, we design and manufacture electronic systems that ensure the safe and efficient control and monitoring of hydraulic equipment. Our expertise lies in providing comprehensive control system solutions tailored to your specific requirements, with a focus on bespoke applications. 

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Hydraulic Control Systems

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Hydraulic Power Unit

Our power units vary from compact, fixed pump systems to intricate setups featuring multiple variable displacement pumps and energy-saving variable speed drive technology. These units can be equipped with control manifolds for basic relief unloading functions or complex hydraulic control circuitry, custom-made for your application. 
We offer bespoke electrical control equipment that can manually or automatically control the power source, adhering to all current safety standards. This can be paired with simple condition monitoring for parameters such as flow, pressure, level, temperature, and fluid condition, or with advanced SCADA data recording for remote access via the cloud. This ensures safe and reliable 24/7 operation of equipment. 
Our power units can include fluid reservoirs ranging from 10 litres to over 14,000 litres, with built-in bund containment to meet regulatory requirements. 
With Savery, you’re in safe hands. We work with you from conception through design, project planning, installation, commissioning, and servicing to deliver a cost-effective and efficient hydraulic and control solution. 
We have successfully completed projects in various industries, including: 
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="1" data-aria-level="1">Civil: Flood Barriers, Roll-on/Roll-off dock equipment </li>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="2" data-aria-level="1">Marine: Ship Stabiliser, steering and deck equipment (with in-house 60 Hz testing capability) </li>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="3" data-aria-level="1">Testing Infrastructure: Automotive, Aerospace, research and production component testing </li>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="4" data-aria-level="1">Mechanical Handling: Large Scissor lifts </li>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="5" data-aria-level="1">Defence and Security: Specialist equipment </li>
<li data-leveltext="" data-font="Symbol" data-listid="2" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="6" data-aria-level="1">Wind: Turbine Blade testing </li>
</ul>
Trust Savery Hydraulics for your hydraulic power needs.

Hydraulic-Power-Unit

At Savery Hydraulics, we specialise in the design and manufacture of hydraulic power units tailored to customer specifications. Our offerings range from single fractional power motors to multiple pump sets, with power installations up to 2 Mw. 

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Savery custom manifolds can be designed as part of a new power unit or to enhance your existing equipment & machinery. Custom designed manifolds offer no-leak, screw-in components with fast and easy valve removal and replacement. 

ManifoldAssembly

Our team of experienced engineers can simplify the most complex hydraulic circuits to reduce cost, improve reliability, minimise pipe work connections and the physical size &amp; weight of the solutions.
Custom manifold assemblies are: 
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="1" data-aria-level="1">Designed by our engineers in house using the latest 3D CAD software for integration into your product. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="2" data-aria-level="1">Designed utilising Hydraforce cartridge valves and a vast range of other manufacturer’s components to achieve the required performance. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="3" data-aria-level="1">Machined using modern CNC equipment with specialist tooling to ensure high quality. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="4" data-aria-level="1">Manufactured from aluminium, steel or stainless steel to meet system pressure, flow and application requirements. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="5" data-aria-level="1">Designed in conjunction with your engineers to ensure we meet your unique requirements and installation needs. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="6" data-aria-level="1">Supplied in a variety of sizes from small manifold blocks with cartridges capable of controlling low(a few litres per minute) flow rate up to large complex assemblies for hundreds of litres per minute. </li>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}" aria-setsize="-1" data-aria-posinset="7" data-aria-level="1">Supplied fully assembled &amp; tested in our UK facility &amp; meeting the necessary ISO recommended guidelines for hydraulic cleanliness prior to dispatch. </li>
</ul>

Manifold-Assembly

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Savery custom manifolds can be designed as part of a new power unit or to enhance your existing equipment & machinery. Custom designed manifolds offer no-leak, screw-in components with fast and easy valve removal and replacement.

Manifold Assembly

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Contact Us

Savery hydraulic power packs and mini power packs are the culmination of many years of experience in manufacturing AC and DC power packs.

Small HydraulicPower Packs

The PB300 series of power units offer the latest design and features not normally associated with this type of unit. The units have a pressure of 300 bar, which is achieved by the use of high specification materials. The centre adaptor where the unit is cased, is made using an advanced aluminium manifold die-casting process, eliminating porosity to give a lightweight assembly.
Applications for this type of unit are numerous DC units for battery powered use include our tail lift packs and can be found on tippers, aerial access equipment and material handling trucks. AC units with power ratings from 0.25kW to 5.5kW have an even greater range of applications including the retail and service industry for the handling of goods &#8211; loading and unloading of vehicles and the lift industry for lifts installed in the home, disabled lifts and automotive assembly plants.
Savery has developed hydraulic power packs specifically for applications such as dock levellers, which provide a bridge between the loading bay and the truck being loaded or unloaded.
PB300 units have;
<ul>
<li>DC units 12V &amp; 24V / 0.2 – 3.5kW.</li>
<li>AC units 3 Phase &amp; 1 Phase / 0.25 – 5.5kW.</li>
<li>A vast range of control options for single and double acting circuits.</li>
<li>Advanced pressure die-cast aluminium centre adaptor.</li>
<li>The ability to eliminate porosity.</li>
</ul>
<img loading="lazy" decoding="async" class="alignnone size-full wp-image-5274" src="https://cms.savery.co.uk/wp-content/uploads/2024/03/E11-Logo.jpg" alt="" width="110" height="48" />

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Savery offer a complete and comprehensive range of hydraulic power units, incorporating highly flexible, cost effective modular construction suited to both OEM and small users. The design of units for special applications is an important part of Savery’s marketing activities and our engineers can develop a unit to perfectly match our customer’s requirements.

Savery hydraulic power packs and mini power packs are the culmination of many years of experience in manufacturing AC and DC power packs.


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Small Hydraulic Power Packs

RVD50-20P Relief, Poppet-Type, High Pressure (RVD50-20P)

<div>
<h3>Product Operation</h3>
The RVD50-20P blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the poppet from its seat. The cartridge offers fast response to load changes in typical hydraulic circuits requiring low hysteresis, low pressure rise and low internal leakage.
</div>
<div>
<h3>Product Features</h3>
• PED-Certified to European Commission Pressure Equipment Directive 97/23/EC. 
• Suitable for use as a safety accessory in PED Category IV Group 2 applications. 
• Salt spray protection to meet 1000 hour specifications. 
• Hardened poppet and cage for long life. 
• No maintenance required (or allowed). 
• Rapid response to pressure surges. 
• Industry common cavity. 
• Spring ranges from 13.7 bar (200 psi) to 350 bar (5075 psi). 
• Poppet developed using computational fluid dynamics to ensure dynamic response with minimal friction.
</div>
<div>
<h3>Product Ratings</h3>
Maximum Operating Pressure: 385 bar (5575 psi) 
Proof Pressure: 517.1 bar (7500 psi) 
Burst Pressure: 1379 bar (20000 psi) 
Flow: The Performance Chart illustrates flow handling capacity at maximum setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces. Consult factory for specific flow characteristic values. 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 80% of nominal setting 
Crack (Set) Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Reseat Pressure: Nominal 85% of crack pressure 
Standard Spring Ranges: Available from 13.7 bar (200 psi) to 350 bar (5075 psi). See To Order section. Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown. 
Operating Temperature: -40°C to 100°C (-40°F to 212°F) with Buna N seals; -26°C to 204°C (-31°F to 400°F) with Fluorocarbon seals; -40°C to 107°C (-40°F to 225°F) with Polyurethane seals. 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: Valve must be installed so that pressure is at port 1. Improper porting will result in loss of safety function of valve. Pressure at port 2 must be at 0 bar (0 psi) for valve to open at the marked pressure setting. Pressure at port 2 is additive to the pressure setting. For additional installation instructions;See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>.
</div>

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A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic safety relief valve intended for use as a pressure limiting device for common hydraulic circuit protection. The RVD50-20P is suitable for use as a safety accessory in Category IV Group 2 applications according to the European Commission (EC) Pressure Equipment Directive (PED) 97/23/EC.

RVD50-20 Relief, Poppet-Type, High Pressure (RVD50-20)

<div class="product-info group">
<div>
<h3>Product Operation</h3>
The RVD50-20 blocks flow from ➀ to ➁ until suffi cient pressure is present at ➀ to force the poppet from its seat. 
The cartridge offers fast response to load changes in typical hydraulic circuits 
requiring low hysteresis, low pressure rise and low internal leakage. 
For cross-over applications, maximum recommended flow is 37.9 lpm (10 gpm) 
and maximum pressure is 207 bar (3000 psi). See Ordering Table.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Height of the adjuster does not change when the pressure setting is adjusted. 
• Adjustment options A, B, and C: positive stops prevent springs from going solid. 
• Hardened poppet and cage for long life. 
• Optional spring ranges to 345 bar (5000 psi). 
• Rapid response to pressure surges. 
• Industry common cavity.
</div>
<div>
<h3>Product Ratings</h3>
Maximum Operating Pressure: 350 bar (5075 psi) 
Flow: The Performance Chart illustrates flow handling capacity at maximum setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces. Consult factory for specifi c flow characteristic values. 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 80% of nominal setting 
Crack (Set) Pressure Defi ned: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Reseat Pressure: Nominal 85% of crack pressure 
Standard Spring Ranges: Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below. Model Code 
08: 13.7 bar to 58.6 bar (200 psi to 850 psi) Model Code 
15: 41.4 bar to 103. 4 bar (600 psi to 1500 psi) Model Code 
24: 96.5 bar to 165.5 bar (1400 psi to 2400 psi) Model Code 
32: 137.9 bar to 220.6 bar (2000 psi to 3200 psi) Model Code 
42: 206.8 bar to 289.6 bar (3000 psi to 4200 psi) Model Code 
50: 275.8 bar to 344.7 bar (4000 psi to 5000 psi) 
Storage Temperature: -40°C to 120°C with standard Buna N seals-35°C to 204°C with Fluorocarbon seals-54°C to 107°C with Polyurethane seals 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>; SK10-2X-M for cross-over relief application – max. pressure 207 bar (3000 psi)
</div>
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<div class="product-related"> </div>

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A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended for use as a pressure limiting device for common hydraulic circuit protection.

RVCV56-20 Relief, Direct Acting, Anti-Cavitation (RVCV56-20)

<div>
<h3>Product Operation</h3>
The RVCV56-20 blocks flow from 1 to 2 until sufficient pressure is present at 1 to displace the poppet off its seat. Relief flow discharges to port 2. Reverse flow occurs from 2 to 1 when differential pressure between 2 and 1 exceeds the check spring value.
</div>
<div>
<h3>Product Features</h3>
• Maximum pressure 420.6 bar (6100 psi) at port 1. 
• Adjustments cannot be backed out of the valve. 
• Adjustments prohibit springs from going solid. 
• Hardened spool and cage for long life. 
• Fast, smooth response to pressure surges.
</div>
<div>
<h3>Product Ratings</h3>
Pressure Rating: 420 bar (6100 psi) at port 1; 70 bar (1000 psi) at port 2 
Proof Pressure: 480 bar (7000 psi) 
Burst Pressure: 965 bar (14,000 psi) 
Flow Rating: Port 1 to 2: 115 lpm (30 gpm); Port 2 to 1: 175 lpm (46 gpm) 
Overshoot: Less than 20% of setting 
Adjustable Pressure Range, Port 1 to 2: 140 bar (2000 psi) minimum;420 bar (6100 psi) maximum 
Crack Pressure Defined: 0.95 lpm (0.25 gpm) 
Maximum Reseat Pressure, Port 1 to 2: 85% of crack pressure 
Leakage at Port 2: 10 drops/minute (0.53 ml/minute) at 103.4 bar (1500 psi) max. 
Anti-Cavitation Crack Pressure, Port 1 to 2: 0.34 ± 0.07 bar (5 ± 1.0 psi) 
Temperature: with Buna N seals: -40°C to 100°C (-40°F to 212°F);with Fluorocarbon seals: -26°C to 204°C (-15°F to 400°F);with Polyurethane seals: -54°C to 107°C (-65°F to 225°F) 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC16-2; See page <a title="9.116.1" href="https://www.savery.co.uk/products/view/9-116-1">9.116.1</a> 
Cavity Tool: CT16-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK16-2x-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a> 
ISO SYMBOL 
PERFORMANCE 
<a title="6.022.1" href="https://www.savery.co.uk/products/view/6-022-1">6.022.1</a> 
HYDRAFORCE.com®
213455000414600027640002073000138200069100018.9575.62056.71537.81094.525FLOW lpm/gpmPRESSURE DIFFERENTIAL bar/psi 
Relief Valve ModeMax. Pressure Drop; Cartridge and Body32 cSt/150 sus oil at 40°C113.430Max. SettingMin. SettingPress. Dropat Max. Opening10.31508.61256.91005.2751.7253.45038101133076201895015140FLOW lpm/gpmPRESSURE DIFFERENTIAL bar/psi 
Check Valve ModeMax. Pressure Drop; Cartridge and Body32 cSt/150 sus oil at 40°C2276026570
</div>

6-022-1-symbols-1

6-022-1-image-dimensions

6-022-1-symbols-graphs-image

6-022-1-main-image

A screw-in, cartridge-style, direct-acting, poppet-type hydraulic relief valve with a built-in reverse-flow anti-cavitation check valve. It is intended for use as a pressure limiting and regulating device in demanding, high-pressure hydraulic circuits which require fast response, low hysteresis, low leakage, low pressure override, and reverse free-flow features.

RV50-28 Relief, Pilot-Operated w/Reverse Check (RV50-28)

<div>
<h3>Product Operation</h3>
The RV50-28 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the pilot stage open, allowing the main stage to shift, opening 1 to 2. 
The relief flow path is from 1 to 2. Reverse flow, from 2 to 1, occurs when the pressure at 2 is at least 2.1 bar (30 psi) higher than at port 1.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Hardened spool and cage for long life. 
• Fast response. 
• Industry common cavity.
</div>
<div>
<h3>Product Ratings</h3>
Operating Pressure Range: 344 bar (5000 psi) 
Proof Pressure: 621 bar (9000 psi) 
Burst Pressure: 241 bar (8000 psi) 
Flow: 113.6 lpm (30 gpm) rom port 1 to port 2 
Adjustable Pressure Range: 17 bar (250 psi) to 345 bar (5000 psi) 
Internal Leakage: 0.5 ml/minute (10 drops/minute) max. to 80% of nominal setting 
Crack Pressure Defined: bar (psi) evident at 7.6 lpm (2.0 gpm) attained 
Reseat Pressure: Nominal 90% of crack pressure 
Check Valve Mode Crack Pressure: 2.1 bar (30 psi) 
Approximate Pressure Increment per Adjuster Turn: 99 bar (430 psi)/turn 
Response Time: Relief Valve to Check Valve at 24 bar/53 lpm (3500 psi/14 gpm) condition: 0.6 seconds 
Response Time: Check Valve to Relief Valve at 24 bar/53 lpm (3500 psi/14 gpm) condition: 0.3 seconds 
Operating Temperature: with polyurethane seals: -54 to 107°C (-65 to 225°F) 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>
</div>

6-173-1-symbols

6-173-1-image-dimensions

6-173-1-symbols-graphs-image

6-173-1-main-image

A screw-in, cartridge-style, pilot-operated, two-stage, hydraulic relief valve with reverse flow check valve. It is intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response, low hysteresis, low leak-age, low pressure overshoot and reverse free flow features.



RV50-22 Relief, Differential Area Poppet (RV50-22)

<div>
<h3>Product Operation</h3>
The RV50-22 blocks flow from ➁ to ➀ until suffi cient pressure is present at ➁ to force the poppet from its seat. 
The cartridge offers smooth transition in response to load changes in common 
hydraulic circuits. 
Note: The RV50-22 may not be used in cross-over relief applications (back pressure 
on ➀).
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Adjustments prohibit springs from going solid. 
• Hardened poppet and cage for long life. 
• Smooth response to pressure surges. 
• Industry common cavity.
</div>
<div>
<h3>Product Ratings</h3>
Operating Pressure: 345 bar (5000 psi) 
Flow: The Performance Chart illustrates flow handling capacity at maximum setting. Pressure rise will vary with setting due to flow forces. Consult factory for specifi c flow characteristic values. 
Pressure Rise: 0.34 bar/l (5 psi/g) 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 85% of nominal setting 
Crack (Set) Pressure Defi ned: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Standard Spring Range: 34.5 to 344.8 bar (500 to 5000 psi) at 80% accuracy 
Temperature: -40 to 120°C 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2P-T; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>
</div>

6-055-1-symbols

6-055-1-image-dimensions

6-055-1-main-image

6-055-1-symbols-graphs-image

A screw-in, cartridge-style, direct-acting, differential area, poppet-type hydraulic relief valve for use as a pressure limiting device in more demanding hydraulic circuits requiring low hysteresis and low internal leakage at high working pressures.

RV10-28 Relief, Pilot-Operated w/Reverse Check (RV10-28)

<div>
<h3>Product Operation</h3>
The RV10-28 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the pilot stage open, allowing the main stage to shift, opening 1 to 2. 
The relief flow path is from 1 to 2. Reverse flow, from 2 to 1, occurs when the pressure at 2 is at least 2.1 bar (30 psi) higher than at port 1.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Hardened spool and cage for long life. 
• Fast response. 
• Industry common cavity. 
RATINGS: Relief Valve Mode 
Pressure Rating: 289.6 bar (4200 psi) 
Proof Pressure: 620.5 bar (9000 psi) 
Burst Pressure: 1241.1 bar (18000 psi) 
Flow Rating: Port 1 to 2: 113.6 lpm (30 gpm) 
Internal Leakage: 0.53 ml/minute (10 drops/minute) max. to 80% of nominal setting 
Crack Pressure Defined: bar (psi) evident at 7.6 lpm (2.0 gpm) attained 
Reseat Pressure: Nominal 90% of crack pressure 
Approximate Pressure Increment Per Adjuster Turn: 98.6 bar (1430 psi) 
Response Time: Relief to Check switch at 241 bar/53 lpm (3500 psi/14 gpm) condition: 0.6 seconds 
RATINGS: Check Valve Mode 
Crack Pressure: 2.1 bar (30 psi) 
Response Time: Check to Relief switch at 241 bar/53 lpm (3500 psi/14 gpm) condition: 0.3 seconds 
RATINGS: Overall 
Operating Temperature: with Buna N seals: -40 to 100°C (-40 to 212°F); with Viton seals: -26 to 204°C (-15 to 400°F); with Polyurethane seals: -54 to 107°C (-65 to 225°F) 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>
</div>

6-170-1-symbols

6-170-1-image-dimensions

6-170-1-symbols-graphs-image

6-170-1-main-image

A screw-in, cartridge-style, pilot-operated, two-stage, hydraulic relief valve with reverse flow check valve. It is intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response, low hysteresis, low leak-age, low pressure overshoot and reverse free flow features.


RV10-23 Relief, Pilot-Operated (RV10-23)

<div>
<h3>Product Operation</h3>
The RV10-23 blocks flow from ➀ to ➁ until suffi cient pressure is present at ➀ to force the pilot stage open, allowing the main stage to shift, opening ➀ to ➁Note: The RV10-23 may be used in cross-over relief applications, however, it is not 
recommended for use as in parallel cross-over relief or anti-cavitation applications. 
Consult factory for proper flow path connections.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Hardened spool and cage for long life. 
• Fast response. 
• Industry common cavity. 
RATINGS: 
Operating Pressure Range: 20.7 to 240 bar (300 to 3500 psi) 
Flow: 7.6 to 113.6 lpm (2 to 30 gpm) 
Internal Leakage: 0.5 ml/minute (10 drops/minute) max. to 80% of nominal setting 
Crack Pressure Defi ned: bar (psi) evident at 7.6 lpm (2.0 gpm) attained 
Reseat Pressure: Nominal 90% of crack pressure 
Pressure Rise: at 240 bar (3500 psi): 0.15 bar/lpm (8 psi/gpm) 
Operating Temperature: with Buna N seals: -54 to 135°C (-65 to 275°F) 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2, Variation “A”; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-M; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>
</div>

6-060-1-symbols

6-060-1-image-dimensions

6-060-1-symbols-graphs-image

6-060-1-main-image

A screw-in, cartridge-style, pilot-operated, two-stage, hydraulic relief valve intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response, low hysteresis, low leakage and low pressure overshoot.

RV10-22 Relief, Differential Area Poppet (RV10-22)

<div>
<h3>Product Operation</h3>
The RV10-22 blocks flow from ➁ to ➀ until suffi cient pressure is present at ➁ to force the poppet from its seat. 
The cartridge offers smooth transition in response to load changes in common 
hydraulic circuits. 
Note: The RV10-22 may be used in cross-over relief applications (back pressure 
on ➀) with the use of the “C” double back-up ring seal option. See Ordering Table.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Adjustment options A, B, and C: positive stops prevent springs from going solid. 
• Hardened poppet and cage for long life. 
• Optional spring ranges to 241 bar (3500 psi). 
• Smooth response to pressure surges. 
• Industry common cavity.
</div>
<div>
<h3>Product Ratings</h3>
Operating Pressure: 241 bar (3500 psi) 
Flow: The Performance Chart illustrates flow handling capacity at maximum setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces. Consult factory for specifi c flow characteristic values. 
Pressure Rise: 0.34 bar/l (5 psi/g) 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 85% of nominal setting 
Crack (Set) Pressure Defi ned: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Standard Spring Ranges: Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below. 
Temperature: -40 to 120°C 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-T; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>; SK10-2X-M (for cross-over relief application)
</div>

6-050-1-symbols

6-050-1-image-dimensions

6-050-1-symbols-graphs-image

6-050-1-main-image

A screw-in, cartridge-style, direct-acting, differential area poppet-type hydraulic relief valve for use as a pressure limiting device in more demanding hydraulic circuits, requiring low hysteresis and low internal leakage.

RV10-20 Relief, Direct-Acting Poppet (RV10-20)

<div class="product-info group">
<div>
<h3>Product Operation</h3>
The RV10-20 blocks flow from ➀ to ➁ until suffi cient pressure is present at ➀ to force the poppet from its seat. 
The cartridge offers fast response to load changes in typical hydraulic circuits 
requiring low internal leakage. 
NOTE: The RV10-20 may be used in cross-over relief applications (back pressure 
on ➁) with the use of the “C” double back-up ring seal option. See Ordering Table.
</div>
<div>
<h3>Product Features</h3>
• Adjustments cannot be backed out of the valve. 
• Adjustment options A, B, and C: positive stops prevent springs from going solid. 
• Hardened poppet and cage for long life. 
• Optional spring ranges to 228 bar (3300 psi). 
• Rapid response to pressure surges. 
• Industry common cavity.
</div>
<div>
<h3>Product Ratings</h3>
Operating Pressure: 228 bar (3300 psi) 
Flow: The Performance Chart illustrates flow handling capacity at maximum setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces. Consult factory for specifi c flow characteristic values. 
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 80% of nominal setting 
Crack (Set) Pressure Defi ned: bar (psi) evident at 0.95 lpm (0.25 gpm) attained 
Reseat Pressure: Nominal 85% of crack pressure 
Standard Spring Ranges: Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below. 
Temperature: -40 to 120°C 
Filtration: See page <a title="9.010.1" href="https://www.savery.co.uk/products/view/9-010-1">9.010.1</a> 
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page <a title="9.060.1" href="https://www.savery.co.uk/products/view/9-060-1">9.060.1</a> 
Installation: No restrictions; See page <a title="9.020.1" href="https://www.savery.co.uk/products/view/9-020-1">9.020.1</a> 
Cavity: VC10-2; See page <a title="9.110.1" href="https://www.savery.co.uk/products/view/9-110-1">9.110.1</a> 
Cavity Tool: CT10-2XX; See page <a title="8.600.1" href="https://www.savery.co.uk/products/view/8-600-1">8.600.1</a> 
Seal Kit: SK10-2X-B; See page <a title="8.650.1" href="https://www.savery.co.uk/products/view/8-650-1">8.650.1</a>; SK10-2X-M (for cross-over relief application)
</div>
</div>
<div class="product-related"> </div>

RV58-20 Relief, Direct-Acting Poppet, High Pressure (RV58-20)

Product Operation

Product Features

Product Ratings

RVD50-20P Relief, Poppet-Type, High Pressure (RVD50-20P)

RVD50-20 Relief, Poppet-Type, High Pressure (RVD50-20)

RVCV56-20 Relief, Direct Acting, Anti-Cavitation (RVCV56-20)

RV58-20 Relief, Direct-Acting Poppet, High Pressure (RV58-20)

RV50-28 Relief, Pilot-Operated w/Reverse Check (RV50-28)

RV50-22 Relief, Differential Area Poppet (RV50-22)

RV10-28 Relief, Pilot-Operated w/Reverse Check (RV10-28)

RV10-23 Relief, Pilot-Operated (RV10-23)

RV10-22 Relief, Differential Area Poppet (RV10-22)

RV10-20 Relief, Direct-Acting Poppet (RV10-20)

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