FR12-33 Flow Regulator, Pressure Compensated (FR12-33)
A screw-in, cartridge-style, adjustable orifice, pressure-compensted, manually-operated, bypass-type hydraulic flow regulating valve. It can be used as a priority-type flow regulator or a restrictive-type 2-way flow regulator when the bypass port is blocked.
Product Operation
The FR12-33 maintains a constant flow rate from ➂ regardless of load pressure changes in the system downstream of ➂, or in the bypass leg at ➁. Reverse flow (➂ to ➀) bypasses the control orifice.The regulated flow increases from closed to fully open, with counter-clockwise
rotation of the knob.
Note: When used as a bypass flow control in applications where the priority flow port
will be blocked by external valving, bypass pressure drop will increase unless a small
amount of leakage is provided for the priority port. Consult factory.
Product Features
• Bypass port ➁ may be fully pressurized.
• Hardened steel parts for long life.
• Quiet, modulated response.
• Industry common cavity.
Product Ratings
Operating Pressure: 240 bar (3500 psi)
Flow Rate: 3-ported regulated flow: 0 to 68 lpm (0 to 18 gpm) 2-ported regulated flow: 0 to 45 lpm (0 to 12 gpm)
Input Flow: 3-ported: 76 lpm (20 gpm) nominal; 114 lpm (30 gpm) max.
Internal Leakage: 0.12 lpm (7.3 cu. in./minute) at port 3, at 207 bar (3000 psi)
Adjustment Torque Required: 1.7 Nm (15 inch-pounds) at 207 bar (3000 psi)
Operating Temperature: –40 to 100°C with standard Buna N seals
–26 to 204°C with Fluorocarbon seals
–54 to 107°C with Polyurethane seals
Filtration: See page 9.010.1
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 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC12-3; See page 9.112.1
Cavity Tool: CT12-3XX; See page 8.600.1
Seal Kit: SK12-3X-MM; See page 8.650.1
Knob Kit: Part Number 6113160
3-Ported:Regulated Flow vs. Pressureat 76 lpm/20 gpm Input Flow32 cST/150 ssu oil at 40°C60/1676/2091/2445/1230/815/4FLOW lpm/gpmPREG > PBYPPBYP > PREG2764000276400013820000 bar0 psi13820001 TURN2 TURNS3 TURNS4 TURNS5 TURNSPressure Drop vs. Reverse Flowfrom ➂ to ➀240 bar/3500 psi Inlet Pressure32 cST/150 ssu oil at 40°C34.5/50027.6/40020.7/30013.8/2006.9/100PRESSURE DROP bar/psi15.14FLOW lpm/gpm60.61675.72045.41230.38CLOSED5 TURNS
