Flow Control Valves

FR08-30F — Flow Regulator, Pressure Compensated
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FR08-30F Valve

SYMBOL:
FR08-30F Valve symbol

DESCRIPTION
A screw-in, cartridge-style, non-adjustable, pressure-compensated, hydraulic flow
regulating valve intended for use in fixed displacement hydraulic circuits requiring
partial pump flow diversion on a priority basis.

OPERATION
The FR08-30F maintains a constant flow rate out of port 3 regardless of load pressure changes in
the circuit downstream of port 3, or in the bypass leg at 2.
The valve’s spool maintains a constant differential pressure of 6.5 bar (95 psi) across a fixed internal
orifice, thereby regulating the hydraulic flow rate from 1 to 3.
The FR08-30F is a priority type regulator, delivering the pump flow to 3 first, then
bypassing excess to 2. All ports may be fully pressurized.
Flow out of priority port 3 may vary based on input flow amount, particularly with lower temperatures
and increased fluid viscosities. Settings may need to be established through correlation study.
Consult factory.

FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Compact, industry-common cavity.

RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow Rate: 7.6 lpm (2.0 gpm) max. regulated; 11.4 lpm (3.0 gpm) max. input.
   Inlet pressure at port 1 begins to rise over the compensating differential
   when bypass flow exceeds 7.5 lpm (2 gpm)
Standard Compensator Bias Spring: 6.5 bar (95 psid) differential
Flow Maintenance Setting Range: 0.4 to 1.8 lpm (0.10 to 0.49 gpm) to accuracy of ±15%;
   1.9 to 7.5 lpm (0.5 to 2.0 gpm) to accuracy of ±10%
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with Fluorocarbon 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: VC08-3; See page 9.108.1_3w
Cavity Tool: CT08-3xx; See page 8.600.1
Seal Kit: SK08-3x-TB; See page 8.650.1

PERFORMANCE:

FR08-30F Flow vs. Pressure

  DIMENSIONS:FR08-30F Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.14 kg. (0.30 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and back-ups standard.

Standard Ported Body:
Weight: 0.27 kg. (0.60 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar
(3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.008.1_3w
  ORDERING CHART:

FR08-30F Ordering


Selection guide - similar valves.
PDF file of this page. STP file for FR08-30F Request a quote.