FLOW CONTROLS
FR12-30F Regulator, Pressure-Compensated
DESCRIPTION
A screw-in, cartridge-style, pressure-compensated, non-adjustable fl ow regulator,
intended for use in fi xed displacement hydraulic circuits requiring partial pump fl ow
diversion on a priority basis.
OPERATION
The FR12-30F maintains a constant fl ow rate from ➂ regardless of load pressure
changes in the system downstream of
➂, or in the bypass leg at ➁.
The valve’s spool maintains a constant differential pressure of 6.5 bar (95 psi) across
a fi xed internal orifi ce, thereby regulating the hydraulic fl ow rate from
➁ to ➂.
The FR12-30F is a priority type regulator, delivering the pump fl ow to
➂ fi rst, then
bypassing excess to
➁. All ports may be fully pressurized.
Flow out of priority port
➂ may vary based on input fl ow amount, particularly with
lower temperatures and increased fl uid viscosities. Settings may need to be
established through correlation study. Consult factory.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Cost effective cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow Rate: 49.2 lpm (13.0 gpm) max. regulated; 94.6 lpm (25.0 gpm) max. input
Standard Compensator Bias Spring: 6.5 bar (95 psid) differential
Flow Maintenance Setting Range: 3.8 to 11.4 lpm (1.0 to 3.0 gpm) to accuracy
of ±15%; 11.4 to 45.4 lpm (3.0 to 12.0 gpm) to accuracy of ±10%
Temperature: -40 to 120°C
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
USASI: ISO:
PERFORMANCE (Cartridge Only)
SYMBOLS
5.345.1
56.8/15
37.9/10
18.9/5
69.0
1000
137.9
2000
PRESSURE DROP bar/psi
FLOW lpm/gpm
Flow Maint. Characteristic to
32 cSt/150 ssu oil at 40°C
206.9
3000
➀➂
10.3
150
3.4
50
37.9
10
BYPASS FLOW RATE lpm/gpm
75.8
20
113.6
30
PRESSURE DIFF. -
bar/psi
➀➂
6.9
100
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FR12-30F - __ __ __ - __ - / __ __ __ __
Cartridge: Weight: 0.30 kg. (0.68 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.98 kg. (2.15 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.012.1
DIMENSIONS
MATERIALS
TO ORDER
Porting
Cartridge Only 0
SAE 8 8T
SAE 10 10T
SAE 12 12T
1/2 in. BSP* 4B
3/4 in. BSP* 6B
*BSP Body;
U.K. Mfr. Only
Priority Setting
Setting in LPM
Range: 4 to 50 lpm
Specify, for example:
M4.0 4.0 lpm
M8.0 8.0 lpm
etc.
Setting in GPM
Range: 1 to 13 gpm
Specify, for example:
1.5 1.5 gpm
5.0 5.0 gpm
etc.
Drill Size Method
In thousandths of an inch.
Specify, for example:
D050 0.050 in. control orifi ce hole
etc.
Note: Compensator spring values may
be varied for OEM application to provide
changed differential pressure/output fl ow
relationships. Consult factory.
FR12-30F
5.345.2
Seals
Buna N (Std.) N
Fluorocarbon V
Note: Minimum drill diameter is 0.020 in.
For smaller orifi ce sizes consult factory.
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