FLOW CONTROLS
FR50-23 Regulator, Pressure-Compensated,
USASI/ISO:
SYMBOLS
PERFORMANCE
5.314.1
DESCRIPTION
A screw-in, cartridge-style, adjustable, pressure-compensated, restrictive-type
hydraulic fl ow regulating valve.
OPERATION
The FR50-23 maintains a constant fl ow rate out of ➁ regardless of load pressure
changes in the circuit downstream of
➁ or upstream of ➀.
The regulated fl ow increases from closed to fully open with counter-clockwise rotation
of the adjustment screw. The valve will maintain the set fl ow regardless of pressure
variations on the regulated or inlet port. Reverse fl ow from
➁ to ➀ bypasses the
control orifi ce.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Cost-effective cavity.
RATINGS
Operating Pressure: 345 bar (5000 psi)
Flow Rating: 0.4–11.5 lpm (0.1–3.0 gpm)
Flow Maintenance: ±10% through full pressure range
Internal Leakage
➀ to ➁: 30 ml/minute (1.8 cu. in./minute) at 345 bar (5000 psi)
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: VC10-2; See page 9.110.1
Cavity Tool: CT10-2XX; See page 8.600.1
Seal Kit: SK10-2X-M; See page 8.650.1
HYDRAFORCE
.com
®
1
2
13.2/3.5
15.1/4.0
11.4/3.0
5.7/1.5
7.6/2.0
9.4/2.5
3.8/1.0
1.9/0.5
245
TURNS
FLOW lpm/gpm
13
Flow vs. Turns
35 bar/500 psi Inlet Pressure
32 cSt/150 sus oil at 40nC
Regulated Flow vs. Pressure Drop
32 cSt/150 sus oil at 40nC
69
1000
PRESSURE DROP bar/psi
207
3000
276
4000
345
5000
138
2000
13.2/3.5
15.1/4.0
11.4/3.0
5.7/1.5
7.6/2.0
9.4/2.5
3.8/1.0
1.9/0.5
FLOW lpm/gpm
Pressure Drop vs. Reverse Flow
from to ~
32 cSt/150 sus oil at 40nC
27.6/400
20.7/300
13.8/200
6.9/100
PRESSURE bar/psi
5.7
1.5
3.8
1.0
1.9
0.5
FLOW lpm/gpm
11.4
3.0
13.2
3.5
9.5
2.5
7.6
2.0
CLOSED
OPEN
HALF
OPEN
Blue rectangles are links to other catalog pages.
DIMENSIONS
FR50-23
5.314.2
Cartridge: Weight: 0.14 kg. (0.31 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.16 kg. (0.35 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.010.1
MATERIALS
TO ORDER
FR50-23 __ - __ __ __ - __ - / __ __ __ __
Seals
N Buna N (Std.)
V Fluorocarbon
P Polyurethane
(required for
operation over 241 bar/3500 psi)
Adjustment Option
3/16" Hex Allen Head A
Option ‘A’ w/Cover Cap C
Flow Setting
(Blank) Factory Set at
1.5–2.0 gpm
Setting in gpm
Specify; For example:
1.5 1.5 gpm
etc.
Setting in lpm
Specify; For example:
M10 10 lpm
etc.
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
®
HYDRAFORCE
HYDRAFORCE
.com
®
High Pressure
*BSP Body; U.K. Mfr. Only
1.25
31.8
2.00
50.8
0.75
19.1
1.50
38.1
0.13
3.3
1.62
1
1
2
41.1
0.28
7.1
2.00
50.8
*BSP BODY:
55.9
*
1.00
ACROSS
FLATS
TORQUE:
33–37 ft-lbs
(45–50 Nm)
max.
25.4
0.56
ACROSS
FLATS
TORQUE:
5–7 ft-lbs (7–10 Nm)
max.
14.3
0.75
CAP
'C' OPTION
3/16" HEX
ALLEN
HEAD
'A'
19.1
1.43
max.
36.3
1.31
33.3
INCH
MILLIMETRE
1.63
41.4
2
0.56
ACROSS
FLATS
TORQUE:
10–12 ft-lbs
(13.6–16.3 Nm)
14.3
Blue rectangles are links to other catalog pages.
