PRESSURE CONTROLS
DESCRIPTION
A screw-in, cartridge-style, direct-acting, spool-type, hydraulic pressure reducing/re-
lieving valve with internal pilot and internal spring chamber drain, designed to act as a
pressure-regulating device for secondary circuits. It is intended for use in stable input
fl ow circuits.
OPERATION
In its steady state, the PR10-32 allows fl ow to pass bidirectionally from ➁ to ➀, with
the spring chamber constantly drained at
➂.
On attainment of a pre-determined pressure at
➀, the cartridge shifts to restrict input
fl ow at
➁, thereby regulating pressure at ➀. In this mode, the valve will also relieve ➀
to
➂ at approximately 10 bar (150 psi) over the reducing setting.
Note: Direct-acting PR series valves may not be suitable for some static load
applications. Consult factory.
FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 145 bar (2100 psi).
• Hardened spool and cage for long life.
• Industry common cavity.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage
➁ to ➂: 82 cc/minute (5 cu. in/minute) max.
at ΔP 207 bar (3000 psi)
Standard Spring Ranges (Reducing Function):
5.5 to 27.6 bar (80 to 400 psi)
13.8 to 55.2 bar (200 to 800 psi)
20.7 to 103 bar (300 to 1500 psi)
27.6 to 145 bar (400 to 2100 psi)
Temperature: -40 to 120°C with standard Buna 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: VC10-3; See page 9.110.1
Cavity Tool: CT10-3XX; See page 8.600.1
Seal Kit: SK10-3X-BM; See page 8.650.1
PR10-32 Pressure Reducing/Relieving
USASI/ISO:
SYMBOLS
PERFORMANCE (Cartridge Only)
6.420.1
172/2500
138/2000
103/1500
69/1000
15.1
4
7.5
2
0
0
15.1
4
FLOW RATE lpm/gpm
PRESSURE RISE bar/psi
Flow Characteristic
32 cSt/150 ssu oil at 40°C
7.5
2
Relieving Reducing
35/500
22.7
6
30.2
8
22.7
6
30.2
8
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
Setting in bar
†
(Blank) for Adjustable, or
Specify, for example:
M25 25 bar
M100 100 bar
Setting in psi
†
(Blank) for Adjustable, or
Specify, for example:
9.0 900 psi
21.0 2100 psi
Spring Range
4 5.5 to 27.6 bar
(80 to 400 psi)
8 13.8 to 55.2 bar
(200 to 800 psi)
15 20.7 to 103 bar
(300 to 1500 psi)
21 27.6 to 145 bar
(400 to 2100 psi)
†
Adjustable valves will be preset to
approx. 50% of spring max. potential.
MATERIALS
Cartridge: Weight: 0.27 kg. (0.60 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Anodized aluminum knobs
and caps.
Standard Ported Body: Weight:
0.36 kg. (0.80 lbs.); Anodized
high-strength 6061 T6 aluminum
alloy, rated to 240 bar (3500 psi).
Ductile iron bodies available;
dimensions may differ.
See page 8.010.1.
TO ORDER
Seals
Buna N (Std.) N
Fluorocarbon V
Adjustment Option
1/4 in. Hex Allen Head A
1-1/2 in. Dia. Alum. Knob B
Option A w/Cover Cap C
Factory Preset Non-Adjst. F
Factory Preset Hidden
Adjust. See page 6.003.1 H
Option C
w/Lockwire Holes L
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
*BSP Body;
U.K. Mfr Only
PR10-32__ - __ __ __ - __ - __ __ / __ __ __ __
PR10-32
6.420.2
DIMENSIONS
1.25
31.8
1.50
38.1
3.12
79.2
3.34
84.8
2.25
57.2
1.81
46.0
1.81
46.0
0.25
6.4
2.00
50.8
0.28
7.1
1.36
34.5
2.62
66.5
2.12
53.8
0.74
18.8
INCH
MILLIMETRE
DIA.
MAX.
1.00
25.4
ACROSS
FLATS
TORQUE–
25 ft-lbs
(33.9 Nm) max.
1.25
31.8
2.50
63.5
®
HYDRAFORCE
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
