PRESSURE CONTROLS
PS10-33 Sequence, External Pilot, Internal Drain
DESCRIPTION
A screw-in, cartridge-style, direct-acting, spool-type, hydraulic sequence valve with
external pilot and internal spring chamber drain.
OPERATION
In its steady state, the PS10-33 blocks fl ow from ➂ to ➁.
On attainment of a pre-determined pressure at
➀, the cartridge shifts to open ➂ to ➁.
Since the spring chamber is vented at
➁, back pressure at ➁ will directly (1:1) affect
the valve’s setting.
FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Spring range to 240 bar (3500 psi).
• Hardened spool and cage for long life.
• Industry common cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow: See Performance Chart
Internal Leakage: 82 cc/minute (5 cu. in./minute) max. to 90% of nominal setting
Standard Spring Range: 35 to 240 bar (500 to 3500 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-TB; See page 8.650.1
USASI: ISO:
SYMBOLS
PERFORMANCE (Cartridge Only)
6.540.1
6.9/100
10.3/150
13.8/200
17.2/250
20.7/300
24.1/350
27.6/400
31.0/450
34.5/500
3.4/50
7.6
2
3.8
1
15.1
4
11.4
3
18.9
5
22.7
6
26.5
7
FLOW RATE lpm/gpm
PRESSURE DROP bar/psi
Pressure vs. Flow
➂ to ➁; 40–400 psi Spring
32 cSt/150 ssu oil at 40°C
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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.
Standard Ported Body: Weight:
0.36 kg. (0.80 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
DIMENSIONS
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 Adjustment H
(See page 6.003.1)
Option C w/
Lockwire Holes L
Seals
Buna N (Std.) N
Fluorocarbon V
Setting in bar
†
(Blank) for Adjustable, or
Specify, for example:
M50 50 bar
M100 100 bar
Setting in psi
†
(Blank) for Adjustable, or
Specify, for example:
9.0 900 psi
23.5 2350 psi
Spring Range
35 35 to 240 bar
(500 to 3500 psi)
PS10-33__ - __ __ __ - __ - __ __ / __ __ __ __
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
†
Adjustable valves will be
preset to approx. 50% of
spring max. potential.
PS10-33
6.540.2
®
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