PRESSURE CONTROLS
PS10-43 Sequence, 3-Way, 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. It is designed to function as a remote
pilot-operated three-way valve.
OPERATION
In neutral (unpiloted), the PS10-43 allows fl ow between ➂ and ➁ bidirectionally,
while blocking at
➃.
The spring chamber is constantly vented at
➃.
On attainment of a pre-determined pressure at
➀, the cartridge shifts to close ➂ to
➁, while opening ➂ to ➃. Note that back-pressure value at ➃ must be added to the
selected pressure setting to determine pilot pressure.
FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 151.7 bar (2200 psi).
• Hardened precision 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 85% of nominal setting
Standard Spring Ranges: 2.8 to 27.6 bar (40 to 400 psi);
15.2 to 151.7 bar (220 to 2200 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: VC10-4; See page 9.110.1
Cavity Tool: CT10-4XX; See page 8.600.1
Seal Kit: SK10-4X-BMM; See page 8.650.1
USASI: ISO:
PERFORMANCE (Cartridge Only)
6.792.1
27.6/200
34.5/250
41.4/300
48.3/350
20.7/150
13.8/100
6.9/50
7.5
2
FLOW RATE lpm/gpm
PRESSURE DROP bar/psi
Flow Characteristic
32 cSt/150 sus oil at 40°C
15.1
4
22.7
6
30.3
8
37.9
10
➂ to ➁
➂
to ➃
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SYMBOLS
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
Seals
Buna N (Std.) N
Fluorocarbon V
TO ORDER
Cartridge: Weight: 0.34 kg. (0.70 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:
0.34 kg. (0.70 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
PS10-43__ - __ __ __ - __ - __ __ / __ __ __ __
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
Option C
w/Lockwire Holes L
DIMENSIONS
Spring Range
4 2.8 to 27.6 bar
(40 to 400 psi)
22 15.2 to 151.7 bar
(220 to 2200 psi)
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
PS10-43
6.792.2
†
Adjustable valves will be
preset to approx. 50% of
spring max. potential.
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MATERIALS
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