Cartridge Valves - Pressure Control Valves - Sequence Valves - Internal Pilot

PS08-30

SEQUENCE VALVE

Overview

Description

PS08-30 is a direct-acting, spool-type, hydraulic sequence valve with internal pilot and spring chamber drain, designed to direct oil to a secondary circuit once a predetermined pressure level is attained in the primary circuit.

Operation

In its steady state, the PS08-30 blocks flow at port 1 while allowing flow to pass from port 2 to port 3. On attainment of a predetermined pressure at port 1, the cartridge shifts to open at port 1 to port 2.

Features

  • Adjustments cannot be backed out of the valve.
  • Adjustments prohibit springs from going solid.
  • Optional spring ranges to 165.5 bar (2400 psi).
  • Hardened spool and cage for long life.
  • Compact, industry-common size.
Pressure Ratings
Pressure rating:
  • 241.3 bar (3500 psi) At all ports
Proof pressure:
  • 482.6 bar (7000 psi) At all ports
Burst pressure:
  • 896.3 bar (13000 psi)
Flow Ratings
Flow rating:
  • 22.7 lpm (6 gpm)
Maximum internal leakage:
  • 82 ml/min (5 in³/min) Max at nominal setting
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With viton seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Fluids:
  • Mineral based or synthetic with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.24 kg (0.53 lb) PS08-30A
  • 0.23 kg (0.51 lb) PS08-30F PS08-30H
  • 0.26 kg (0.58 lb) PS08-30B
  • 0.29 kg (0.63 lb) PS08-30C
Internal wetted surface area:
  • 128 cm² (19.9 in²) PS08-30A PS08-30B PS08-30C
  • 143 cm² (22.1 in²) PS08-30F PS08-30H
PS08-30_Flow-Press2(2022-02-24) PS08-30_Flow-Press1(2022-02-24)
PS08-30_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 25.8 to 28.6 N-m (19 to 21 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-3X-BB X=seal option
PS08-30_Order(2022-02-24)

Model Options

PS08-30F-H-J-R/S
F Adjustment Option
CODE
DESCRIPTION
A
1/4" Hex Allen Head
B
1-1/2" Diameter Aluminum Knob with Aluminum Lock Knob
C
1/4" Hex Allen Head with Cover Cap
F
Factory Preset Non-Adjustable
H
Factory Preset Hidden Adjustment
L
1/4" Hex Allen Head with Cover Cap and Lockwire Holes
H Line Body
CODE
DESCRIPTION
0
No Body
4T
Aluminum SAE 4
6T
Aluminum SAE 6
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
03
3.4 to 20.7 bar (50 to 300 psi) Spring Range
06
8.3 to 41.4 bar (120 to 600 psi) Spring Range
13
13.8 to 89.6 bar (200 to 1300 psi) Spring Range
24
30 to 165.5 bar (450 to 2400 psi) Spring Range
S Setting
CODE
DESCRIPTION
MXXX
Spring Setting in XXX bar
XX
Spring Setting in XX psi (x 100)