Valves - Pressure Controls - 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.

Ratings

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
Maximum 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)

Operating Parameters

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

Properties

Cartridge 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

Performance

PS08-30_Flow-Press2 PS08-30_Flow-Press1

Dimensions

PS08-30_Dim

Materials

Materials

Cartridge: Weight: 0.25 kg (0.55 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and back-ups standard. Anodized aluminum knobs.

Standard Ported Body: Weight: 0.27 kg (0.60 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Adjustment Option Details: See adjustment options

Installation Specifications

Cavity
VC08-3
Cartridge installation torque
25.8 to 28.6 N-m (19 to 21 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK08-3X-BB X=seal option

Order code

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