Valves - Pressure Controls - Relief Valve - Direct Acting - Differential Area Poppet Type

RV08-22

RELIEF VALVE CARTRIDGE DIRECT ACTING DIFFERENTIAL AREA POPPET TYPE

Overview

Description

RV08-22X is a screw in, cartridge style, direct acting, differential area, poppet type, hydraulic relief valve for use as a pressure limiting device in more demanding hydraulic circuits requiring low hysteresis and low internal leakage.

Operation

RV08-22X blocks flow from port 2 to port 1 until sufficient pressure is present at port 2 to force the poppet off its seat.

Features

  • Adjustments cannot be backed out of the valve.
  • Variety of pressure adjustment options including non-adjustable factory preset.
  • Adjustment options A, B, and C: positive stops prevent springs from going solid.
  • Optional bi-directional pressure (requires bi-directional pressure seal option).
  • Hardened poppet and cage for long life.
  • Optional spring ranges to 248 bar (3600 psi).
  • Smooth response to pressure surges.
  • Industry common cavity.
  • Compact size.
Pressure Ratings
Pressure rating:
  • 248.2 bar (3600 psi)
Proof pressure:
  • 496.4 bar (7000 psi)
Burst pressure:
  • 1037.7 bar (16168 psi)
Relief pressure defined:
  • Pressure evident at
  • 0.95 lpm (0.25 gpm)
Reseat pressure:
  • Nominal 90% of crack
Flow Ratings
Flow rating:
  • 30.3 lpm (8 gpm) At max pressure
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) Max to 85% of 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 fluorocarbon 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:
  • 0.17 kg (0.37 lb) A
  • 0.19 kg (0.42 lb) B
  • 0.22 kg (0.47 lb) C l
  • 0.16 kg (0.35 lb) F h
Internal wetted surface area:
  • 112 cm² (17.4 in²) A b c l
  • 122 cm² (19.2 in²) F h
RV08-22_Flow-Pressure(2022-02-24)
RV08-22_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 25.8 to 28.5 N-m (19 to 21 ft-lb)
Maximum allowable torque:
  • 40.7 N-m (30 ft-lb)
Plug torque:
  • 33.9 to 36.7 N-m (25 to 27 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-2X-T X=seal options
  • SK08-2X-M X=seal options
RV08-22_Order(2022-02-24)

Model Options

RV08-22F-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
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
2B
Aluminum BSPP 1/4" (2)
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
NC
Buna-N for Crossover Applications
V
Fluorocarbon
VC
Fluorocarbon for Crossover Applications
P
Polyurethane
PC
Polyurethane for Crossover Applications
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
04
3.4 to 27.6 bar (50 to 400 psi) Spring Range
07
6.9 to 48.3 bar (100 to 700 psi) Spring Range
13
10.3 to 89.6 bar (150 to 1300 psi) Spring Range
26
17.2 to 248.2 bar (250 to 3600 psi) Spring Range
35
17.2 to 248.2 bar (250 to 3600 psi) Spring Range
S Setting
CODE
DESCRIPTION
MXXX
Spring Setting in XXX bar
XX
Spring Setting in XX psi (x 100)