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.

Ratings

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)

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

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

Performance

RV08-22_Flow-Pressure

Dimensions

RV08-22_Dim

Materials

Materials

Cartridge: Weight: 0.16 kg. (0.35 lb.) to 0.22 (0.47 lb.) depending on adjustment option; Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and back-up standard. Anodized aluminum knob.

Standard Ported Body: Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Adjustment Option Details: See adjustment options

Installation Specifications

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

Accessories

Seal kit:
  • SK08-2X-T X=seal options
  • SK08-2X-M X=seal options

Order Code

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