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

RV08-29

RELIEF VALVE CARTRIDGE DIRECT ACTING POPPET TYPE

Overview

Description

RV08-29X is a screw in, cartridge style, direct acting, poppet type, hydraulic relief valve intended for control of pressure in low flow that control pilot operating valves

Operation

RV08-29X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the spring opposed poppet from its seat

Features

  • Adjustments cannot be backed out of the valve.
  • Variety of pressure adjustment options including non-adjustable factory preset..
  • Hardened poppet and cage for long life.
  • Optional spring ranges to 241 bar (3500 psi).
  • Smooth response to pressure surges.
  • Industry common cavity.
  • Compact size.

Notes

Supersession: Existing and new applications.

RVD58-20 Is our best-in-class relief valve and can functionally replace this valve in most applications. We strongly encourage you to consider this newer alternative.

Considerations:

  • Comparable pressure and flow ratings
  • Comparable response rate
  • Better pressure rise characteristics
  • Smaller size
  • No dynamic seal
  • Competitive cost
  • VC08-2B cavity variation is required. Some manifolds may allow drop-in replacement.
  • Assistance is available to evaluate your application
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 482.6 bar (7000 psi)
Burst pressure:
  • 896.3 bar (16000 psi)
Relief pressure defined:
  • Pressure evident at
  • 0.95 lpm (0.25 gpm)
Reseat pressure:
  • Nominal 80% of crack pressure
Flow Ratings
Flow rating:
  • 1.9 lpm (0.5 gpm) At max pressure
Maximum internal leakage:
  • 3 ml/min (0.18 in³/min) Max to 80% 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
  • -54 to 107 °C (-65 to 225 °F) With urethane 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:
  • 0.0.24 kg (0.52 lb) RV08-29A
  • 0.29 kg (0.64 lb) RV08-29C RV08-29L
  • 0.26 kg (0.57 lb) RV08-29B
  • 0.22 kg (0.48 lb) RV08-29F RV08-29H
Internal wetted surface area:
  • 145 cm² (22.4 in²) RV08-29A RV08-29B RV08-29C RV08-29L
  • 135 cm² (21.0 in²) RV08-29F RV08-29H
RV08-29_Flow-Pressure
RV08-29_Dim

Materials

Cartridge: Weight: 0.22 kg - 0.29 kg (0.48 - 0.64 lb) depending on adjustment options. Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and back-up standard. Anodized aluminum knobs and caps.

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

Cavity:
Cartridge installation torque:
  • 25.8 to 28.5 N-m (19 to 21 ft-lb)
H style plug torque:
  • 34 to 36.7 N-m (25 to 27 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-2X-B X=seal options
RV08-29_Order
POSITION
CODE
DESCRIPTION
RV08-29F-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
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
13
17.2 to 89.6 bar (250 to 1300 psi) Spring Range
R
35
68.9 to 241.3 bar (1000 to 3500 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)