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.

Ratings

Pressure Ratings
Pressure rating
275.8 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
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 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)

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
0.0.24 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

Performance

RV08-29_Flow-Pressure

Dimensions

RV08-29_Dim

Materials

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

Installation Specifications

Cavity
VC08-2
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

Accessories

Seal kit
SK08-2X-B X=seal options

Order code

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)
RV08-29_Order