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

RVD58-20

RELIEF VALVE

Overview

Overview

The RVD58-20 is a screw-in, cartridge style, direct acting poppet type relief valve intended for use as a pressure limiting device for common hydraulic circuit protection.

Operation

The RVD58-20 blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the poppet off its seat. the cartridge offers fast response to load changes in circuits requiring low hysteresis, low pressure rise, and low internal leakage.

Features

  • Compact and economical
  • Dynamic response to pressure surges
  • Hardened poppet and cage for long life
  • Optional spring ranges to 350 bar (5076 psi)
  • EEEmbossed QR code provides serial number
  • High durometer Buna and Fluorocarbon seals
  • Optional cap

Ratings

Pressure Ratings
Pressure rating
345 bar (5000 psi) At port 1
207 bar (3000 psi) At port 2
Proof pressure
413 bar (10,000 psi) Port 1
Burst pressure
1379 bar (20,000 psi) Port 1
Crack pressure defined
pressure evident at at 0.95 lpm (0.25 gpm)
Reseat pressure
Nominal 90% of crack pressure
Flow Ratings
Flow rating
37.9 lpm (10 gpm) at maximum pressure
Maximum internal leakage
0.25 ml/min (5 drops) at maximum pressure
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
Ambient temperature
-40 to 70 °C (-40 to 160 °F)
Storage 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
0.13 kg (0.28 lb)
Internal wetted surface area
89 cm² (113.8 in²)

Performance

RVD58-20_Chart

Dimensions

RVD58-20_Dim

Materials

Cartridge:Steel with hardened work surfaces. Zinc-plated exposed surfaces.

Standard Ported Body:Weight: 0.161 kg (0.355 lb). Anodized, high-strength aluminum body rated to 207 bar (3000 psi). Ductile iron (Code D) rated for 350 bar (5,000 psi) also available. Weight 0.625 kg (1.379 lb).

Installation Specifications

Cavity
VC08-2B
Cartridge installation torque
44.7 to 50.2 N-m (33 to 37 ft-lb)
Adjuster torque
17.6 N-m (13 ft-lb) Maximum torque to apply when backing out adjuster
Hex nut torque
13.6 ±1 N-m (10 ±1 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK08-2HN-O Nitrile
SK08-2HV-O Fluorocarbon
SK08-2P-O Polyurethane

Order code

POSITION
CODE
DESCRIPTION
RVD58-20F-H-J-R/S
F
Adjustment Option
F
1/4 in Allen Head
H
Line Body
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
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
R
Spring
R
8
14 to 55 bar (200 to 800 psi) Spring Range
R
30
55 to 207 bar (800 to 3000 psi) Spring Range
R
50
207 to 350 bar (3000 to 5075 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RVD58-20_Order