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RVD58-20_Valve(2022-02-24)

RVD58-20

Relief valve

RVD58-20_sym_2026-02-25
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Description

The RVD58-20X 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 RVD58-20X 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.

Pressure Ratings
Pressure rating:
  • 5076 psi [350 bar] Port 1
  • 3000 psi [207 bar] Port 2
Proof pressure:
  • Note: Port 1
  • 10000 psi [689 bar]
Burst pressure:
  • 20000 psi [1379 bar]
Crack pressure defined:
  • pressure evident at at 0.95 lpm (0.25 gpm)
Flow Ratings
Flow rating:
  • Note: Port 1 to 2 at Max pressure
  • 10 gpm [37.9 lpm]
Maximum internal leakage:
  • 5 drops/min [0.25 ml/min] to 85% of crack pressure
Temperature Ratings
Operating fluid temperature:
  • -40 °f to 212 °f [-40 °c to 100 °c] With Buna N seals
  • -15 °f to 400 °f [-26 °c to 204 °c] With fluorocarbon seals
  • -65 °f to 225 °f [-54 °c to 107 °c] With polyurethane seals
Storage temperature:
  • -40 °f to 160 °f [-40 °c to 70 °c]
Ambient temperature:
  • -40 °f to 160 °f [-40 °c to 70 °c]
Control pressure setting:
  • Pressure evident at 0.25 gpm [0.95 lpm]
Reseat pressure:
  • Nominal 90% of crack pressure
Fluids:
  • Mineral based or synthetic with Lubricating properties.
Fluid viscosity range:
  • 7.4-420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Corrosion protection:
  • 230 hr salt spray per ASTM B117 RVD58-20X
  • 960 Hr salt spray per ASTM B117 GRVD58-20X
Unit weight:
  • 0.28 lb [0.13 kg]
Internal wetted surface area:
  • 13.8 in [89.0 cm]
Approximate pressure increment per adjuster turn:
  • 138 psi [9.5 bar] Spring code 08
  • 536 psi [37 bar] Spring code 30
  • 949 psi [65.5 bar] Spring code 50
RVD58-20_perf_2026-02-25
RVD58-20_dim_2026-02-25
Cavity:
  • Note: Variation B
  • VC08-2
Cartridge installation torque:
  • 33-37 ft-lb [44.7-50.2 N-m]
Orientation restriction:
  • None
Adjuster torque:
  • Note: Maximum torque to apply when backing out adjuster
  • 17.6 N-m (13 ft-lb)
Hex nut torque:
  • 10 ±1.0 ft-lb [13.6 ±1.4 N-m]
Seal kit:
  • SK08-2HN-O
  • SK08-2HV-O
  • SK08-2P-O
Housings:
Black Tamper-proof Cap:
  • Part No. 4618450
RVD58-20_order_2026-02-25

Model Options

RVD58-20F-H-J-R/S
F Adjustment Option
CODE
DESCRIPTION
A
1/4 in Allen Head
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
8T
Aluminum SAE 8
8TD
Ductile Iron SAE 8
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
R Spring
CODE
DESCRIPTION
8
14 to 55 bar (200 to 800 psi) Spring Range
30
55 to 207 bar (800 to 3000 psi) Spring Range
50
207 to 350 bar (3000 to 5075 psi) Spring Range
S Setting
CODE
DESCRIPTION
MXXX
Spring Setting in XXX bar
XX
Spring Setting in XX psi (x 100)
RVD58-20_sym_2026-02-25
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