Symbol
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
Overview
Ratings
Pressure Ratings
Pressure rating
345 bar (5000 psi) - Note: At port 1
207 bar (3000 psi) - Note: At port 2
Proof pressure
413 bar (10,000 psi) - Note: Port 1
Burst pressure
1379 bar (20,000 psi) - Note: 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) - Note: at maximum pressure
Maximum internal leakage
0.25 ml/min (5 drops) - Note: at maximum pressure
Temperature Ratings
Operating fluid temperature
-40 to 100 °C (-40 to 212 °F) - Note: With buna N seals
-26 to 204 °C (-15 to 400 °F) - Note: With fluorocarbon seals
-54 to 107 °C (-65 to 225 °F) - Note: 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
Unit weight
0.13 kg (0.28 lb)
Internal wetted surface area
89 cm² (113.8 in²)
RVD58-20
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RVD58-20
Performance
Dimensions
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) - Note: Maximum torque to apply when backing out adjuster
Hex nut torque
13.6 ±1 N-m (10 ±1 ft-lb)
Orientation restriction
None
RVD58-20
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RVD58-20
Accessories
Seal kit
SK08-2HN-O - Note: Nitrile
SK08-2HV-O - Note: Fluorocarbon
SK08-2P-O - Note: Polyurethane
Housings
Black Tamper-proof Cap
Part No. 4618450
RVD58-20
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RVD58-20
Order Code
POSITION CODE DESCRIPTION
RVD58-20F-H-J-R/S
F Adjustment Option
F A 1/4 in Allen Head Fixed-Height Adjuster
F C Tamper-proof Cap
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 XX Spring Setting in XX psi (x 100)
RVD58-20
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RVD58-20
