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

RV58-20

RELIEF VALVE CARTRIDGE DIRECT ACTING DIFFERENTIAL AREA POPPET TYPE

Overview

Description

RV58-20X is a screw-in, cartridge style, direct acting, poppet type, hydraulic relief valve intended for lower flow circuits, requiring low internal leakage

Operation

The RV58-20X 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

  • Rated for higher operating pressure of 345 bar (5000 psi).
  • Bi-directional pressure option available.
  • Adjustments cannot be backed out of the valve.
  • Adjustments prohibit springs from going solid.
  • Variety of adjustment options available.
  • Rapid response to pressure changes.
  • Compact size.

Ratings

Pressure Ratings
Pressure rating:
  • 344.7 bar (5000 psi)
Proof pressure:
  • 517.1 bar (7500 psi)
Burst pressure:
  • 1294.4 bar (18774 psi)
Relief pressure defined:
  • Pressure evident at
  • 0.95 lpm (0.25 gpm)
Reseat pressure:
  • Nominal 80% of crack pressure
Flow Ratings
Flow rating:
  • 22.7 lpm (6 gpm)
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) Max to 75% 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 with urethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • RV58-20X -type 111 clear zinc plating per ASTM b633. Grv10-20x -960 hr salt spray per ASTM b117

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:
  • 0.23 kg (0.50 lb) RV58-20A RV58-20H
  • 0.26 kg (0.57 lb) RV58-20B
  • 0.28 kg (0.61 lb) RV58-20C RV58-20L
  • 0.23 kg (0.51 lb) RV58-20F
Internal wetted surface area:
  • 112.3 cm² (17.42 in²) RV58-20A RV58-20B RV58-20C RV58-20L
  • 131.7 cm² (20.41 in²) RV58-20F RV58-20H

Performance

RV58-20_Flow-Pressure

Dimensions

RV58-20_Dim

Materials

Materials

Cartridge: Weight: 0.23-0.28 kg (0.50-0.61 lb); depending on adjustment option. Steel with hardened work surfaces. Zinc-plated exposed surfaces; Polyurethane O-rings standard. Anodized aluminum knobs and caps.

Ported Body: Weight: 0.54 kg (1.20 lb); Ductile Iron (code "D") standard, consult factory for weight, dimensions may differ. Rated to 345 bar (5000 psi).

Adjustment Option Details: See adjustment options

Installation Specifications

Cavity:
Cartridge installation torque:
  • 32.5 to 35.3 N-m (24 to 26 ft-lb)
Maximum allowable torque:
  • 40.7 N-m (30 ft-lb)
H style plug torque:
  • 10.8 to 13.6 N-m (8 to 10 ft-lb) N V P U
  • 31 to 34 N-m (23 to 25 ft-lb) PC
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK08-2X-B X=seal option
  • SK08-2X-M X=seal option

Order Code

POSITION
CODE
DESCRIPTION
RV58-20F-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
R
Spring
R
46
55.2 to 317.2 bar (800 to 4600 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RV58-20_Order