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
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 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

Cartridge 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
VC08-2
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