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

RV50-22

RELIEF VALVE CARTRIDGE DIRECT ACTING POPPET

Overview

Description

RV50-22X is a screw in, cartridge style, direct acting, differential area, poppet type, hydraulic relief valve intended for use as a pressure limiting device in more demanding hydraulic circuits requiring low hysteresis and low internal leakage

Operation

The RV50-22X blocks flow from port 2 to port 1 until sufficient pressure is present at port 2 to force the poppet from its seat. The cartridge offers smooth transition in response to loads in common hydraulic circuits

note: the RV50-22X may not be used in cross-over relief applications (back pressure on port 1)

Features

  • Adjustments cannot be backed out of the valve.
  • Adjustments prevent springs from going solid.
  • Hardened poppet and cage for long life.
  • Smooth response to pressure surges.
  • Industry-common size.

Ratings

Pressure Ratings
Pressure rating
365 bar (5300 psi)
Proof pressure
482.6 bar (7000 psi)
Burst pressure
965.3 bar (14000 psi)
Crack pressure defined
Pressure evident at 7.6 lpm (2 gpm)
Flow Ratings
Flow rating
75.7 lpm (20 gpm)
Maximum internal leakage
5 drops/min To 85% 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)

Operating Parameters

Fluids
Mineral based or synthetic hydraulic fluid 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 (0.51 lb) RV50-22A
0.25 kg (0.56 lb) RV50-22B
0.28 kg (0.61 lb) RV50-22C
0.22 kg (0.49 lb) RV50-22F
0.22 kg (0.49 lb) RV50-22H
0.28 kg (0.61 lb) RV50-22L
Internal wetted surface area
114 cm² (17.7 in²) A b c l
126 cm² (19.5 in²) F h

Performance

RV50-22_Flow-Pressure

Dimensions

RV10-20_Dim

Materials

Materials

Cartridge: Weight: 0.23 kg (0.50 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-up standard. Polyurethane seals with Fluorocarbon back-ups recommended for pressures over 207 bar (3000 psi). Anodized aluminum knobs.

Standard Ported Body: Weight: 0.54 kg (1.2 lb); Ductile iron (code "D") standard; dimensions may differ; rated to 345 bar (5000 psi).

Adjustment Option Details: See adjustment options

Installation Specifications

Cavity
VC10-2
Cartridge installation torque
44.7 to 50.2 N-m (33 to 37 ft-lb)
Maximum allowable torque
67.8 N-m (50 ft-lb)
H style plug torque
10.8 to 13.6 N-m (8 to 10 ft-lb) N V P U
32 to 34 N-m (23 to 25 ft-lb)
34 N-m (25 ft-lb) Maximum
Orientation restriction
None

Accessories

Seal kit
SK10-2X-T X=n, v, P
SK10-2P-M For PC seal option
SK10-2U-O For U seal option

Order code

POSITION
CODE
DESCRIPTION
RV50-22F-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
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
4B
Aluminum BSPP 1/2" (4)
H
4BD
Ductile Iron BSPP 1/2" (4)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
R
Spring
R
50
34 to 345 bar (500 to 5000 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RV50-22_Order