Symbol
Description
The RV10-21X is a screw-in, cartridge style, hydraulic relief valve for use as a blocking or load-holding
device.
Operation
The RV10-21X allows flow passage from port 1 to port 2, while normally blocking oil flow in the opposite
direction. the cartridge has a fully guided spool which is spring-biased closed until sufficient pressure is
applied at port 1 to open to port 2.
Overview
Ratings
Pressure Ratings
Pressure rating
69 bar (1000 psi)
Proof pressure
138 bar (2000 psi)
Burst pressure
896 bar (13000 psi)
Flow Ratings
Flow rating
75.8 lpm (20 gpm)
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
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 90 °C (-40 to 194 °F)
Operating Parameters
Fluids
Mineral based or synthetic with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
20/18/14 per ISO 4406
RV10-21
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RV10-21
Properties
Unit weight
0.235 kg (0.52 lb) - Note: A
0.281 kg (0.62 lb) - Note: C
0.109 kg (0.24 lb) - Note: F
0.254 kg (0.56 lb) - Note: FT
0.231 kg (0.51 lb) - Note: H
Internal wetted surface area
90 cm² (14.0 in²) - Note: A, C
69 cm² (10.7 in²) - Note: F
112 cm² (17.3 in²) - Note: FT
115 cm² (17.8 in²) - Note: H
Pressure change per adjustment screw
turn
0.9 bar (13 psi) - Note: Option A and C, spring code 1.5
1.2 bar (17 psi) - Note: Option H, spring code 1.5
Performance
Dimensions
RV10-21
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RV10-21
Installation Specifications
Cavity
VC10-2
Cartridge installation torque
32.6 to 35.4 N-m (24 to 26 ft-lb)
Orientation restriction
None
Accessories
Seal kit
SK10-2X-O - Note: X=seal option
Housings
Order Code
POSITION CODE DESCRIPTION
RV10-21F-H-J-R/S
F Adjustment Option
F A 1/4" Hex Allen Head
F C 1/4" Hex Allen Head with Cover Cap
F F Factory Preset Non-Adjustable
F FT Factory Preset Non-Adjustable Tall
F H Factory Preset Hidden Adjustment
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 Fixed Options (code F)
R 0.1 0.7 bar (10 psi)
R 0.3 2.1 bar (30 psi)
R 0.5 3.4 bar (50 psi)
R Fixed Options (code FT)
R 1.6 10.7 bar (155 psi)
R 2.4 16.5 bar (240 psi)
R Adjustable Options (A, C, H)
R 1.5 3.1 to 10.3 bar (45 to 150 psi)
S Setting
S MXXX Pressure Setting in XXX bar
S XX Pressure Setting in XX psi (x 100)
RV10-21
hydraforce.com
RELIEF VALVE
hydraforce.com
12/15/2020
RV10-21
