Valves - Pressure Controls - Relief Valve - Piloted - Spool Type

RV10-26

PILOT OPERATED RELIEF VALVE U.S. PATENT # 7,137,406

Overview

Description

RV10-26X is a screw in, cartridge style, pilot operated (two stage), spool type hydraulic relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis.

Operation

The RV10-26X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the piloting relief off its seat, allowing the main (second stage) spool to shift, opening port 1 to port 2.

note: this valve cannot be used in cross-over relief applications.

Features

  • Adjustments cannot be backed out of the valve.
  • Adjustment options A, B and C: positive stops prevent springs from going solid.
  • Hardened spool and cage for long life.
  • Optional spring ranges to 207 bar (3000 psi).
  • Fast, smooth response to pressure surges.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 517.1 bar (7500 psi)
Burst pressure:
  • 1037.7 bar (15000 psi)
Relief pressure defined:
  • Pressure evident at
  • 7.57 lpm (2 gpm)
Reseat pressure:
  • Nominal 90% of crack
Relief pressure range:
  • 6.9 to 206.8 bar (100 to 3000 psi) From zero to maximum control current
Flow Ratings
Flow rating:
  • 113.6 lpm (30 gpm) At max pressure
Maximum internal leakage:
  • 114.7 ml/min (7 in³/min) At port 2 at 85% of crack pressure. Pressure setting below 137.9 bar (2000 psi)
  • 491.6 ml/min (30 in³/min) At port 2 at 85% of crack pressure. Pressure setting above 137.9 bar (2000 psi)
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 and 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:
  • Grv10-26x 960 hour salt spray per ASTM b117 cartridge weight
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
Unit weight:
  • 0.25 kg (0.55 lb) A
  • 0.27 kg (0.60 lb) B
  • 0.29 kg (0.65 lb) C l
  • 0.24 kg (0.53 lb) F h
Internal wetted surface area:
  • 141 cm² (21.8 in²) A b c l
  • 161 cm² (24.9 in²) F h
RV10-26_Flow-Pressure(2022-02-24)
RV10-26_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 33.9 to 36.7 N-m (25 to 27 ft-lb)
  • 66.7 N-m (50 ft-lb) Maximum allowable
Adjuster cap torque:
  • 32.5 to 35.3 N-m (24 to 26 ft-lb) H-style plug
Orientation restriction:
  • None
Seal kit:
  • SK10-2X-B X = n, v, P
  • SK10-2X-M X = NC, VC
  • SK10-2X-O X = U
RV10-26_Order(2022-02-24)

Model Options

RV10-26F-H-J-R/S
F Adjustment Option
CODE
DESCRIPTION
A
1/4" Hex Allen Head
B
1-1/2" Diameter Aluminum Knob with Aluminum Lock Knob
C
1/4" Hex Allen Head with Cover Cap
F
Factory Preset Non-Adjustable
H
Factory Preset Hidden Adjustment
L
1/4" Hex Allen Head with Cover Cap and Lockwire Holes
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
2B
Aluminum BSPP 1/4" (2)
3B
Aluminum BSPP 3/8" (3)
4B
Aluminum BSPP 1/2" (4)
4BD
Ductile Iron BSPP 1/2" (4)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
04
6.9 to 27.6 bar (100 to 400 psi) Spring Range
15
10.3 to 103.4 bar (150 to 1500 psi) Spring Range
30
27.6 to 206.8 bar (400 to 3000 psi) Spring Range
S Setting
CODE
DESCRIPTION
MXXX
Spring Setting in XXX bar
XX
Spring Setting in XX psi (x 100)