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.

Ratings

Pressure Ratings
Pressure rating
344.7 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
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 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

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
0.25 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

Performance

RV10-26_Flow-Pressure

Dimensions

RV10-26_Dim

Materials

Materials

Cartridge: Weight: with Adjustment Option A: 0.25 kg. (0.55 lb.) B: 0.27 kg. (0.60 lb.) C,L: 0.29 kg. (0.65 lb.) F,H: 0.24 kg. (0.53 lb.) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N seals standard. Anodized aluminum knobs. Optional polyurethane seals recommended for pressures over 240 bar (3500 psi).

Ported Body: Weight: 0.16 kg. (0.35 lbs.) Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.

Installation Specifications

Cavity
VC10-2
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

Accessories

Seal kit
SK10-2X-B X = n, v, P
SK10-2X-M X = NC, VC
SK10-2X-O X = U

Order code

POSITION
CODE
DESCRIPTION
RV10-26F-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
J
U
PPDI Urethane
R
Spring
R
04
6.9 to 27.6 bar (100 to 400 psi) Spring Range
R
15
10.3 to 103.4 bar (150 to 1500 psi) Spring Range
R
30
27.6 to 206.8 bar (400 to 3000 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RV10-26_Order