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

RV16-26

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

Overview

Description

RV16-26X is a screw in, cartridge style, pilot operated (two stage), spool type relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis

Operation

The RV16-26X 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

Ratings

Pressure Ratings
Pressure rating:
  • 275.8 bar (4000 psi)
Proof pressure:
  • 620.5 bar (9000 psi)
Burst pressure:
  • 1275.5 bar (18500 psi)
Crack pressure defined:
  • Pressure evident at 7.6 lpm (2 gpm)
Reseat pressure:
  • Nominal 90% of crack
Relief pressure range:
  • 27.6 to 344.7 bar (140 to 3500 psi) From zero to maximum control current
Flow Ratings
Flow rating:
  • 302.8 lpm (80 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 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 with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406

Properties

Unit weight:
  • 0.58 kg (1.28 lb) A
  • 0.61 kg (1.34 lb) B
  • 0.63 kg (1.38 lb) C l
  • 0.71 kg (1.56 lb) F h
Internal wetted surface area:
  • 273 cm² (42.3 in²) A b c l
  • 308 cm² (47.7 in²) F h

Performance

RV16-26_Flow-Pressure

Dimensions

RV16-26_Dim

Installation Specifications

Cavity:
Cartridge installation torque:
  • 62.7 to 73.4 N-m (46 to 54 ft-lb)
H style plug torque:
  • 33.9 N-m (25 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK16-2X-B X=seal options

Order Code

POSITION
CODE
DESCRIPTION
RV16-26F-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
12T
Aluminum SAE 12
H
16T
Aluminum SAE 16
H
12TD
Ductile Iron SAE 12
H
16TD
Ductile Iron SAE 16
H
6B
Aluminum BSPP 3/4" (6)
H
8B
Aluminum BSPP 1" (8)
H
8BD
Ductile Iron BSPP 1" (8)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
03
27.6 to 344.7 bar (140 to 300 psi) Spring Range
R
06
27.6 to 344.7 bar (230 to 600 psi) Spring Range
R
15
27.6 to 344.7 bar (530 to 1500 psi) Spring Range
R
35
27.6 to 344.7 bar (1200 to 3500 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RV16-26_Order