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Cartridge Valves - Pressure Control Valves - Relief - Pilot Operated - Spool Type

RV16-26

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

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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.

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:
  • 9.7 to 255.1 bar (140 to 3700 psi)
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)
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:
  • 0.58 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
RV16-26_Perf1(2023-04-05)
RV16-26_Dim(2023-04-05)
Cavity:
  • VC16-2
Cartridge installation torque:
  • 62.7 to 73.4 N-m (46 to 54 ft-lb)
H style plug torque:
  • 32.5 to 35.3 N-m (24 to 26 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK16-2X-B X=seal options
Housings:
RV16-26_Order(2023-04-05)

Model Options

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

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