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
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 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

Cartridge 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
VC16-2
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