Valves - Pressure Controls - Relief Valve - Piloted - Poppet Type with Reverse Check

RV10-28

RELIEF VALVE PILOT OPERATED U.S. PATENT 6,805,155 and 7,069,945

Overview

Description

The RV10-28X is a screw-in, cartridge style, pilot operated, relief valve with reverse free flow check valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response, low hysteresis, low leakage, low pressure override and reverse free flow features. The RV10-28X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1. Relief flow path from port 1 to port 2. Reverse flow from port 2 to port 1 occurs when pressure at port 2 is higher than pressure at port 1

Features

  • Variety of adjustment options; adjustments cannot be backed out of the valve.
  • Can be operated in relief valve mode or check valve mode.
  • Several pressure ranges available.
  • Hardened spool and cage for long life.
  • Fast response.
  • Industry-common size.

Ratings

Pressure Ratings
Pressure rating
289.6 bar (4200 psi)
Proof pressure
620.5 bar (9000 psi)
Burst pressure
1241.1 bar (18000 psi)
Adjustable pressure range
13.8 to 289.6 bar (200 to 4200 psi)
Crack pressure defined
Pressure evident at 7.6 lpm (2.0 gpm) attained
Reseat pressure
Nominal 90% of crack pressure
Crack pressure
2.1 bar (30 psi) Check valve mode
Approximate pressure increment per adjuster turn
98.6 bar (1430 psi)
Flow Ratings
Flow rating
113.6 lpm (30 gpm) Port 1 to 2
Maximum internal leakage
0.53 ml/min (10 drops/min) Max 80% of nominal setting
Other Ratings
Response
0.06 s RV to CV at 241 bar (3500 psi) 53 lpm (14 gpm)
0.3 s CV to RV at 241 bar (3500 psi) 53 lpm (14 gpm)
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
0.27 kg (0.59 lb)
Internal wetted surface area
187 cm² (29.1 in²)

Performance

RV10-28_Flow-Pressure

Dimensions

RV10-23_Dim

Materials

Materials

Cartridge: Weight: 0.59 kg. (0.27 lbs.) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and polyester elastomer back-ups standard. Optional polyurethane seals recommended for pressures over 240 bar (3500 psi).

Standard Ported Body: Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Adjustment Option Details: See adjustment options

Installation Specifications

Cavity
VC10-2
Cartridge installation torque
33.9 to 36.6 N-m (25 to 27 ft-lb)
Maximum allowable torque
66.7 N-m (50 ft-lb)
H style plug torque
33.9 N-m (25 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK10-2X-B X = seal option

Order code

POSITION
CODE
DESCRIPTION
RV10-28F-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
07
13.8 to 51.7 bar (200 to 750 psi) Spring Range
R
35
51.8 to 241.3 bar (751 to 3500 psi) Spring Range
R
42
51.8 to 289.6 bar (751 to 4200 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
RV10-28_Order