Directional control valves, direct operated, without electrical position feedback 4WRPH 6 ...-855

Description

Features

• Subplate mounting
• Machined valve contact surface; Porting pattern according to ISO 4401-03-02-0-05
• Pilot control valve for axial piston variable displacement pump, type A4VS with HS5 adjustment
• Control spool and sleeve in servo quality
• Actuated on one side, preferred position when switched off or if not released
• Control solenoid without position feedback
• Use for electro-hydraulic controls in production and test systems
• External control electronics via amplifier card or amplifier module

Product description

The valve type 4WRPH is a direct operated directional control valve without electrical position feedback.

Set-up

The valve basically consists of 2 main assemblies:

• Valve housing with control spool and sleeve in servo quality (1)

• Control solenoid with position transducer (2)

Type code

Technical data

Important information on hydraulic fluids:

• For further information and data on the use of other hydraulic fluids, please contact us.

• There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

• The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature.

• Flame-resistant – containing water:

- Maximum pressure differential per control edge 175 bar

- Pressure pre-loading at the tank port > 20 % of the pressure differential, otherwise increased cavitation

- Life cycle as compared to operation with mineral oil HL, HLP 50 … 100%

Diagrams/characteristic curves

measured with HLP46, ϑOil = 40 ±5 °C

Flow/signal function

Symbols/Circuit diagrams

Symbols

Flow characteristic
Version
„A“	„B“

Electrical connection

Dimensions

Version "A"

Dimensions in mm

Required surface quality of the valve contact surface

Version "B"

Dimensions in mm

Required surface quality of the valve contact surface

Valve mounting screws (separate order):

4 hexagon socket head cap screws ISO 4762 - M5 x 30 - 10.9-flZn-240h-L

Tightening torque MA = 7 Nm± 10 %, material no. R913000316

or

Hexagon socket head cap screws ISO 4762 - M5 x 30 - 10.9

Tightening torque MA = 8.9 Nm ± 10 %, not included in the Rexroth delivery range

Subplates according to data sheet 45052 (separate order)

Notices:

The dimensions are nominal dimensions which are subject to tolerances.

Accessories

Valve amplifiers for proportional directional valves

VT-MSRA1-1-1X

Valve amplifiers for proportional directional valves

VT-MSRA1-1-1X

• Component series 1X
• Analog, Modular design
• For valves: 4WRPH6...-2X...-855

• Data sheet

• Spare parts and repair

Downloads

Directional control valves, direct operated, without electrical position feedback Data Sheet | RE29027 | 2016-01-01 | English | PDF | 970k Product Groups: Direct operated Type 4WRPH