Rexroth Solenoid Valve
Rexroth Valve DBW
  • Description
  • Technique Feature
  • Specification
  • Applied Range

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Data Sheet of DBW Series

REXROTH Type Code of DBW Series

 

 

Product description

General

Pressure valve type DBW is a pilot-operated pressure relief valve. It is used for limiting the operating pressure.

The pressure relief valves (DBW) basically consist of the main valve (1) with main spool insert (3) and pilot control valve (2) with pressure adjustment element.

Pressure relief valve type DBW

The function of this valve is basically the same as that of valve type DB. The unloading of the main spool (3) is, however, achieved by controlling the mounted directional spool valve (16).

 

Pressure relief valve with switching shock damping (sandwich plate), type DBW.../..S6...R12

The opening of the connection from B2 to B1 is delayed by means of the switching shock damping valve (17). Pressure peaks and acoustic decompression shocks in the return line are thus avoided. It is installed between the pilot control valve (2) and the directional valve (16).

The degree of damping (decompression shock) is determined by the size of the nozzle (18). Nozzle Ø1.2 mm (ordering code ..R12..) is recommended.

 

Technical data

general

Size

10

16

25

32

 

 

DB.. 15

DB.. 20

DB.. 25

 

Weight

Subplate mounting

DBW...

kg

4.05

4.95

5.85

DBWC...

kg

2.65

DBWC 10 or 30 ...

kg

2.95

Threaded connection

DBW...G

kg

6.75

6.65

6.55

6.45

6.25

Installation position

any

Ambient temperature range

NBR seals

 

°C

-30 … +50

FKM seals

 

°C

-15 … +50

Minimum stability of the housing materials

with subplate mounting and DBWC.. valves

 

Housing materials are to be selected so that there is sufficient safety for all imaginable operating conditions (e.g. with regard to pressure resistance, thread stripping strengths and tightening torques).

 

Features

For subplate mounting: porting pattern according to ISO 6264-AR-06-2-A (NG10), ISO 6264-AS-08-2-A (NG25), ISO 6264-AT-10-2–A (NG32)

For threaded connection

For installation in block designs

4 adjustment types for pressure adjustment, optionally 
- Rotary knob
- Sleeve with hexagon and protective cap
- Lockable rotary knob with scale
- Rotary knob with scale

5 pressure ratings

Solenoid-operated unloading via built-on directional spool valve or directional poppet valve

High-power solenoid

Explosion-protected solenoid (upon request)

Switching shock damping, optional

 

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