Norgren Herion XSz Manual Download Page 1

Damping modules

2/2 directional control valve, normally open or closed 

for soft clutch engagement

Compact design 

Simple installation

Reduction wear and tear

Noise reduction

Soft start valve can be used for soft engagement of a
pneumatically operated clutch on presses. It can be directly
flanged on port 1 (P) of the safety valve XS/XSz 32 and
with an adapter plate on the XS/XSz 50. It has a
interchangeable bypass orifice to adapt to individual
operating conditions. 

Technical data

Operating pressure:

2 to 8 bar

Fluid:

Filtered and lubricated air 

1)

Fluid temperature:

- 10 to + 40 °C 

2)

Ambient temperature:

- 10 to + 60 °C 

2)

Materials: Housing: Aluminium alloy

Seals:

NBR (Perbunan)

AU (Vulkolan)

3 (R)

1 (P)

12 (Z)

2 (A)

1 (P)

3 (R)

1 (P)

12 (Z)

2 (A)

1 (P)

Symbol for Cat. No. 1020113

Symbol for Cat. No. 1020141

Soft start („soft clutch“) valve

1)

Oil recommendation: Shell Hydrol DO 32, ESSO Febis K 32 (as of July 1992) or comparable oils with DVI 
values < 8 (DIN 53521) and ISO viscosity class 32-46 (DIN 51519).

2)

To secure the safety function of the valve at subzero temperatures, it is important that the air is dry 
enough to prevent an icing of the valve.

Ordering example:
To order, quote part number, e.g.
1020113.0700 for nominal size 32 soft start
valve for XS/XSz 32 valve, soft starting from 2
bar up.

Caution:
For mounting soft start valve on a 
XS/XSz 50 valve an adapter flange plate
(Cat.-No. 0557164) is necessary. It has to be
ordered in addition to the soft start valve.

Our policy is one of continued research and development. We therefore reserve the right

to amend, without notice, the specifications given in this document.

N/** 5.11.041•01

03/01

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