HOERBIGER ::

Diaphragm Cylinder

The more reliable method of energy saving

pneumatically activated / spring activated

HOERBIGER offer an improved series of modular diaphragm cylinders for the On/Off control of reciprocating compressors. The models differ by

  • diaphragm size
  • control mode, and
  • design of seal gas housing.  


Universally applicable and flexible
By using only corrosion proof material HOERBIGER diaphragm cylinders are suited to any process application. The modular design enables optimal adaptation to changed process conditions.

Easy to maintain
The high grade sealing system is almost maintenance free. Preassembled and tested sealing cartridges make maintenance easier.

Safe and environmentally friendly
HOERBIGER diaphragm cylinders have an inert gas connection as standard. The metal bellow version guarantees absolute gas tightness. Equipped with the optional position indicator also comply with the API standard.  


Advantages compared to other unloading systems:

  • essentially lower consumption of control media   
  • lower life-cycle costs   
  • almost no stick/slip effect   
  • ideal system solution by perfect matching of valve, unloader and diaphragm cylinder