CPM Valve

CPM valve (Constant Pressure Modulating Valve) is a pneumatic sanitary pressure regulating valve that uses a diaphragm valve plug system to quickly respond to changes in medium pressure and accurately maintain a constant pressure on the inlet or outlet side of the pipeline. It is commonly used in sanitary fluid process systems.Mainly used in industries with high hygiene requirements such as dairy products, food and beverage, pharmaceuticals, and daily chemical products, installed after separators and heat exchangers (inlet constant pressure) or before filling machines (outlet constant pressure), it can stabilize process pressure, ensure filling accuracy, adapt to CIP online cleaning, and prevent medium contamination.

Common Types

  • CPMI-2 type: inlet side constant pressure regulation, suitable for pressure stabilization scenarios after separators and heat exchangers.
  • CPMO-2 type: constant pressure regulation on the outlet side, commonly used before filling machines to ensure accurate and consistent filling volume.
  • CPM-I-D60 type: Split valve body with inlet pipe, suitable for inlet constant pressure control with special pipeline layout.

Structural Advantages & Corresponding Benefits

  1. Double diaphragm stainless steel support structure

  • Special point:  Adopting PTFE/EPDM composite double diaphragm, supported by 12 stainless steel fan-shaped plates in the middle, the diaphragm is rigidly linked with the valve plug without any loose clearance.
  • Result:The pressure response time was shortened to 0.2 seconds, with no leakage in the seal, suitable for sterile conditions, and the service life was extended by 50%.

  1. Non dead angle self draining welded valve body

  • Special point: The valve body is bowl shaped and integrally formed, and the valve seat is welded to the valve body. The flow channel is seamless, and the inlet is designed in a tangential direction for quick drainage.
  • Result:There are no dead corners with residual media, CIP cleaning is thorough, bacterial growth is avoided, and disassembly and maintenance efficiency is improved by 40%.