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Onyx Valve Series CHP
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Onyx Valve Series CHP


The Series CHP pinch valves from Onyx Valve Company are designed for superior performance and reliability in a wide range of industrial applications. Featuring a pre-pinched port single pinch mechanism, stainless steel internal parts, and the option for automation, these valves offer precise control, easy operation, and long-lasting durability.

With a linear throttling characteristic, high efficiency stainless steel ACME stem, and drop-tight closure, the Series CHP pinch valves deliver exceptional performance in various process control applications. The simple, rugged cast iron construction ensures dependable operation even in demanding environments.


  • Pre-pinched port single pinch mechanism for precise control
  • Stainless steel internal parts for corrosion resistance and durability
  • Can be automated for remote operation and process integration
  • Available with limit switches for position indication and control
  • Low pressure drop for efficient flow control
  • Linear throttling characteristic for accurate process control
  • No packing for reduced maintenance and increased reliability
  • Drop-tight closure for leak-free operation
  • High efficiency stainless steel ACME stem for easy operation
  • Simple, rugged cast iron construction for long-lasting performance


  • Process control in various industries
  • Flow control and regulation
  • Throttling and isolation
  • Corrosive and abrasive media handling
  • Slurry and viscous fluid control


  • Valve sizes up to 10" with cast iron housing (ASTM A48, Class 35)
  • Valve sizes 12" and up with ductile iron housing (ASTM A536-80, Class 65-45-12)
  • ANSI STD 125/150 lbs flanges
  • Optional ANSI STD 300 lbs flanges



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