• BP8 Back Pressure Regulator, Brass, 0-100 PSIG BP8-2F51D9G111A

GO Regulator BP8-2F51D9G111A BP8 Back Pressure Regulator, Brass, 0-100 PSIG

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Shipping Weight:
4.00 LBS

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The BP-8 Series is designed to control back pressure at low to moderate pressure ranges with relatively high flow. While designed primarily for instrumentation systems and similar to the PR-7, the BP-8 is also suitable for pilot plant, research and development activities. Special diaphragm and spring combinations give the user a selection of pressure ranges that are near atmospheric. The glass filled PTFE / stainless seat assembly gives tight shut off even at lower flows for most applications.

The 316 stainless steel body assembly provides service for most chemical environments and brass models are available for those applications not requiring that type of corrosion resistance. If special requirements demand other materials of construction, please contact the factory.

Typical Applications

  • Instrumentation systems
  • Pilot plants
  • Air compressors

Features and Benefits

  • Pressure control of large flows
  • Standard Stainless Steel diaphragm, PTFE faced


  • Panel mounting
  • Extra ports
  • ⅜" FNPT, ½" FNPT, ¼" Tube Weld, ¼" Pipe Weld, ½" Tube Weld

Product Specifications

Body MaterialBrass, Stainless Steel diaphragm
Port ConfigurationF
Process Port Type½" FNPT (¼" FNPT gauge ports)
Cavity Finish< 25 Ra
Actuator MaterialViton
Flow Coefficient1.2
Control Range0-100 PSIG
Diaphragm TypeStandard diaphragm
Diaphragm Facing/Backing MaterialPTFE/Metal backing
Cap AssemblyStandard, Stainless Steel
OptionsEB33 (oxygen cleaning)

Literature & Docs