Description Specifications Literature Description 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 Options Panel mounting Extra ports ⅜" FNPT, ½" FNPT, ¼" Tube Weld, ¼" Pipe Weld, ½" Tube Weld State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Body Material316L Stainless Steel, Stainless Steel diaphragmPort ConfigurationA StandardProcess Port Type¼" FNPT (¼" FNPT gauge ports)Cavity Finish< 25 RaActuator MaterialGlass filled PTFEFlow Coefficient0.4Control Range0-500 PSIGDiaphragm TypeStandard diaphragmDiaphragm Facing/Backing MaterialPTFE/Metal backingCap AssemblyTamper-proof, Stainless SteelOptionsPressure Test Certificate, Certificate of Conformity, & CMTR Literature & Docs Accessories