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This 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.
BP-8 High Flow Low Back Pressure Regulators
BP-8 High Flow Low Back Pressure Regulators - 2
Unit of Measure
1 

Item #

Item Name

Operating Temperature

Inlet and Outlet Connections

Flow Coefficient (Cv)

Control Range

List Price

BP8-1A11D9C111 N/A BP-8 0 to 10 Pounds per Square Inch Gauge (psig) Control Range and Fluorocarbon (FKM) Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 10 psig Quote
BP8-1A11D9E111 N/A BP-8 0 to 50 Pounds per Square Inch Gauge (psig) Control Range and Fluorocarbon (FKM) Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 50 psig Quote
BP8-1A11L9C121 N/A BP-8 0 to 10 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 10 psig Quote
BP8-1A11L9D111 N/A BP-8 0 to 25 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 25 psig Quote
BP8-1A11L9G111 N/A BP-8 0 to 100 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 100 psig Quote
BP8-1A11LKC111F N/A BP-8 0 to 10 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 0.7 N/A 0 to 10 psig Quote
BP8-1A41L9G112 N/A BP-8 0 to 100 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 100 psig Quote
BP8-1A51L9C111 N/A BP-8 0 to 10 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 10 psig Quote
BP8-1A51L9E111 N/A BP-8 0 to 50 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 50 psig Quote
BP8-1A51L9E118 N/A BP-8 0 to 50 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 50 psig Quote
BP8-1A51L9I111 N/A BP-8 0 to 250 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 250 psig Quote
BP8-1A51L9J112 N/A BP-8 0 to 500 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 500 psig Quote
BP8-1AJ1L9I111 N/A BP-8 0 to 250 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 1.2 N/A 0 to 250 psig Quote
BP8-1D51LLI111 N/A BP-8 0 to 250 Pounds per Square Inch Gauge (psig) Control Range and Glass Filled Polytetrafluoroethylene (PTFE)® Actuator Material High Flow Low Back Pressure Regulator N/A -40 to +250 ºF-40 to +121 ºC N/A 1/4 in. Female National Pipe Tapered (FNPT) N/A 0.4 N/A 0 to 250 psig Quote
Unit of Measure
1