BP-LF691

Back Pressure Regulator: Gas / Elastomeric Diaphragm / Max. Rating: 10 bar (145 psi) / Control Range: Up to 5 bar (75 psi) / Cv 0.1

Product Overview BP-LF691

The BP-LF691 is a piston-sensed low-flow back pressure regulator for gas or liquid applications. As standard, the gas version includes a PEEK™ seat, whilst the liquid version features 316SS seating. Alternatively, other seats are available to suit your application including Titanium, Vespel® and Hastelloy®.

The BP-LF691 accurately controls inlet pressure and vents excess pressure back via the threaded 1/2" NPT / BSP or 9/16" MP outlet port.

BP-LF691 Features

APPLICATIONS: • Chemical injection systems • Valve test rigs • Liquid sampling • Supercritical liquid

FEATURES: • Piston-sensing element • Range of seat materials • Optional air actuator • Low Cv (0.02)

BP-LF691 Specifications

Maximum Rated Inlet Pressure: 1,034 bar (15,000 psi)
Outlet Ranges: Up to 900 bar (13,050 psi)
Design Proof Pressure: 150% max. working pressure
Seat Leakage: In accordance with ANSI/FCI 70-3
Weight: 2.9kg (6.4lbs)