INTRODUCING THE BP-LF691...
The BP-LF691 is a piston-sensed low-flow back pressure regulator for gas or liquid applications. The gas version includes a thermoplastic seat, whilst the liquid version features metal-to-metal seating. In addition to Stainless Steel, it is available in a range of materials including Titanium, Vespel® and Hastelloy®.
The BP-LF691 accurately controls inlet pressure and vents excess pressure back via the threaded NPT, BSP or MP outlet port of up to ½".
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)
Design Proof pressure
150% max WP
In accordance with ANSI/FCI 70-3