Dresser's Mooney® has expanded its Slam Shut(TM) Valve line to include a 1in linear plug design and rotary design sizes to 4in. The 2in, 3in and 4in sizes can be integrated into a Flowgrid® Regulator or can stand alone.

The Mooney Slam Shut Valve is a unique pneumatically actuated device that provides accurate over and/or under downstream pressure protection. Its patent pending design guarantees a snap acting release of the latch only when designated set points are exceeded.

This eliminates costly "accidental shutoffs" from vibration or conditions other than over/under pressures. A positive shutoff is achieved instantly with zero pressure differential requirements and a reset can be completed with common hand tools.