It’s called the pilot-operated relief valve, and it sits atop the pressurizer attached to the Unit 2 reactor of Three Mile Island. It is often referred to as PORV, and something went very ...

The Anderson Greenwood Series 5100 pilot-operated pressure-relief valve is designed for over-pressure protection of economizers in fossil-fired power plants. The Anderson Greenwood Series 5100 ...

balanced spring-operated relief valves (balanced using a bellows or balanced piston), rupture discs, pilot-operated relief valves, and rupture-pin relief devices. Combinations of these devices may ...

Nothing works better for such situations than a driver-operated dump valve. Flip a switch, down go the air bags. A manual (“pilot-operated,” as it’s often called) dump valve is simple to ...

ROSS CONTROLS is proud to announce the introduction of its High-Relief Pilot-Operated Regulator for high-flow applications. This multi-purpose regulator is an asset to systems requiring high relief ...

MONTVILLE, N.J.--(BUSINESS WIRE)--Marotta Controls, a rapidly growing aerospace and defense supplier, announced it has upgraded its motor operated pilot valve (MOPV) used in aqueous film-forming ...

The failure of a pilot-operated relief valve in the primary circuit was a key factor in the partial meltdown of a reactor at the Three Mile Island plant in the US in March 1979, and which led to ...

Some veterans of the war on terror are taking a new approach to helping each other heal. Retired Delta Force operator Derek Nadalini and nonprofit CEO Pack Fancher ...

Many combined cycle power plants are being operated as peaker plants, rather than as baseload units. That can pose a problem for economizer safety valves. Pilot-operated safety valves offer several… ...