Weir Valves & Controls is a critical service and isolation application and solution provider for the power generation, oil and gas exploration and general industrial sectors. The company s global reputation is based upon its capability to deliver engineering solutions that add value to the customer s process. Weir s control products include butterfly control valves, choke valves, control valves, desuperheaters, instrumentation, spring loaded and pilot operated safety relief valves, tank blanketing systems, thermal expansion compensators, turbine bypass valves, valve actuators and x-stream control valve. Its isolation products include 3-way valves, ball valves, butterfly isolation valves, check valves, gate valves, globe valves, isolation devices, subsea valves and trip valves. Weir Valves & Controls maintains headquarters in Salem, Mass.