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Control Seal Company Profile Wednesday, September 14, 2016 ControlSeal ranks among the world leading manufacturers of rising stem ball valves and double block and bleed valves. The present success of the company is based on a long tradition of...

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Double Black and Bleed Valves (DDBV) Wednesday, July 20, 2016 Control Seal has developed the Double Block and Bleed dual expanding Plug Valve (DBBV) due to market demand for a non- friction double tight shut-off valve....

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Rising Stem Ball Valves (RSBV) Wednesday, July 08, 2015 Control Seal non-contact Rising Stem Ball Valves have a single-seat non-friction design that is able to operate and has proven an exceptional long life span under extreme...