MESC for butterfly valves.There's a lot of Shell designation numbers and documents that undergo this acronym.

Sum-up standards applicable for butterfly valves (design, face-to-face, testing,etc..)? Is there any comparison between American and DIN standards?

Vendor leads/information for butterfly valves with a system design of 2300F at 5 PSIG and operating at 1600F at 3 PSIG?

butterfly Valve,But the diameter of the valve should be 180mm.The valve is used to control the flow.

Cast Iron butterfly valves (4"-84") on a SS316L piping. In order to avoid galvanic corrosion I have specified all valves to be rubber lined on interior surfaces and flange faces with Neoprene to a thi

36" soft seated butterfly valves. When the valves were disigned for vent gas compressor suction valves the styrene content was not taken into consideration so the TFE seat ring with viton o-ring are n

Shrinkages apprear as a Dark Paches or Streaks in Radiograph but am unable to visualize as to how the cross section would appear.

One is 12" tall x 8" wide, the other is 9" tall x 8" wide. Both are sealed plastic units with water flow.