Cryogenic globe valves use valve stem pressure to make the sealing face of valve clack and make the sealing face of valve seat fit tightly to cut off mediums. They are forced seal valves. Cryogenic globe valves that Topper provides have the following features:
1. Flow direction of medium in a globe valve includes "low in and high out" and "high in and low out". The medium is allowed to flow in only one direction. The valve shall be installed in the right direction.
2. Cryogenic globe valves have structure of straight-through type, direct flow type and right angle type.
3. When a globe valve is open, and the opening height of valve clack is up to 25% ~ 30% of nominal diameter of the globe valve, the flow reaches the maximum which shows that the valve reaches the fully open position.
Product Details:
Design standard: BS 1873, API 602, BS 6364.
Length of structure: ASME B16.10.
Flange connecting end: ASME B16.5.
Butt welding connecting end: ASME B16.25.
Wall thickness: ASME B16.34.
Inspection and test: API 598.
Pressure and temperature rating: ASME B16.34.
Product scope: NPS 1/2 Inch - NPS 16 Inch, CL150 - CL1500.
Main body material: ASTM A352 LCB, ASTM A352 LCC, ASTM A352 LC3, ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3, ASTM A351 CF3M, ASTM A350 LF2, ASTM A182 F304, ASTM A182 F316, ASTM A182 F304L, ASTM A182 F316L, etc.
Drive device: handle, bevel gear, electric, pneumatic, etc.