Type & Specification Introduction of Ball Valves
Ball valve attached codes: V represents valve spool with a “V”shape structure, D represents low temperature, B represents heat preservation, P represents exocentric construction, U&S&DY represent top assembling type.
codes: Q represents ball valves.
actuation codes: 2 represents hydraulic actuation, 3 represents turbine actuation, 6 represents pneumatic actuation, 7 represents fluid actuation, 9 represents electric actuation, manual actuation with no code name.
Connection type codes: 1 represents internal thread, 4 represents flange connection, 6 represents welded connection, 7 represents double-clip connection.
Structural style codes:
1.Floating type: 1 represents straight-flow channel, 2 represents Y-type tee, 4 represents L-type tee, 5 represents T-type tee.
2. Stationary type: 0 represents hemisphere straight-flow channel, 6 represents cross tee flow channel, 7 represents straight-flow channel, 8 represents L-type tee, 9 represents Y-type tee.
Sealing material codes: B represents Babbitt Metal, F represents Fluororubber, F46 represents PTFE lining, H represents Stainless Steel, J represents Rubber lining, M represents Monel Metal, N represents Nylon Plastic, P represents Monel, Y represents Cemented Carbide, W represents valve body of direct machining.
Pressure grade codes: 16 represents the pressure of 16 kilogram(1.6Mpa), the maximum pressure can reach 64Mpa. 150LB represents valve pressure rating of American Standard. The maximum allowable pressure can be 2500LB
5K represents valve pressure rating of Japanese Standard, the maximum pressure is 63k.
Valve material codes: A represents titanium and titanium alloy, C represents carbon steel, I represents chrome-molybdenum steel, P18-8 & RMo2Ti both represent stainless steel, S represents plastic.