Electric butterfly valve model letter representative
D941W-0.1C means: butterfly valve (D), operated type is electric (9), connection type is flange type (4), structure type is centerline type (1), valve body is directly processed (W), pressure rating It is PN0.01Mpa (0.1), and the shell material is cast steel (C).
D941H-16C means: butterfly valve (D), the transmission type is electric (9), the connection type is flange type (4), the structure type is centerline type (1), the sealing material is stainless steel (H), and the pressure rating is PN1.6Mpa (16), the shell material is cast steel (C).
The specification and meaning of the butterfly valve are clearly defined in the national standard GB/T 12238-2008 "Flange and Wafer Connection Elastic Seal Butterfly Valve".
Butterfly valve model compilation method (in order): For example, D343H-10C , ①D ②3 ③4 ④3 ⑤H ⑥10 ⑦C .
①Butterfly valve coding code: D means butterfly valve; BD thermal insulation butterfly valve, SD telescopic butterfly valve, TLD desulfurization butterfly valve, DH check butterfly valve, DKS fast butterfly valve, FDBD square shutter butterfly valve.
②Code of operation form: manual (omitted), 3 means turbine operation, 6 means pneumatic operation, 7 means hydraulic, 9 means electric;
③Code of connection method: 4 flange type, 6 welding, 7 waf type.
④Structural form code: 1 means centerline type, 2 means double eccentricity, 3 means triple eccentricity, 4 means variable eccentricity, 5 means single eccentricity.
⑤ Sealing material code: H stainless steel, X rubber, F polytetrafluoroethylene, FX composite rubber, M Monel, Y cemented carbide, W valve body directly processed.
⑥ Pressure grade code: 10=PN1.0Mpa, 16=PN1.6Mpa, 25=PN2.5Mpa, 40=PN4.0Mpa. PN is the code name for domestic pressure, and MPA is the unit of pressure.
⑦Shell material code: C cast steel, P stainless steel 304, R stainless steel 316, AL special alloy steel, Z cast iron, Q ductile iron, N nylon.
