D343H, D343Y, D341H PN6 ~ PN40 multi-level hard-seal butterfly valve installed in the petroleum, chemical, food, medicine, textile, paper, water and electricity, ships, water supply and drainage, smelting and other systems , In all water, gas, oil, semi-fluid and solid powder pipelines and containers used as regulation and closure, can be installed in any horizontal or vertical pipelines. D343H Turbine metal hard sealing butterfly valve than the soft rubber sealing butterfly valve to help long life, the valve is usually carbon steel or stainless steel.
Nominal diameter DN50 ~ 2000mm
Nominal PN0.6 ~ 4.0MPa
Temperature -40 ℃ ~ 570 ℃
Suitable medium water, oil, steam, gas, acid, alkali and other
Manufacturing standards GB / T 122387-89
Flange standard GB9113-2000, GB17241.6-1998
Construction length standard GB12221-89
Test standard GB / T 13927-92