1. Conventional butterfly valve pressure range
General butterfly valve: the nominal pressure is usually PN10~PN16 (corresponding to 1.0~1.6MPa), which is suitable for general industrial scenarios (such as ventilation, water supply and drainage systems).
Medium-pressure butterfly valve: some models (such as D41W ventilated butterfly valve) can reach PN63 (6.4MPa), used in chemical industry, electric power and other medium-pressure scenes Medium pressure butterfly valve: some models (such as D41W ventilating butterfly valve) can reach PN63 (6.4MPa), used in chemical industry, electric power and other medium pressure scenes.
2. High-pressure butterfly valve
High-pressure design: by strengthening the structure and sealing materials, some butterfly valves can reach nominal pressure of PN100~PN160 (10~16MPa), for example Welded ventilated butterfly valve.
Special high-pressure scenarios: in the petroleum and metallurgical fields, high-pressure butterfly valves can withstand working pressures of ≤80MPa, but require customised design.
3. Ultra-high pressure butterfly valve
Extreme working conditions: for special needs (such as ultra-high pressure water cutting system), the butterfly valve can withstand ≥100MPa pressure through high-strength alloy materials and multi-layer sealing technology.
