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Zigtoo (China) Fluid Control Technology Co., Ltd. is a wholly foreign-owned enterprise dedicated to refrigeration systems, HVAC systems
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comparison between butterfly valve standard and flange standard
BS standard uses BS-1560-CLASS flange which is consistent with ASME-B16.5 flange and BS-4504PN flange can also be used.
The difference between cast valves and forged valves
Cast valves are valves made by casting. Generally, the pressure rating of cast valves is relatively low (such as PN16,PN25, PN40, but there are also high-pressure ones, which can reach 1500Lb, 2500Lb), and most of the calibers are above DN50.
