Municipal water valve

市政水务阀门is mainly divided into the following six categories and practical application scenarios:
1、 Cut off valve
Gate valve
Suitable for large-diameter water supply main pipes (DN300-DN2000), with fluid resistance<0.01MPa when fully open and fully closed, and mainstream materials are ductile iron and stainless steel
The clamp type structure saves space, and the D71X handle butterfly valve is suitable for DN50-DN1200 pipeline networks, with an opening and closing time of ≤ 30 seconds
2、 Adjustment and control category
Pressure reducing valve
200X diaphragm pressure reducing valve with an accuracy of ± 0.05MPa, suitable for pressure fluctuations in municipal pipeline networks ranging from 1.0-2.5MPa
Safety valve
The setting error of the burst pressure of the spring type safety valve is ≤± 3%, which complies with the GB/T 12241-2025 standard
3、 Check valve
Backflow preventer
LHS743X-16P stainless steel model has passed AWWA C511 certification, preventing sewage reflux pressure difference ≥ 0.07MPa^^
Air valve
ARID060SB buried combination valve automatic exhaust rate>15m3/min, eliminating water hammer effect
4、 Special function valve
Drain valve
The nuclear power grade drain valve can withstand temperatures up to 450 ℃ and has a leakage rate of less than 0.1%
Vacuum disruptor
To prevent negative pressure suction in the pipeline network, open the pressure to -0.02MPa with a response time of less than 0.5 seconds
5、 Material classification
Ductile iron valve: Z45X-16Q type concealed stem gate valve has a cost 35% lower than stainless steel and is suitable for conventional water supply
Stainless steel valve: 304 valve core valve resistant to chloride ion corrosion, with a lifespan of up to 30 years
6、 Classification of driving methods
Electric valve: Z945X-16Q type supports 4-20mA signal control and is compatible with SCADA systems
Pneumatic valve: D71X-16Q type compressed air drive, explosion-proof grade Exd Ⅱ BT4

选型建议