Decompression valves is composed by the main valve, needle valve, pilot valve, ball valve and piezometer, etc.

 Decompression valves is controled by polit valve and automatically drived by the pressure difference of the Upstream and downstream of pipline.

 Valve is used for pressure relief for circulating system of high-rise structures, avoiding system danger due to excessively high hydraulic pressure.

 It maintains upstream water pressure at preset pressure and ensure water supply.

Technical Specification/技術(shù)規(guī)格

- Size/規(guī)格：DN20-DN800
- Diaphragm type/隔膜式：DN20-DN500； 
- Piston type/活塞式：DN600-DN800
- End/連接法蘭：ISO PN6/10/16 
- Work Pressure/工作壓力：PN10/PN16 
- Work Temperature/工作溫度：0℃～80℃ 

Structure Character/結(jié)構(gòu)特點(diǎn)

- Full Bore Design, low fluid resistance and large flow. 
- Easy to adjust and reset, Large operating range. 

Main Components and Materials/主要零件和材質(zhì)

Dimensions/尺寸