Key words: valve, check valve, constant check valve
Introduction:
It is a new authorized water power control valve of our company, awarded the national patent.
It��s mainly available for service pipe on diesel pump and electric pump , to ensure pump sets to supply water at a rated head and flow, specially for preventing overloading at a low head and overloaded starting. It can be used for water supply and fire pump system in pipeline for auto-inspection and decompression running.
This valve is widely to use for water supply system such as daily, industrial and smelting and fire protection, and a multi parallel connection pump sets system etc. it��s a ideal valve for keeping pipeline safety and running high efficiency

Application:
It solves problems on application of pumps in the field of water industry.
1 Pump can be started at low axis power to decrease the drive start power
2 Pump can be worked under a huge of pressure diversification , enable working in a high efficiency for saving energy.
3 Pump can be worked under a huge of pressure diversification ,enable working as the model section situation for ensuring the suited drive equipment non-overloaded
4 Pump is injecting water to pipeline as the model section situation to ensure the suited drive equipment non-overloaded
5 Pump is injecting water to pipeline as the model section situation to ensure the suited drive equipment non-overloaded
6 When pump is stopped, ensuring pump and pipeline connection is cutoff to prevent water flowing back