Multifunctional noiseless check valve is utilized in high building,water outlet ofpressurzation-water delivery-pump.when pump is open,valve automatically open slowly;when water pump stop,valve realize two stages close-quick close,that can utterly eliminate water hammer.
1.it is one body multipurpose valve can replace butterfly valve,ball valve,gate valve inexit of water pump.
2.No shock,no niise and stable,safe and reliable performance.
3.small bulk,light weight,simple structure.
4.good seal result,anti-friction,long working life
