概述橡膠瓣逆止閥主要由閥體,閥藍及橡膠瓣三種主要零件組成。其中橡膠瓣由鋼板,鋼棒及強化尼龍布做襯底,外層披翟橡膠制成,閥瓣開關壽命可達100萬次。OverviewRubber disc non-return valve is mainly composed of the three major parts including body, bonnet and rubber disc. Made o......
Rubber disc non-return valve is mainly composed of the three major parts including body, bonnet and rubber disc. Made of lined steel plate,steel rod and reinforced nylon cloth, and coated with rubber outside, its disc boasts of a service life of l million times of open and close. This valve takes a full flow area type to effect little water head loss, no sundries de-posited, and easy servicing etc.
This valve is mainly applicable for water supply and drainage system,mounted at the outlet of pump to prevent damage caused by backflow and water hammer. This valve can also be mounted on the by-pass pipe of in-let and outlet pipe to prevent water in reservoir back flowed into water sup-ply system.
主要技術性能Main technical feature
工作壓力:1.0MPa、1.6MPa
Supreme working pressure:1.0MPa、1.6MPa
密封試驗壓力:1.1MPa、1.8MPa
Sea Test Pressure Psl:1.1MPa、1.8MPa
閥體試驗壓力:1.0MPa、2.4MPa
Valve Test Pressure Ps:1.0MPa、2.4Mpa
主要零件材質Main Parts and Materials
零件名稱
Name
閥體、閥蓋
Valve body Bonnet
閥瓣
Disc
材料
Material
灰鑄鐵、鑄鋼、球墨鑄鐵
Gray casting iron、Cast steel、
Spheroidal Graphite Cast lron
鋼材+強化尼龍布+N.B.R.
Steel+intensive
Nylon cloth+N.B.R.
主要外形尺寸及連接尺寸Main External Dimensions and Connecting Dimensions