Features and applications

1,Mainly used to cutting off or connecting media flow,also used to regulating.

2,Least flow resistance in all kinds of valves.

3,Thrust bearing reduces stem friction torque and ensures the stability of stem operating.

4,Elastic material  such as PTFE for seal ring results excellent sealing performance of valve seat.The higher the pressure is ,the better the sealing performance is.

5,Little damage for stem packing seal as no up-down action.

6,Good self-lubrication of materials like PTFE,results little friction loss and long work life.

7,Lower-loading stem and convex rank of stem head.Though the stem sealing is damaged by fire,the convex rank can form metallic contact with valve body.

8,Anti-static:Install spring during ball,stem and body,deriving static out.

Production standard

1,design and manufacture:GB12237-89,API608,API 6D,JPI 7S-48,BS5351,DIN3357.

2,flange size :JB/T74~90(JB74~90),GB9112~9131,HGJ44~76,SH3406,ANSI B16.5,JIS B2212~2214,NF E29-211,DIN2543.
3,face to face:GB12221-89,ANSI B16.10,JIS B2002,NF E29-305,DIN3202.
4,testing:JB/T 9092,API 598.

Established in 2012,Hangzhou Niuzhuo Valves Industrial Co., LTD. is a manufacturer and exporter that is concerned with the design, development and production of valves.
HZNZ is located in Hangzhou, with convenient transportation axxess.Covering an area of 13000 square meters, HZNZ now have about 100 employees, an annual sales figure that exceeds USD 7.7 million and are currently exporting 22% of our production worldwide.
All of our products comply with international quality standards and are greatly appreciated in a variety of diffrent markets throughout the world.
As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching Korea , Thailand, Malaysia,Mid East and more.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.