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  • Posted: 03/10/2015 04:03:15   Hits: 826
    With large programs being put into construction, valves are widely used in power, petroleum, chemical industry, urban supply and drain water system. Particularly, butterfly valves have large us...
  • Posted: 03/04/2015 03:03:36   Hits: 701
    Rubber lined valves have both cutting-off and flow regulation performance. Rubber line valves are convenient for on-off without influence on flow, ensuring the repeatability of flow. The valves open...
  • Posted: 02/25/2015 03:02:46   Hits: 773
    Pneumatic tefulong butterfly valves use disc with ball sealing surface cylinder packed by PTFE, having convenient operation, rigorous sealing performance and long service life. The butterfly valves ...
  • Posted: 02/10/2015 02:02:13   Hits: 799
    Valves are a kind of hardware products in common use. There are definite requirements for valves before or during assembling. Otherwise, valves having been assembled cannot show their excellent prop...
  • Posted: 02/03/2015 03:02:31   Hits: 977
    Appropriate connections between valves and pipes have direct influence on possibility of valves leakage.   Connections in common use include flanged connection, wafer connection, butt weldi...
  • Posted: 01/26/2015 04:01:47   Hits: 804
    Three-eccentric metal hard seal butterfly valves are a kind of advanced butterfly valves. The valves use body and seat as connection. The sealing face of seat on the butterfly valves is made of bead...
  • Posted: 01/08/2015 02:01:46   Hits: 853
    Soft and hard seal are able to complement each other. The seal ability of soft one is better than hard one, however, hard seal now can also meet some requirements. Soft seal has better sealing abili...
  • Posted: 12/30/2014 09:12:42   Hits: 780
    The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance o...
  • Posted: 12/17/2014 04:12:53   Hits: 943
    Butterfly valves, also called as flap valves, are a kind of valves having simple structure. Butterfly valves can also be used for low pressure pipelines to regulate media. The disc of butterfly valv...
  • Posted: 07/14/2014 02:07:44   Hits: 1143
    Based on structure, ball valves are classified into following types:   1. Floating ball valves The ball of floating ball valves is floating. Under the pressure of medium, the ball can disp...
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News & Events
2018.07.23
The definition, characteristics and classification of butterfly valves
The definition, characteristics and classification of butterfly valves A butterfly valve is a rotary valve which is open or closed by rotating a disk-shaped, circular or rectangular closure member fo...
2018.05.30
Xinhai is going to participate in the Valve World Conference & Expo 2018
Xinhai Valve is going to participate in the 11th Valve World Conference 2018 in Germany, and our booth number is 3D01. You are very welcome to come and negotiate valve business with us. Exhibition in...
2017.08.30
What are Thread Valves?
A thread valve is the valve with the thread and can be classified into the internal thread valve and the external thread valve. This kind of valve is connected to the pipeline with the threaded connec...
2017.08.23
An Introduction of Swing Check Valves
A check valve is divided into the swing check valve (rotating around its center of gravity) and the lift check valve (moving along the axis). The check valve is one kind of the automatic valves, mainl...