Services

  • Posted: 08/19/2016 05:08:05   Hits: 108
    Function of extraction check valve is quite singular. However, extraction check valve is indispensable for turbine.  Closing extraction check valve: when extraction check valve receives closing ...
  • Posted: 08/12/2016 04:08:02   Hits: 32
    Statistics show that leakage exists in about 20% of valves in industrial equipment. Caused direct economic loss accounts for about 50% of total losses. Meanwhile, valve leakage also causes pollution t...
  • Posted: 07/14/2016 05:07:12   Hits: 53
    Low temperature devices are constantly developed in China. The demands for low temperature valves are also gradually growing. To meet the demands of market economy developing, the structure of metal s...
  • Posted: 06/20/2016 02:06:06   Hits: 36
    More and more factories adopt automation control. Manual operation is taken place of by mechanical or automated equipment. The actuator is required for not only playing as interface interaction for co...
  • Posted: 06/08/2016 05:06:57   Hits: 59
    To build integrity management, fair and competitive market environment, strengthen the construction of quality and integrity system, ensure the valve product quality, safeguard the legitimate rig...
  • Posted: 06/08/2016 04:06:31   Hits: 77
    Following are the design, manufacture and inspection standards of our company.    Check Valve: API 6D 24th Specification for Pipeline and Piping valves  BS 1868-1975(R1990) Spec...
  • Posted: 05/16/2016 04:05:30   Hits: 152
    When valves used for sulfuric acid, hydrochloric acid, nitric acid, acetic acid, alkali (sodium hydroxide), ammonia (aqua ammonia), chlorine (liquid chlorine) and brine (seawater), alcohols, ketones...
  • Posted: 05/09/2016 05:05:05   Hits: 136
    The followings are the reasons causing defects on castings of valve.   1. Pore Pores are formed by gas which cannot escape and remained in metal. The internal wall of pore is smooth and c...
  • Posted: 04/18/2016 05:04:19   Hits: 190
    When use pipeline to transmit liquid or gas, the cost is only 1/3 of railway transportation and 2/3 of marine transportation. So, pipeline has already been highly developed for 100 years. The valves...
  • Posted: 04/13/2016 02:04:38   Hits: 218
    Before using sliver brazing to install valve, analyze the application to determine which valve is the most suitable for installation and keep in mind the service for which the valve is recommended. ...
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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...