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  • Posted: 06/20/2016 02:06:06   Hits: 33
    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: 75
    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: 135
    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: 132
    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: 185
    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: 203
    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. ...
  • Posted: 03/12/2016 04:03:31   Hits: 252
    Electrochemistry corrodes metals in different forms. It does not only function between two kinds of metals, but also can cause potential difference due to differential solubility of solution, differ...
  • Posted: 03/04/2016 04:03:56   Hits: 217
    For rising stem wedge gate valve, connection between stem and core loses efficacy which caused by corrosion, abrasion or improper operation during valve on-off, then, the core falls off. If the valv...
  • Posted: 01/18/2016 05:01:09   Hits: 400
    Corrosion on valve body is considered that the metal materials are destructed under the environment of chemical or electrochemical environment. The corrosion is caused by spontaneous interaction bet...
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News & Events
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 valve, mainly...
2017.07.19
2017 China (Zhengzhou) International Water Equipment and Technology Exposition
Event: 2017 China (Zhengzhou) International Water Equipment and Technology Exposition Venue: Central China International Expo Center (No.210, Zheng Bian Road, Zhengzhou City, Henan Province) Date: 201...
2017.07.10
Comparisons of Pneumatic Ball Valves and Electric Ball Valves
(1) Pneumatic ball valves The pneumatic ball valve consists of the ball valve and the pneumatic actuator. It generally needs to be used in conjunction with accessories including the magnetic valve, ai...