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[TECHNOLOGY] Installation method of ball valve 17-07-08
Ball valve installation: 1) this type of valve shall be installed in the horizontal or vertical direction of the pipe. 2) before installation, according to the required signal (electricity or gas) to carry out the whole machine test (to pre ......
[TECHNOLOGY] Sealing specification of ball valve 17-07-08
The main valve seat seal material is polytetrafluoroethylene (PTFE), are inert to chemicals almost all of it, and has a small friction coefficient, stable performance, easy to aging, temperature range and excellent sealing characteristics of ......
[TECHNOLOGY] How can the valve packing prevent leakage? 17-07-08
Causes: 1, packing is not installed, there is a small generation, spiral winding, poor joints, tight, loose and other defects; 2, filling selection is not, non resistance to medium corrosion, not high pressure or vacuum valve, high temperat ......
[TECHNOLOGY] Ball valve overview and working principle 17-07-08
Ball valve overview: Standard GB/T21465-2008 valve terminology is defined as: open and close parts (spheres) driven by the stem, and around the axis of the stem to rotate the valve.. The ball valve is mainly used for cut off or connected to ......
[TECHNOLOGY] Maintenance technology of ball valve 17-07-08
Ball valve repair: Longer service life and maintenance free period will depend on several factors: normal working conditions, maintaining a consistent temperature / pressure ratio, and reasonable corrosion data. Be careful: - in the closi ......
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