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What are the types of vacuum ball valves?
- The utility model can be used in the high vacuum condition and can be used under the low voltage system, and the advantages of positive and negative pressure are sames
Who knows why the ball valve is divided into a piece of ball valve, two pieces of ball valve, three pieces of ball
- There is, of course, a difference,This is according to the structure of the valve body,The difference between them is whether they are easy to disassemble, for example, the three piece of ball valve is easiest to disassemble.s
Ceramic ball valve, regulating valve standard?
- You can refer to the specific national standardss
Electric ball valve installation need to pay attention to what?
- High valve valve installation tips using general notes 1, the single pole light to put Ji GUI lice before installing the valve should be cleaning the dust inside the pipe with stiff, welding slag and other impurities; connected with the valve connection standard standards 2, pipeline, operating conditions and valve performance.s
One piece ball valve, two piece ball valve, three piece ball valve, respectively, under what circumstances?
- First of all, the difference between a ball valve and two chip, three chip ball valve is a ball valve flow, the internal structure of the necking design belongs to the design, the same diameter ball valve products must be smaller than the other two kinds of ball valves flow more. Compression capacity is not as good as two, but better than the three chip. A ball valve has the advantages of low cost, low price; the two valve is the three products in the most excellent in resistance and flow, the valve inside is preferred; features three ball valve design structure is easy to install, because the three ball valve can be installed by dismantling during installation, so in different pipeline even some other connections are completely no problem, fast loading, thread, flange, welding and so on, so the market is the most complete connection number of ball valve, especially when welding, a chip ball valve and the two valve can not be opened due to installation, want to welding in the pipeline it would be easy to the inside of the PTFE (similar to plastic) in a burnt out, the best choice at this time is three piece ball valve. But the disadvantage of three piece ball valve is the poor compression ability.s
To help explain the meaning of the ball valve Q11H-16H, combined with the actual, such valves have wood?
- JB T308-2004 valve model preparation method and "GB1048-2005 pipe element nominal pressure definition and selection", there are various types of valve interpretation:Q11H-16HQ: valve type: (Q) ball valve1: connection form: (1) internal thread1: structure form: (1) through flow channelH: sealing surface or lining material: (H) Cr13 stainless steel16: pressure code: (16) 1.6MPaH: body material: (H) Cr13 stainless steels
Structure design principle of fire ball valve
- The purpose of fire protection structure design of valve seat is:(1) effective guarantee in the fire accident, the upstream pressure medium as little as possible into the body cavity through the valve seat, thereby causing internal leakage and leakage. Ensure that fire accidents are not expanded by fire before the firemen arrive at the scene of the accident. After the firemen arrive at the scene, fire equipment can be used to quickly suppress the fire and eliminate fire accidents.(2) to make the structure of the product meets API6D specifications. Fire proof can be obtained through fire test.Fireproof design of valve seat:Set graphite in metal fire valve seat and valve body sealing rings; sealing set fireproof metal in the metal valve seat and ball room. The structure is shown in Figures 1 and 2.s
How much pressure can the flange ball valve withstand?
- How many can, each kind of pressure specification has the different material quality, the thickness request, the ball valve can also use in the high pressure class.s
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