Worm Gear Flange Ball Valve/Válvula de bola de brida engranaje helicoidal

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Shanghai
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TT OR LC
Min Order Qty:
10 set
Supply Capability:
100 set/month

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Packaging & Delivery

Packaging Detail:Export plywood box,wooden case.
Delivery Detail:0-35 DAYS

Specifications

1) Function:control the flow rate 
2) Guarantee time:1 year 
3) Top quality and reasonable price 
4) Certificates:ISO9001,CE

Specifications: 
1) Sizes: 1/4 - 48" 
2) Pressure: 1.6-6.4Mpa 
3) Suitable temperature: -30 ~ 425 Deg. C 
4) Suitable medium: Water, air, oil products, corrosive liquid 
5) Body material: Carbon Steel, cast steel, cast iron, forged steel, SS304, SS316, brass, ductile iron 
6) Connection: RF, FF, RTJ

7) Certificates:ISO9001,CE

8) Guarantee time:1 year

Ball valve, ball valve in the field of Marine engineering and ship should stop valve), the standard of GB/T21465-2008 "valve terms" is defined as: opening and closing (sphere) driven by the valve stem, and around the axis of rotation movement of the valve stem.Use can also be used on regulation and control of fluid, the "V" ball valve, hard seal the v-shaped ball core of carbide surfacing with strong shear force between metal valve seat, especially suitable for fiber, micro solid material such as medium.And ball valve in the pipeline is not only more connected to the confluence of flexible control medium, shunt, and the flow switch, at the same time also can close any channel and make the other two.This valve shall generally be installed in the pipeline.Classification of ball valve, pneumatic ball valves, electric ball valves, manual ball valve.

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Q:Ball valve specifications are represented by 2 FF,
FF refers to the form of connection between the valve and the pipe lineFF, or Flat Face, is a common form of flat flange connection
Q:Gate valve, butterfly valve, ball valve advantages and disadvantages? What other commonly used valves?
Commonly used valves are: gate valve, globe valve, check valve, ball valve, butterfly valve, safety valve, regulating valve, plug valve and so onValve: valve is closed parts (RAM) vertical movement of the valve in the pipeline along the channel axis, used primarily as a medium cut that open and close use. In general, the valve can not be used as a regulation flow. The utility model can be applied to low temperature pressure, and can also be applied to high temperature and high pressure, and can be made according to different materials of the valve. But the valve is generally not used to transport mud and other media pipeline.Advantages: fluid resistance is small; the opening and closing torque needed by the smaller; can use the ring pipe flow to the two direction in the medium, that is to say the unrestricted flow of medium; the fully open, the sealing surface by the erosion of the working medium is smaller than the cut-off valve; the body has the advantages of simple structure, manufacturing good craft; the structure of relatively short length.Disadvantages: the size and height on the larger required installation space is larger; in the process of opening and closing, a relative friction sealing, friction is large, even scratch phenomenon caused by easily at high temperature; the valve has two sealing surface, to processing, polishing and maintenance of some increase the opening and closing time difficult.
Q:One stainless steel ball, two pieces, three pieces of difference, use
Three piece ball valve has the following advantages:1., the fluid resistance is small, and the coefficient of resistance is the same length as the pipe section.2., simple structure, small size, light weight.3., close and reliable, at present the ball valve sealing surface materials widely used plastic, good sealing, vacuum system has also been widely used.4 easy operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.5., maintenance is convenient, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.6. in full open or full closed, the ball and valve seat sealing surface and dielectric isolation, the media through, it will not cause erosion of the valve sealing surface.7., a wide range of applications, from small diameter to a few millimeters, large to several meters, from high vacuum, high pressure can be applied.
Q:1 piece, 2 piece, 3 piece ball valve, which places are used in large quantities?
Structural features of two piece ball valve:1, opening and closing without friction. This function completely solve the traditional valve because of the friction between the sealing surface and affect the sealing problem.2, top structure. The valve installed on the pipeline can be directly checked and maintained, which can effectively reduce the device parking and reduce the cost.3, single seat design. The utility model eliminates the problem that the medium of the valve in the valve is influenced by the abnormal voltage increase.4 、 low torque design. Special structural design of the valve stem, with only a small hand, the valve can easily open and close.5 wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the ball wedge to the seat and seal, so that the valve sealing is not affected by changes in pipe pressure, in a variety of conditions, sealing performance has a reliable guarantee.6. Self-cleaning structure of sealing surface. When the ball roll off the seat when the fluid in the pipeline along the sealing surface of the sphere into 360 degrees evenly through, not only eliminates the high speed fluid on the seat of local scour, also washed away the sediment on the sealing face, achieve the purpose of cleaning.
Q:The working principle of the track type ball valve
No wear and tear of switch:The ball core deviates from the valve seat and then rotates, eliminates the friction of the valve seat, and solves the abrasion problem of the seat of the traditional ball valve, gate valve and plug valve.Anti friction valve hard and dense cover:The surface of the ball core is welded with a hard polished sealing surface, which can ensure the sealing performance under very severe working conditions.
Q:What is the difference between floating and fixed ball valves?
Floating ball valve ball is floating in the medium under pressure, the ball can have a certain displacement along the center axis and pressed in the export side of the seat ring, to ensure that the export side seal and the inlet end cannot seal, the floating ball valve is a single force seal form.
Q:Which is the smallest flow valve, globe valve or butterfly valve? Which one is the biggest?
Full diameter ball valve flow resistance is minimal, the flow resistance of the globe valve is large
Q:About the characters on the ball valve (what do s and O mean?)
That's almost what it means. To be exact, S is SHUT and O is OPEN
Q: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.
Q:What is the meaning of ball valve model Q947MF-2.5C?
Q stands for ball valves, 9 for electric installations, 4 for flange connections, 7 for straight through runners, 2.5 for 2.5 kg pressure, and C for carbon steel for valve bodies,

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