One Piece Ball Valve

1.Size: 1/4" -4" (DN6-DN100)

2.Material ：Investment Casting Stainless Steel. SUS201, SUS304,SUS316, SUS 304L , SUS 316L(CF8, CF8M),etc.

3.Thread Connection:NPT Threaded End Connection (ANSI B1.20).

4.Lockable  Handle.

5.Blow-Out-Proof Stem Design.

6.Available  in PTFE, R-PTFE seat materials.

7.High-Temp PTFE seat materials can be made available.

8.Working  Pressure of 1000 PSI.

9.Design fully complies with ASME B16.34.

10.Tested  in  accordance to API 598.

11.Temperature  range  :-40-180 degree C

12.Suitable for fire piping system, air, steam, water, gas, oil , home decoration , equipment and so on

   Testing the chemical elements of molten steel in twice during the melting to make sure the right material, standard usually ,we apply to the ASTM A351 material standard

  We adapt such SOL precision casting technology , which can produce better quality than tradional casting, Process each is strictly controlled by our professional techinc staffs

  During the whole production process it need to pass more than 5 times of inspection ,including visual and machine test ,the valve life can reach to 10,000times use

  1.The fluid resistance is small, and its resistance coefficient is equal to that of the pipe section with the same length.

  2.Simple structure, small volume and light weight. 3. Tight and reliable. At present, plastic is widely used as the sealing surface material of ball valve, with good sealing performance. It has also been widely used in vacuum system.

  3.It is easy to operate and open and close quickly. It only needs to rotate 90 ° from full open to full close, which is convenient for remote control.

  4.The maintenance is convenient, the structure of the ball valve is simple, the sealing ring is generally movable, and the disassembly and replacement are relatively convenient.

  5.When fully open or fully closed, the sealing surface of the ball and valve seat shall be isolated from the medium. When the medium passes through, it will not cause the erosion of the valve sealing surface.

  6.It has a wide range of applications, ranging from small to several millimeters and large to several meters. It can be applied from high vacuum to high pressure.

  1 in the closed position, the ball is pressed tightly on the valve seat by the [wiki] mechanical [/ wiki] pressure of the valve stem.

  2 when the hand wheel is turned counterclockwise, the valve rod moves in the opposite direction, and the angular plane at the bottom makes the ball disengage from the valve seat.

The valve rod continues to lift and interacts with the guide pin in the spiral groove of the valve rod to make the ball rotate without friction.

When it reaches the fully open position, the valve rod is lifted to the limit position, and the ball rotates to the fully open position.

( Closing process )

When the valve is closed, rotate the handle clockwise, the valve rod starts to drop and the ball starts to rotate away from the valve seat.

2 continue to rotate the hand wheel, and the valve rod is affected by the guide pin embedded in the spiral groove on it, so that the valve rod and the ball rotate 90 ° at the same time.

  3 when it is about to close, the ball has rotated 90 ° without contact with the valve seat.

  4 during the last few turns of the hand wheel, the angular plane at the bottom of the valve stem mechanically wedges the ball to make it tightly press on the valve seat to achieve complete sealing.

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