Categories

Knowledge

Electric cut-off valve structure features
May 15, 2018

1, open and close without friction.

This function completely solves the problem that the traditional valve is affected by the friction between the sealing surface and the seal. 

2. Top-mounted structure.

The valve installed on the pipeline can be directly inspected and repaired on line, which can effectively reduce the parking of the device and reduce the cost. 

3. Single valve seat design.

It eliminates the problem that the valve medium cavity media is affected by abnormal step-up. 

4. Low torque design.

Special structural design of the stem, just with a small hand valve can easily open and close. 

5, wedge-shaped seal structure.

Valve is provided by the valve stem of the mechanical force, the ball wedge pressure to the seat and seal, so that the valve sealing is not affected by the changes in the pipeline pressure, under various operating conditions, sealed performance has a reliable guarantee. 

6. The self-cleaning structure of the sealing surface.

When the ball tilting away from the seat, the fluid in the pipeline along the ball sealing surface into 360° evenly through, not only eliminates the high-speed fluid on the seat part of the scour, but also washed off the seal surface accumulation, to achieve self-cleaning purpose.

7, Valve diameter DN50 The following valve body, valve cover is die forgings, DN65 above the valve body, valve cover is steel castings.

8, the valve body and the valve cover connection form each has the different, the clamp collar pin axle type connection, the flange gasket connection and the self sealed thread connection.

9, Valve seat, disc sealing surface are used plasma spray welding or surfacing of cobalt-chromium tungsten carbide, sealing surface hardness, wear-resistant, abrasion resistance, long service life.

10, valve stem material for nitriding steel, nitriding valve stem surface hardness high, wear-resistant, abrasion resistance, while anti-corrosion, long service life.

  • QR CODE
  • facebook