Structure Characteristics Of Electric Cut-off Valve
- Aug 28, 2017 -

1, the opening and closing without friction. This function completely solves the problem that the traditional valve affects the seal because of the friction between the sealing surfaces.

2. Top-mounted structure. The valve installed on the pipeline can be directly on-line inspection and maintenance, can effectively reduce the device parking, reduce costs.

3, single valve seat design. It eliminates the problem that the cavity medium of the valve affects the safety of the use of abnormal boost.

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

5, wedge-shaped sealing structure. Valve is the mechanical force provided by the stem, the ball wedge pressure on the valve seat and sealed, so that the valve tightness is not affected by the pressure difference in the pipeline, in various operating conditions sealed performance is reliable guarantee.

6. Self-cleaning structure of the sealing surface. When the sphere leans away from the valve seat, the fluid in the pipeline passes along the spherical seal surface to 360° evenly through, not only eliminates the high speed fluid to the seat partial scour, also washed away the accumulation material on the seal surface, achieves the self-cleaning goal.

7, Valve caliber DN50 below the valve body, the valve cover is the mold forging, the DN65 above the valve body, the valve cover is the steel castings.

8, the valve body and the valve cover the connection form each has the different, the clamp pin pins connection, the flange gasket connection and the self sealing thread connection.

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

10, the valve stem material is nitriding steel, the valve stem surface after nitriding is high hardness, abrasion resistance, abrasion resistance, corrosion protection at the same time, long service life.