Principle of j11x-10s plastic internal thread stop valve:

The opening and closing part of j11x-10s plastic internal thread stop valve is a plug-shaped disc, the sealing surface is flat or conical, and the disc moves in a straight line along the center line of the fluid. The movement forms of j11x-10s plastic internal thread stop valve stem include lifting rod type, valve stem lifting, handwheel not lifting, and lifting rotating rod type. The handwheel rotates and lifts with the valve stem, and the nut is set on the valve body. Plastic internal thread stop valve is only applicable to full open and full close, and adjustment and throttling are not allowed. J11x-10s plastic internal thread stop valve is a forced sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak.

J11x-10s plastic internal thread stop valve when the medium enters the valve from below the valve disc, the resistance to overcome is the friction between the valve rod and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve rod should be larger, otherwise the valve rod bending fault will occur.

The medium flow direction of j11x-10s plastic internal thread stop valve changes from above the valve disc to enter the valve chamber. At this time, under the medium pressure, the force to close the valve is small, while the force to open the valve is large, and the diameter of the valve rod can be reduced accordingly. At the same time, under the action of medium, this type of valve is also relatively tight.

The flow direction of j11x-10s plastic internal thread stop valve is from top to bottom. When the PVC-U stop valve is opened, when the opening height of the valve disc is 25% - 30% of the nominal diameter, the flow has reached the maximum, indicating that the valve has reached the full open position. Therefore, the full open position of the stop valve should be determined by the stroke of the valve disc

J11x-10s plastic internal thread stop valve has the following advantages:

1. J11x-10s plastic internal thread stop valve has simple structure and convenient manufacture and maintenance.

2. J11x-10s plastic internal thread stop valve has small working stroke and short opening and closing time.

3. J11x-10s plastic internal thread stop valve has good sealing performance, small friction between sealing surfaces and long service life.

Installation and maintenance of j11x-10s plastic internal thread stop valve:

1. J11x-10s plastic internal thread stop valve handwheel and handle operated stop valve can be installed at any position of the pipeline.

2. J11x-10s plastic internal thread stop valve handwheel, handle and servo mechanism are not allowed to be used for lifting.

3. The medium flow direction of j11x-10s plastic internal thread stop valve should be consistent with the arrow direction shown on the valve body.