Pneumatic drain drain valve

Pneumatic drain drain valve

Pneumatic drain drain valve refers to the evolution of the gate. It uses the gear to rotate 90 degrees to drive the stem to achieve the purpose of opening and closing. The pneumatic drainage drain valve not only has simple structure and good sealing performance, but also has small volume, light weight, less material consumption, small installation size, especially small driving torque, simple operation and easy opening and closing.

Structural features

1. The valve body and the valve cover are connected by a clamp type, the structure is compact, the disassembly is convenient, and the installation is convenient, and the branch pipe is a welded connection.

2. The pressure self-tightening sealing structure is adopted, and the sealing ring is made of the formed asbestos packing, the higher the medium pressure and the better the sealing property.

3. The medium flows from the branch pipe into the downward discharge.

4. The valve disc is a piston structure and is treated with boron. Corrosion resistant and erosion resistant. long lasting.

Installation Notes

1. The multi-pass drain valve is mounted vertically on a horizontal pipe.

2. Install the valve only after cleaning the pipe.

3. Turn the handwheel valve stem counterclockwise to drive the valve core to move up gradually, the sealing surface is disengaged, the flow guiding seat on the valve core gradually moves out of the inner hole of the valve seat, forming a narrow gap gap, and the medium passes through the symmetrical orifice on the valve seat. Inside the seat, a small amount of media can flow out through the narrow slits, gradually reducing system pressure.

4. Continue to rotate the hand wheel counterclockwise, the valve core moves upward, and the throttle hole on the flow guiding seat moves out of the inner cavity of the valve seat, and more medium is smoothly discharged after being throttled by the flow guiding seat and the valve sleeve.

5. Continue to turn the handwheel counterclockwise, the valve core moves up to the fully open position. At this time, the medium pressure is greatly reduced, a large amount of impurities can be directly discharged from the orifice of the valve sleeve, and a vortex is formed at the inverted sealing seat. Clean the sealing surface to prevent impurities from adhering to the sealing surface.