The structure is simple, and the gate plate and valve seat assembly are easy to replace;

The integral gate is used and can be used in both directions to increase service life;

The thrust bearing has large load capacity, and the rubber-plastic composite lip-shaped

valve stem packing minimizes the switching torque;

The threaded valve stem packing gland allows the bearing and valve stem packing to be

replaced when the packing is under pressure;

A new type of closed groove sealing ring is used between the valve body and the valve

cover, connected by studs, with simple structure and reliable sealing;

The bearing seat is equipped with a lubricating oil nozzle to facilitate on-site filling of grease;

The surface of the gate plate and valve seat is sprayed (stacked) and welded with special

carbide to make them have good wear resistance and corrosion resistance.

A wave spring is installed between the valve body and the valve seat, and a wave spring

is installed between the gate plate and the valve seat. A good metal seal can be maintained

between the gate plate and the valve seat under low pressure;

The gate plate is fully floating, so the valve should rotate 1/4 turn after the opening and

closing operations are in place.