Plunger Valve Series

UZ41H Piston Gate Valve

The UZ41H is composed of parts such as valve body, valve cover, valve stem, plunger, guide sleeve, sealing ring, handwheel, etc. When the handwheel rotates, it drives the plunger through the valve stem to reciprocate up and down in the guide sleeve, enabling the inclined conical surface at the end of the plunger and the valve seat surface to complete the opening and closing functions of the valve. In the valve, the plunger cooperates with the sealing ring. By adjusting the pre-tightening force of the middle flange bolts, the lateral force generated by the compression of the sealing ring seals with the inner hole surface of the valve body and the outer circle of the plunger. It is a new non-toxic sealing material with high wear resistance. Therefore, the sealing is reliable, which improves the service life of the valve.

US41H Stainless Steel Flange Plunger Valve

The seal of the plunger valve consists of a plunger that has undergone precision grinding and polishing treatment and a hard valve seat surface after surfacing welding. After rough machining, the plunger undergoes chemical treatments such as carburizing, high - frequency quenching, and nitriding, and its hardness can reach up to HRC58 - 64. The upper sealing ring of the plunger valve is made of a new non - toxic metal material, which has the functions of pressure resistance, wear resistance, and self - lubrication, ensuring reliable sealing.

Angle Plunger Valve US44H

The working principles of the angle - type plunger valve and the straight - through plunger valve are exactly the same. The only difference is their installation positions in the pipeline. Therefore, in long - distance pipelines of industries such as petroleum, chemical engineering, fertilizer, and pharmaceuticals, there are many corner bends. The angle - type plunger valve is just installed at this part. This not only reduces the elbow pipes but also has the characteristics of convenient installation, labor - saving, and material - saving.