The gate valve is a shutoff valve that controls the flow of pipeline media through the vertical movement of the gate. Its core component is a wedge-shaped or parallel gate, which is driven by the valve stem to move up and down to achieve the full open or full closed state of the valve.
This design focuses on completely cutting off the flow, providing a straight flow channel in the fully open state to minimize fluid resistance. It is widely used in long-distance oil and gas pipelines, chemical plants, power stations, and urban water supply networks.
| Parameter | Specification |
|---|---|
| Product Name | Undirectional Knife Gate Valve |
| Keywords | Gate Valve |
| Drive Types | Manual/Bevel Gear/Electric/Pneumatic/Hydraulic/Electro-Hydraulic |
| Body Material | WCB/CF9/CF9M/CF4M/310S/304/316/2520/Ti |
| Gate Material | 310S/201/304/316/316L/PEEK/2520 |
| Stem Material | 420/304/316/316L |
| Sealing Material | NBR/VITON/EPDM/HTV/PTFE/PU/WCB/TC/304/Stellite |
| Size Range | DN50-DN1200 |
| Pressure Rating | 1.0MPa / 150LB |
| Payment Terms | T/T, L/C, Western Union |
The gate valve adopts a flow channel structure with the same diameter as the pipeline. When opened, the valve plate is completely separated from the medium path, forming a straight-through channel that significantly reduces pressure loss.
Effective sealing can be achieved on both sides of the gate valve plate without being restricted by the flow direction. The symmetrical structure ensures the same performance in forward or reverse installation.
Consists of fewer moving parts with a reliable mechanical structure. The lifting stem design avoids rotational wear, maintaining stable operating performance and extending maintenance cycles.
Handwheels, gearboxes, and electric or pneumatic actuators can be flexibly configured. The modular design allows adaptation to various working conditions from manual to automatic control.





