Maria Valve
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| Model NO. | PZ43 |
| Product Name | Undirectional Knife Gate Valve |
| Type | Dual-through |
| Material | Carbon Steel / Stainless Steel / Ti |
| Connection | Thread / Flange |
| Pressure | Low Pressure (1.0MPa/150lb) |
| Actuator | Manual/Bevel Gear/Electric/Pneumatic/Hydraulic |
| Size | DN50-DN1200 |
| Usage | Regulation, Safety, Emptying, Drain, Flow Control |
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 and provides a straight flow channel in the fully open state to minimize fluid resistance.
Gate valves are widely used in various industrial pipeline systems that require a reliable shut-off. It is used in long-distance oil and gas pipelines, chemical plants to isolate process media, and power station systems to control water vapor circuits. They are also common in urban water supply and drainage networks.
| Available Drive Types | Manual/Bevel Gear/Electric/Pneumatic/Hydraulic/Electro-Hydraulic |
| Valve Body Material | WCB/CF9/CF9M/CF4M/310S/304/316/2520/Ti |
| Gate Material | 310S/201/304/316/316L/PEEK/2520 |
| Sealing Material | NBR/VITON/EPDM/HTV/PTFE/PU/WCB/TC/304/Stellite |
| Working Pressure | 1.0MPa / 150LB |
| Customization | OEM & ODM Custom, Logo Custom Accepted |
Features a flow channel structure with the same diameter as the pipeline, maximizing energy efficiency.
Symmetrical sealing structure design ensures performance in both forward and reverse flow directions.
Modular lifting stem design avoids rotational wear, extending the maintenance cycle significantly.
Adaptable to handwheels, gearboxes, and electric or pneumatic actuators for automated control.
