The slab gate valve adopts a new floating sealing structure and is suitable for oil and natural gas pipelines with pressures not greater than 15.0MPa and temperatures of -29 to 121°C. , strict testing, easy to operate, with strong anti-corrosion, wear resistance and erosion resistance, it is an ideal new equipment in the petroleum industry.
- slab gate valve is with main structure: Slab Gate Valve
- Sizes range from 2"~48"
- Pressure ranges from ANSI 150LB~2500LB, PN16~PN420
- Operation could be available with Direct Mount, Handwheel, Gear Operators, Pneumatic Actuators or Electric Actuators.
- Ends connection is R.F, RTJ, B.W
- Material is Carbon Steel, Stainless Steel, Duplex, Special Material
- Standard is API6D
- Inspection Standard is API598
- Metal seat and graphite or PTFE packing
- Fire Safety Design
- ISO 5211 Top mounting
- Structural features and working principles
1. It adopts floating valve seat, bidirectional opening and closing, reliable sealing and flexible opening and closing.
2. The gates are equipped with guide strips for precise guidance, and the sealing surfaces are all spray-welded with carbide to resist erosion.
3. The valve body has high load-bearing capacity and the channel is straight-through. When fully open, it is connected with the gate guide hole and is similar to a straight pipe, with very small flow resistance. The valve stem uses composite packing and multiple seals, making the seal reliable and reducing friction.
4. When closing the valve, turn the handwheel clockwise, and the gate plate will move down to the bottom. Due to the effect of the medium pressure, the inlet end sealing seat will be pushed toward the gate plate, forming a larger sealing specific pressure, thereby forming the first seal. . At the same time, press the gate plate against the sealing seat at the outlet end to form a double seal.
5. Due to the double seal, wearing parts can be replaced without affecting the pipeline work. This is an important feature that gives our products priority over similar products at home and abroad.
6. When opening the gate, rotate the handwheel counterclockwise, the gate will move up, and the guide hole will connect with the channel hole. As the gate plate rises, the through hole gradually enlarges. When it reaches the extreme position, the guide hole and the channel hole overlap and are fully open at this time.
Slab Valve
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