The resilient-seated eccentric plug valve is a valve that uses an eccentrically designed plug (the plug axis is offset from the valve body axis) in conjunction with a resilient sealing seat. The flow of media is controlled by rotating the eccentric plug. Its eccentric structure ensures that the plug only contacts the sealing seat at the end during opening and closing, reducing frictional loss. The resilient seat (usually rubber or elastic plastic) has a certain deformation capacity, which can compensate for wear on the sealing surface and ensure long-term sealing performance. It combines the advantages of easy opening and closing, reliable sealing, and wear resistance, making it suitable for complex working conditions such as sewage, slurry, and fluids containing small amounts of impurities. It conforms to GB/T 13927 valve pressure test and CJ/T 280 resilient-seated eccentric plug valve standards, and is widely used in municipal water supply and drainage, sewage treatment, chemical, and metallurgical fields.
Resilent Seat Eccentric Plug Valve Drawning
Technical Parameters
Nominal diameter:50-800mm
Nominal pressure:1.0MPa
Operating temperature: 0-70℃
Strengh testing pressure:1.5MPa
Seat testing pressure:1.1MPa
Applicable medium:Sewage,water, air, and oil (MBR)
Driving way :Handle type, transmission of cap type, electric, air
Resilient Seat Eccentric Plug Valve Main Connection Dimensions
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
| L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 |
| Hmin | 322 | 332 | 350 | 420 | 581 | 581 | 736 | 882 | 1009 | 1300 | 1380 |
| Hmax | 374 | 398 | 429 | 524 | 721 | 736 | 942 | 1013 | 1117 | 1655 | 1805 |
The Resilient Seat Eccentric Plug Valve features include:
1. Eccentric Design Principle:
- Employs a single eccentric structure, with a specific offset between the valve stem axis and the center of the sealing surface.
- This design reduces frictional resistance during valve opening and closing.
- Achieving full opening or full closing action with just 90 degrees of rotation.
2. Resilient Sealing System:
- The valve seat is entirely covered with high-quality rubber or other polymer materials.
- It has an automatic wear compensation function, ensuring long-term sealing reliability.
- It can adapt to a certain degree of pipeline deformation and vibration.
3. Key Components:
• Plug Body: Typically a hemispherical or conical metal substrate covered with an elastic material.
• Valve Body Passage: Streamlined design reduces fluid resistance loss.
• Actuator: Supports multiple operation methods including manual, pneumatic, or electric.