Eccentric two-way sealing butterfly valve

A two-way sealing, eccentric technology, applied in the direction of lift valve, valve details, valve device, etc., can solve problems such as butterfly valve leakage, and achieve the effect of preventing valve leakage, alleviating excessive deformation, and convenient replacement of floating valve seat.

Inactive Publication Date: 2011-03-23
JIANGSU SUWEI VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology makes it possible to use fluids like oil instead of solvents when create hydraulic systems that work better by pushing certain parts towards each other. Unlike regular ball bearings used in conventional devices, this new design prevents backflow while still allowing for efficient operation even if there're some leaks between different components. Additionally, the system has fewer moving parts compared to traditional methods such as screw threads, making maintenance less expensive over time. Overall, these technical benefits make the process safer and cost-effectively.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the efficiency or reliability of an electronic device's control system when it uses a ball-type valves with eccentsingular design. Specifically, there are issues where some parts may get stuck during operation if they cannot fully open their valve properly for example because they have been forced backward too much from being closed correctly. This can cause leaks over time.

Method used

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  • Eccentric two-way sealing butterfly valve
  • Eccentric two-way sealing butterfly valve
  • Eccentric two-way sealing butterfly valve

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Embodiment Construction

[0024] The present invention is an improvement based on the structural defects of the existing butterfly valve. According to the necessary requirements for sealing, a floating sealing valve seat is added, and the fluid pushes the floating valve seat to generate a specific pressure greater than the minimum sealing pressure so that the two directions of the butterfly valve All can be sealed.

[0025] attached figure 2 It is the left side view of the present invention, as shown in the figure, the torque input to the worm gear device 26 (also can be other such as electric device, hydraulic device or handle, etc.) drives the valve stem 8 to rotate through the key 27, and the valve stem torque passes through the cylindrical pin 9 Drive the butterfly plate 10 and multi-layer sealing ring 13 (the multi-layer sealing ring 13 is fixed on the butterfly plate 10 through the hexagon socket head screw 12 and the pressure plate ring 11) to rotate, and the multi-layer sealing ring 13 gradually

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Abstract

The invention provides an eccentric two-way sealing butterfly valve. The valve seat of the butterfly valve consists of an independent floating valve seat and O-shaped seal rings on the floating valve seat to form a new sealing pair, wherein the side face and the bottom of the valve seat are provided with plastic or rubber O-shaped seal rings. The eccentric two-way sealing butterfly valve has the advantages that the valve can bear pressure (within 1.25 times the nominal pressure) which is applied by a medium from any side; and the aim of preventing the medium from reflowing can be fulfilled by arranging one eccentric two-way pressure butterfly valve on a pipeline and not arranging a check valve or other two-way pressure valves.

Description

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Claims

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Application Information

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Owner JIANGSU SUWEI VALVE
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