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Pneumatic oblique stop valve with lock for corrugated tube

A bellows and stop valve technology, applied in the field of lock stop valves, to achieve good anti-corrosion and anti-friction performance, good anti-friction performance, and convenient management

Inactive Publication Date: 2011-03-30
SHANGHAI HAIXING VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the stop valve is forced to seal, when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. This invention provides a pneumatic bellows oblique stop valve with a lock.

Method used

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  • Pneumatic oblique stop valve with lock for corrugated tube
  • Pneumatic oblique stop valve with lock for corrugated tube
  • Pneumatic oblique stop valve with lock for corrugated tube

Examples

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0009] In the figure: 1. Inclined valve body, 2. Overlay welding Co-based hard alloy sealing ring, 3. Titanium-plated austenitic stainless steel bellows device, 4. Valve stem, 5. Gasket, 6. Bolt, 7 .Spring washer, 8. Nut, 9. Jack screw, 10. Jack nut, 11. Valve cover, 12 Pneumatic head mandrel sleeve, 13. Pneumatic head mandrel, 14. Pneumatic head mandrel sleeve cross pin, 15. Pneumatic head device, 16. packing gland, 17. packing, 18. lower packing pad, 19. valve disc. 20 lock bodies, 21 lock beams, 22. lock handle holes, 23. lock handles, 24 lock body holes, 25 lock beam grooves, 26 set screws, 27 keyholes.

[0010] In the example shown in the figure: Co-based hard alloy sealing ring 2 is surfacing on the inclined valve body 1, and Co-based hard alloy is surfacing on the sealing surface, which is wear-resistant, corrosion-resistant, anti-friction, and ...

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PUM

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Abstract

The invention relates to a stop valve with a lock, and discloses a pneumatic oblique stop valve with a lock for a corrugated tube. The oblique stop valve comprises an oblique valve body, which consists of a lock body, a lock handle integrated with the lock body, and a lock beam; a Co-based hard alloy seal ring is overlaid on the oblique valve body; once a pneumatic head spindle rotates through a pneumatic head spindle sleeve, a valve lifting rod drives a titanium-coated austenite stainless steel corrugated tube device to lift; the lock body and the lock handle are respectively provided with a lock body hole and a lock handle hole, which are parallel to each other; one end of the lock body is provided with a key hole; a lock beam groove is formed on the lock beam; and a movable positioning screw is embedded in the lock body hole. The double-durable corrugated tube is convenient to disassemble, has a rational product structure, is sealed reliably, has a sealing design and is suitable for pipelines under various working conditions such as oil and chemical industries and the like, and the locking height of the lock beam is adjustable to adapt to valves in different specifications, so that the double-durable corrugated tube has a wide application range.

Description

Technical field: [0001] The invention relates to a shut-off valve with a lock. In particular, the utility model relates to a lock cut-off valve with a lock used on pipeline valves. Background technique: [0002] At present, in the known stop valve, the opening and closing part of the stop valve is a plug-shaped valve disc, the sealing surface is a plane or a conical surface, and the valve disc moves linearly along the center line of the fluid. The movement type of the valve stem includes a lifting rod type and a lifting rotating rod type. The stop valve is only suitable for full opening and full closing, and adjustment and throttling are not allowed. It is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/32F16K31/12F16K27/02F16K35/10
Inventor 季祝华
Owner SHANGHAI HAIXING VALVE FACTORY
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