Unlock instant, AI-driven research and patent intelligence for your innovation.

Pneumatic globe valve for united connection bellows

The technology of a bellows globe valve and a pneumatic head is applied in the field of pneumatic globe valves to achieve the effects of simple structure, good anti-friction performance and convenient installation.

Inactive Publication Date: 2009-12-23
SHANGHAI HAIXING VALVE FACTORY
View PDF0 Cites 0 Cited by
  • 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. The present invention provides a pneumatic union-connected bellows stop valve.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pneumatic globe valve for united connection bellows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0008] In the figure: 1. Union connected valve body, 2. Overlay welding Co-based hard alloy sealing ring, 3. Titanium-plated austenitic stainless steel double bellows device, 4. Valve stem, 5. High temperature resistant 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 horizontal Pin, 15 pneumatic head device, 16. packing gland, 17. packing, 18. lower packing pad, 19. union nut, 20. sealing ring, 21. external pipe.

[0009] exist figure 1 In the example shown: Co-based hard alloy sealing ring 2 is surfacing welded on the union connection valve body 1, and Co-based hard alloy is surfacing welded on the sealing surface, which has good wear resistance, corrosion resistance, good friction resistance, and long service life. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a pneumatic globe valve for united connection bellows, in particular to a pneumatic globe valve. The pneumatic globe valve comprises a united connection valve body, wherein a Co-based hard alloy seal ring is arranged on the valve body in a mode of surface welding; an adjustable mechanism of titanizing austenitic stainless steel dual bellows is connected below a valve stem; an external connection pipe is connected with the seal ring through a united nut mechanism; and a pneumatic head mandrel rotates and passes through a pneumatic head mandrel sleeve so that the titanizing austenitic stainless steel dual bellows are driven to lift by a lifting rod of the valve stem. The pneumatic globe valve has the advantages of convenient disassembly for the dual sturdy and durable bellows, convenient disassembly for united connection, reasonable product structure, sealing and reliability. Co-based austenitic stainless is arranged on a sealing surface in a mode of the surface welding and has the advantages of good properties of abrasion resistance and friction resistance and long service life; and titanizing austenitic stainless steel for the bellows has the advantages of good properties of abrasion resistance and friction resistance and long service life. In addition, the pneumatic globe valve for the cutting ferrule connection bellows is suitable for pipelines of various operating modes in the industry of pharmacy, chemical fertilizer, and the like to cut or connect a pipeline medium.

Description

Technical field: [0001] The invention relates to a pneumatic shut-off valve. 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 has a lifting 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. Invention content: [0003] In order to solve the technical problem that the shut-off 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. The invention provides a pneumatic union-connected bellows shut-off valve. [0004] Technical solution: A pneuma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/10F16K1/34F16K1/46F16K1/48F16K27/02F16K41/02F16K31/12
Inventor 季祝华
Owner SHANGHAI HAIXING VALVE FACTORY