CN2317375Y - Medium-high-pressure bellow stop valve - Google Patents

Medium-high-pressure bellow stop valve Download PDF

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Publication number
CN2317375Y
CN2317375Y CN 97228760 CN97228760U CN2317375Y CN 2317375 Y CN2317375 Y CN 2317375Y CN 97228760 CN97228760 CN 97228760 CN 97228760 U CN97228760 U CN 97228760U CN 2317375 Y CN2317375 Y CN 2317375Y
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CN
China
Prior art keywords
valve
valve rod
bellows
valve body
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 97228760
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Chinese (zh)
Inventor
吕海常
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 97228760 priority Critical patent/CN2317375Y/en
Application granted granted Critical
Publication of CN2317375Y publication Critical patent/CN2317375Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a middle and high pressure corrugated pipe stop valve which belongs to the class of valves and is composed of a valve body, a steel ball, an O-shaped ring, a corrugated pipe, a lower valve rod, an upper valve rod, a valve cap, etc. The utility model is characterized in that the upper part of the valve body is provided with the upper valve rod and the lower valve rod, and the lower part of the lower valve rod is provided with a valve core cover and the steel ball. The upper end of the corrugated pipe is welded with the lower end of the upper valve rod, and the lower end of the corrugated pipe is welded with a middle contact tag by a lining soldering inner pad. The O-shaped ring is arranged below the middle contact tag, and the valve cap is tightly covered on the valve body. The utility model has the advantages of tight seal, long service life and high compressive strength and is a middle and high pressure corrugated pipe stop valve which can prevent the medium in a pipeline and a valve chamber from leaking outwards under any condition.

Description

The mesohigh bellows stop valve
The utility model relates to a kind of mesohigh bellows stop valve, belongs to valve type.
At present, existing General valve, though closure member can solve the switching problem of flowing medium in the pipeline, but medium can be along valve rod when opening state, leak into the valve body outside by stuffing box packing, cause valve body to produce the phenomenon of run, drip, leak, particularly along with the phenomenon of this run, drip, leak of increase of pressure medium is also just even more serious; In addition, the closure member of existing stop valve all is that plane or cone combine with valve seat or divide and open closing function, and its sealing surface is easy to wear, and the life-span lacks; Plane or grooved metal gasket are all adopted in existing universal valve body and valve bonnet seal, and withstand voltage low, high temperature media can reduce sealability; Existing low pressure bellows stop valve generally uses below 1MPA, can not bear the above pressure of 1MPA, and existing in a word stop valve is not ideal enough.
It is tight that the purpose of this utility model is to design a kind of sealing, makes closure member with steel ball, is welded with bellows on the valve rod, is applicable to the bellows stop valve of mesohigh.
The purpose of this utility model is to realize like this, it is mainly by valve body (1), steel ball (2), O type circle (6), bellows (10), lower valve rod (11), upper valve rod (12), valve gap parts such as (21) are formed, the top that it is characterized in that valve body (1) is equipped with upper valve rod (12) and the lower valve rod (11) that is connected by non-magnetic shim (22), the bottom of lower valve rod (11) is provided with valve core housing (5) and steel ball (2), the upper end of bellows (10) is by lining outer pad of weldering (20) and the welding of upper valve rod (12) lower end, the lower end of bellows (10) is by welding pad (19) and middle contact pin (7) welding, middle contact pin (7) has O type circle (6), valve gap (21) by in connect cap (8) and locking nut (9) tightly covers on valve body (1), be with Packing seat (13) on the upper valve rod (12) respectively, filler (14) and filler pressure pad (15) also pass through pressure pad nut (16) buckle closure on valve gap (21), the upper tip of upper valve rod (12) is equipped with handle (18) by hexagon socket head cap screw (17), and the two ends of valve body (1) are equipped with adapter (3) by outer connected nut (4) respectively.
The utility model compared with prior art, its sealing is tight, long service life, the compressive strength height is a kind ofly can make that medium in no instance can be to the mesohigh bellows stop valve of external leakage in pipeline and the valve pocket.
Below in conjunction with drawings and Examples the utility model is further specified:
Accompanying drawing 1 is the whole sectional structure schematic representation of the utility model.
Wherein: 1, valve body, 2, steel ball, 3, take over, 4, outer connected nut, 5, valve core housing, 6, O type circle, 7, middle contact pin, 8, in connect cap, 9, locking nut, 10, bellows, 11, lower valve rod, 12, upper valve rod, 13, Packing seat, 14, filler, 15, the filler pressure pad, 16, the pressure pad nut, 17, hexagon socket head cap screw, 18, handle, 19, welding pad, 20, the outer pad of lining weldering, 21, valve gap, 22, non-magnetic shim.
Referring to accompanying drawing: the utility model it mainly by valve body (1), steel ball (2), O type circle (6), bellows (10), lower valve rod (11), upper valve rod (12), valve gap parts such as (21) are formed, the top that it is characterized in that valve body (1) is equipped with upper valve rod (12) and the lower valve rod (11) that is connected by non-magnetic shim (22), here valve rod is divided into upper valve rod (12) and lower valve rod (11), when rotating upper valve rod (12), upper valve rod (12) produces axial displacement, be connected non-magnetic shim (22) by upper valve rod (12) with lower valve rod (11), make lower valve rod (11) produce axial displacement in the same way, open and reach valve closing member, closed function.The bottom of lower valve rod (11) is provided with valve core housing (5) and steel ball (2), and steel ball (2) is the steel ball of high temperature resistant high hardness, and can 360 ° of universal rotations, strengthens sealability, constantly changes potted line, increases the service life, and makes sealing keep closely permanent.The upper end of bellows (10) is by lining outer pad of weldering (20) and the welding of upper valve rod (12) lower end, the lower end of bellows (10) is by welding pad (19) and middle contact pin (7) welding, bellows (10) is the multilayer corrugated stainless steel tubing, can make compressive strength bring up to 1.6~6.4MPa.Middle contact pin (7) has O type circle (6), and O type circle (6) is a hollow tubular stainless steel seal ring, the sealing good springiness, and when temperature is high, air expansion, enhancing sealability in the hollow tubular.Valve gap (21) by in connect cap (8) and locking nut (9) tightly covers on valve body (1), be with Packing seat (13), filler (14) and filler pressure pad (15) on the upper valve rod (12) respectively and pass through pressure pad nut (16) buckle closure on valve gap (21), the upper tip of upper valve rod (12) is equipped with handle (18) by hexagon socket head cap screw (17), and the two ends of valve body (1) are equipped with adapter (3) by outer connected nut (4) respectively.

Claims (1)

1, a kind of mesohigh bellows stop valve, it is mainly by valve body (1), steel ball (2), O type circle (6), bellows (10), lower valve rod (11), upper valve rod (12), valve gap parts such as (21) are formed, the top that it is characterized in that valve body (1) is equipped with upper valve rod (12) and the lower valve rod (11) that is connected by non-magnetic shim (22), the bottom of lower valve rod (11) is provided with valve core housing (5) and steel ball (2), the upper end of bellows (10) is by lining outer pad of weldering (20) and the welding of upper valve rod (12) lower end, the lower end of bellows (10) is by welding pad (19) and middle contact pin (7) welding, middle contact pin (7) has O type circle (6), valve gap (21) by in connect cap (8) and locking nut (9) tightly covers on valve body (1), be with Packing seat (13) on the upper valve rod (12) respectively, filler (14) and filler pressure pad (15) also pass through pressure pad nut (16) buckle closure on valve gap (21), the upper tip of upper valve rod (12) is equipped with handle (18) by hexagon socket head cap screw (17), and the two ends of valve body (1) are equipped with adapter (3) by outer connected nut (4) respectively.
CN 97228760 1997-10-20 1997-10-20 Medium-high-pressure bellow stop valve Expired - Fee Related CN2317375Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97228760 CN2317375Y (en) 1997-10-20 1997-10-20 Medium-high-pressure bellow stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97228760 CN2317375Y (en) 1997-10-20 1997-10-20 Medium-high-pressure bellow stop valve

Publications (1)

Publication Number Publication Date
CN2317375Y true CN2317375Y (en) 1999-05-05

Family

ID=33941839

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97228760 Expired - Fee Related CN2317375Y (en) 1997-10-20 1997-10-20 Medium-high-pressure bellow stop valve

Country Status (1)

Country Link
CN (1) CN2317375Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100380028C (en) * 2005-06-29 2008-04-09 上海自动化仪表股份有限公司 Nuclear breathing regulating valve for helium test system
CN102937189A (en) * 2012-11-16 2013-02-20 镇江市华阳机电制造有限公司 Needle valve with two-piece valve rods
CN106838348A (en) * 2017-03-28 2017-06-13 江苏星河阀门有限公司 HTHP bellows stop valve
WO2018053662A1 (en) * 2016-09-22 2018-03-29 沈静静 Supercritical small diameter corrugated pipe spherical sealing forged shut-off valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100380028C (en) * 2005-06-29 2008-04-09 上海自动化仪表股份有限公司 Nuclear breathing regulating valve for helium test system
CN102937189A (en) * 2012-11-16 2013-02-20 镇江市华阳机电制造有限公司 Needle valve with two-piece valve rods
WO2018053662A1 (en) * 2016-09-22 2018-03-29 沈静静 Supercritical small diameter corrugated pipe spherical sealing forged shut-off valve
CN106838348A (en) * 2017-03-28 2017-06-13 江苏星河阀门有限公司 HTHP bellows stop valve

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee