CN102878331A - Self seal guiding type stop check valve - Google Patents
Self seal guiding type stop check valve Download PDFInfo
- Publication number
- CN102878331A CN102878331A CN2012103865644A CN201210386564A CN102878331A CN 102878331 A CN102878331 A CN 102878331A CN 2012103865644 A CN2012103865644 A CN 2012103865644A CN 201210386564 A CN201210386564 A CN 201210386564A CN 102878331 A CN102878331 A CN 102878331A
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- China
- Prior art keywords
- valve
- guiding type
- check valve
- flap
- self seal
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- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a self seal guiding type stop check valve in the field of pipe control equipment. The self seal guiding type stop check valve consists of a valve body, a valve seat, a bonnet, a valve clack, a valve clack cover, a valve rod, a support, a pendant collet, a ring cushion plate, a pre-tightening plate, an equalizing ring, a self seal, a pressing plate, a pressing sleeve, packing and a valve rod nut. The self seal guiding type stop check valve has dual functions of a stop valve and a check valve, the valve rod is movably connected with the valve clack; the valve clack cover is connected with the valve clack; the valve clack blocks a valve opening by the dead weight of the valve clack; when media enter the stop check valve from a low groove, the self seal guiding type stop check valve is used as a stop valve; and when the media enter the stop check valve from a high groove, the self seal guiding type stop check valve is used as a check valve. The self seal guiding type stop check valve has the advantages of reasonable structure, excellent performance, low cost and the like.
Description
Technical field
The present invention relates to a kind of pipe control equipment, more particularly, the present invention relates to a kind of selfsealings guiding type screw down nonreturn valve.
Background technique
Valve is industrial a kind of pipe control equipment commonly used, and stop valve and safety check are two kinds of the most frequently used valves, and the function of traditional stop valve is cut-off or connects ducted medium that the function of safety check is that control media flows backwards.In order to reduce cost, the future development that raising performance, multi-purpose valve are.The objective of the invention is the function of stop valve and safety check is combined, is stop valve when medium enters from low groove; Safety check when medium enters from high groove.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of selfsealings guiding type screw down nonreturn valve with stop valve and safety check dual functions is provided.
The objective of the invention is to be achieved through the following technical solutions:
A kind of selfsealings guiding type screw down nonreturn valve is by valve body, valve seat, valve gap, flap, valve clack cover, valve rod, support, pendant collet, the ring backing plate, the pretension plate, piezometer ring, selfsealings, pressing plate, gland, filler and Stem Mut form, valve adopts self sealing structure, valve seat is detachable, valve rod is connected with the flap on-fixed, being connected with flap of valve clack cover, valve rod is play the guiding role, flap relies on deadweight shutoff valve port, lobe lid mouth has a pilot hole, valve rod inserts in the pilot hole, with the big up and small down inclined-plane of the contacted valve seat end face of flap, its tilt angle is 45 °, changes the valve body uninterrupted by the regulating valve stem upper-lower position.The effect of former valve clack cover is valve rod and being connected of flap, and now changes into flap being connected, and valve rod is play the guiding role, and former valve seat welds at body, and bad dismounting now changes detachable valve seat into, and is easy to maintenance.
Technique scheme is done further to limit, and described selfsealings guiding type screw down nonreturn valve, valve sealing face adopt built-up welding iron-base hard alloy material.Multi-purpose valve, frequency of utilization is higher, and valve sealing face weares and teares easily, adopts built-up welding iron-base hard alloy material, improves the valve sealing face wear resistance.
Technique scheme is done further to limit, described a kind of selfsealings guiding type screw down nonreturn valve, valve is imported and exported two ends and is adopted welding connecting mode.
Compared with prior art, the present invention has following beneficial effect:
1. rational in infrastructure;
2. function admirable;
3. cost is low.
Description of drawings
Fig. 1 is selfsealings guiding type screw down nonreturn valve schematic representation
Among the figure: valve body 1, valve seat 2, flap 3, lobe mouth 4, valve rod 5, valve clack cover 6, valve gap 7, selfsealings 8, piezometer ring 9, pendant collet 10, filler 11, ring backing plate 12, filler 13, pretension plate 14, pressing plate 15, gland 16, support 17, Stem Mut 18 and spanner 19.
Embodiment
Below in conjunction with accompanying drawing essentiality content of the present invention is described in further detail:
As shown in the figure: a kind of selfsealings guiding type screw down nonreturn valve is by valve body 1, valve seat 2, valve gap 7, flap 3, valve clack cover 6, valve rod 5, support 17, pendant collet 10, ring backing plate 12, pretension plate 14, piezometer ring 9, selfsealings 8, pressing plate 15, gland 16, filler 11 and Stem Mut 18 form, valve adopts self sealing structure, valve rod is not fixedly connected with flap, being connected with flap of valve clack cover, when valve rod decline is pressed on flap on the valve seat by valve gap, play the stop valve effect, after valve rod rises, flap relies on deadweight shutoff valve port, stop valve when medium enters from low groove, be safety check when medium enters from high groove, lobe lid mouth has a pilot hole, and valve rod inserts in the pilot hole, valve rod is play the guiding role, with the big up and small down inclined-plane of the contacted valve seat end face of flap, its tilt angle is 45 °, can change the valve body uninterrupted by the regulating valve stem upper-lower position, former valve seat is welded on the body, bad dismounting now changes detachable valve seat into, convenient for maintaining.Selfsealings guiding type screw down nonreturn valve, valve sealing face adopt built-up welding iron-base hard alloy material.Multi-purpose valve, frequency of utilization is higher, and valve sealing face weares and teares easily, adopts built-up welding iron-base hard alloy material, improves the valve sealing face wear resistance.
Claims (3)
1. a selfsealings guiding type screw down nonreturn valve is by valve body, valve seat, valve gap, flap, valve clack cover, valve rod, support, pendant collet, the ring backing plate, the pretension plate, piezometer ring, selfsealings, pressing plate, gland, filler and Stem Mut form, it is characterized in that: valve adopts self sealing structure, valve seat is detachable, valve rod is connected with the flap on-fixed, being connected with flap of valve clack cover, valve rod is play the guiding role, flap relies on deadweight shutoff valve port, lobe lid mouth has a pilot hole, valve rod inserts in the pilot hole, with the big up and small down inclined-plane of the contacted valve seat end face of flap, its tilt angle is 45 °, changes the valve body uninterrupted by the regulating valve stem upper-lower position.
2. a kind of selfsealings guiding type screw down nonreturn valve according to claim 1 is characterized in that: valve sealing face employing built-up welding iron-base hard alloy material.
3. a kind of selfsealings guiding type screw down nonreturn valve according to claim 1 is characterized in that: valve import and export two ends employing welding connecting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103865644A CN102878331A (en) | 2012-10-13 | 2012-10-13 | Self seal guiding type stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103865644A CN102878331A (en) | 2012-10-13 | 2012-10-13 | Self seal guiding type stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878331A true CN102878331A (en) | 2013-01-16 |
Family
ID=47479777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103865644A Pending CN102878331A (en) | 2012-10-13 | 2012-10-13 | Self seal guiding type stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878331A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471659A (en) * | 2013-09-26 | 2013-12-25 | 蒋建平 | Combined-type water meter and switching control method thereof |
| CN110985715A (en) * | 2019-12-11 | 2020-04-10 | 南通国电阀门科技有限公司 | Y-shaped two-body ball sealing check valve for nuclear power island core |
| CN112228566A (en) * | 2019-06-30 | 2021-01-15 | 上海瑞控阀门有限公司 | Y-shaped ultra-low temperature quick stop valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034643U (en) * | 1988-05-24 | 1989-03-22 | 徐步淦 | Decelerator with bimetallic strips |
| US5172716A (en) * | 1991-07-01 | 1992-12-22 | Keystone International Holdings Corp. | Recirculation valve |
| CN1363019A (en) * | 2000-02-17 | 2002-08-07 | Lg电子株式会社 | Lubricant supplying apparatus of reciprocating compressor |
| CN101749443A (en) * | 2008-12-12 | 2010-06-23 | 江苏江华阀业有限公司 | Special leakage-free valve for dry chlorine |
| CN201787145U (en) * | 2010-08-12 | 2011-04-06 | 中国石油化工股份有限公司 | Difunctional valve |
| CN202176766U (en) * | 2011-07-21 | 2012-03-28 | 天津市国威给排水设备制造有限公司 | Check and stop valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN102635699A (en) * | 2012-04-17 | 2012-08-15 | 南京华宁阀门有限公司 | Regulating cut-off-type discharging exhaust valve |
| CN202451895U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Stop check valve |
-
2012
- 2012-10-13 CN CN2012103865644A patent/CN102878331A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034643U (en) * | 1988-05-24 | 1989-03-22 | 徐步淦 | Decelerator with bimetallic strips |
| US5172716A (en) * | 1991-07-01 | 1992-12-22 | Keystone International Holdings Corp. | Recirculation valve |
| CN1363019A (en) * | 2000-02-17 | 2002-08-07 | Lg电子株式会社 | Lubricant supplying apparatus of reciprocating compressor |
| CN101749443A (en) * | 2008-12-12 | 2010-06-23 | 江苏江华阀业有限公司 | Special leakage-free valve for dry chlorine |
| CN201787145U (en) * | 2010-08-12 | 2011-04-06 | 中国石油化工股份有限公司 | Difunctional valve |
| CN202176766U (en) * | 2011-07-21 | 2012-03-28 | 天津市国威给排水设备制造有限公司 | Check and stop valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN202451895U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Stop check valve |
| CN102635699A (en) * | 2012-04-17 | 2012-08-15 | 南京华宁阀门有限公司 | Regulating cut-off-type discharging exhaust valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471659A (en) * | 2013-09-26 | 2013-12-25 | 蒋建平 | Combined-type water meter and switching control method thereof |
| CN103471659B (en) * | 2013-09-26 | 2015-12-02 | 蒋建平 | A kind of Combined water-meter and method for handover control thereof |
| CN112228566A (en) * | 2019-06-30 | 2021-01-15 | 上海瑞控阀门有限公司 | Y-shaped ultra-low temperature quick stop valve |
| CN110985715A (en) * | 2019-12-11 | 2020-04-10 | 南通国电阀门科技有限公司 | Y-shaped two-body ball sealing check valve for nuclear power island core |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130116 |