CN101205976A - Fire valve - Google Patents
Fire valve Download PDFInfo
- Publication number
- CN101205976A CN101205976A CNA2007100509609A CN200710050960A CN101205976A CN 101205976 A CN101205976 A CN 101205976A CN A2007100509609 A CNA2007100509609 A CN A2007100509609A CN 200710050960 A CN200710050960 A CN 200710050960A CN 101205976 A CN101205976 A CN 101205976A
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- Prior art keywords
- valve
- core assembly
- valve body
- copper
- valve core
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fire valve comprising a valve body, a valve cap and a valve core assembly, wherein the thread fit part between the valve core assembly and the valve cap is coated with lubricant, the valve body and the valve cap are made of stainless steel, and the valve core assembly is made of copper; or the valve body and the valve cap are made of copper, and the valve core assembly is made of stainless steel; a valve stem of the valve core assembly has a chromium coating; the lubricant is anti-seizing. The invention has the advantages that: the valve core and the valve body are not easy to be rusted and stuck to each other with good corrosion resistance; the valve does not need periodic opening, thereby reducing maintenance workload; the valve core can be opened easily with convenient operation due to little affinity in a dielectric medium; the anti-seizing lubricant is adopted, and the valve is not vulnerable to ageing with stable performance and does not need frequent replacements, thereby reducing maintenance workload.
Description
Technical field
The present invention relates to fire hydrant, relate in particular to the valve of this fire hydrant.
Background technique
The purposes of fire hydrant has following characteristics, and the one, when fire alarm took place, valve was wanted and can directly be opened by rapid all-pass, so adopt stop valve usually; The 2nd, fire hydrant just uses when fire alarm takes place, all the other times are all in standby, valve is in closed condition for a long time, because tap water is not a purified water, contains charged ion, redox reaction takes place, valve is corroded easily, and especially the auxiliary section of spool, valve body is corroded severe especially, rust staining comes off and will cause valve leak, so valve must have good corrosion resistance.
At present, the fire valve that China produces all is common stop valve, and its valve body material is a cast iron, and mangetic core assembly is a steel, and corrosion resistance is poor, so fire hydrant needs running check to safeguard that time opening once prevents spool, valve body corrosion adhesion, just can remain intact state.Then adopt stainless valve abroad, have corrosion resistance preferably, wherein best with the quality of product of Japan especially.But also there is shortcoming in this valve, and promptly spool and valve body all are made of copper, belong to commaterial, when valve is in closed condition, in dielectrics, has very strong affinity between spool, the valve body, spool is opened difficulty, sometimes in addition manpower can not open, need be by instrument, for example, add lever on valve handle, inconvenient operation is affected fire fighting opportunity adversely.And whole valve is all used copper, and product cost is also very high.
In addition, the thread fiting part of valve rod and valve gap needs to lubricate, because of valve is in closed condition for a long time, this just requires lubricant properties stable, is difficult for wearing out, and uses common oiling agent now, and weather resisteant is poor, ageing failure needs often to change easily, has increased maintenance workload.
Summary of the invention
Purpose of the present invention provides that a kind of corrosion resistance is good, spool is opened easily, the stable fire valve of lubrication effect.
Technical solution of the present invention is:
A kind of fire valve has valve body, valve gap and mangetic core assembly, and the thread fiting part of mangetic core assembly and valve gap scribbles oiling agent, it is characterized in that, described valve body, valve gap are made with stainless steel, and described mangetic core assembly is made of copper; Or described valve body, valve gap be made of copper, and described mangetic core assembly is made with stainless steel.
The copper valve rod of described mangetic core assembly has chrome plating.
Described oiling agent adopts anti-sticking lubricant.
Above-mentioned fire valve has following useful technique effect:
1. the corrosion resistance of stainless steel and copper is all fine, and spool, valve body are difficult for the corrosion adhesion; Need not regularly open, reduce maintenance workload.
2. spool, valve body adopt two kinds of different corrosion resistant materials, and affinity is little in dielectrics, and spool is opened laborsaving, easy to operate.
3. the thread fiting part of mangetic core assembly and valve gap adopts anti-sticking lubricant, and stable performance is difficult for wearing out, and need not often change, and has reduced maintenance workload.
Description of drawings
Fig. 1 is the structural drawing of this valve
Embodiment
Referring to Fig. 1: this valve is a kind of stop valve, comprises valve body 11, valve gap 6 and mangetic core assembly.Valve gap 6 is threaded with valve body 11, and joint has seal ring 7.Mangetic core assembly is constituted by spool 8, valve rod 4, and valve rod 4 is threaded with valve gap 6, and joint has stuffing box packing 5.Spool 8 usefulness nuts 10 are fixed on the lower end of valve rod 4, and cooperate with the valve seat location of valve body 11, and fitting surface has sealing gasket 9.Valve rod 4 is provided with handwheel 3, is fixed on the top of valve rod 4 by nut 1.The outlet of valve body 11 is used to connect the joint 12 of fire-extinguisher water hose, and joint has seal ring 13.
Above-mentioned is the general structure of known stop valve, and the present invention does not do improvement.
Inventive point of the present invention is: adopt two kinds of different resistant materials, a kind of material of mangetic core assembly wherein, the another kind of material of valve gap, valve body.General mangetic core assembly copper, valve gap, valve body stainless steel, but also valve gap, valve body copper, valve gap, valve body stainless steel.So both corrosion-resistant, can reduce the affinity between the two again greatly.
In addition, when valve rod 4 adopts copper, for preventing its corrosion, can be in its chrome-faced.
Have again, the thread fiting part of valve rod and valve gap is filled antiseized lubricating grease, preferably select the lubricating grease of the trade mark NSBT-16 of Germany's production for use, this lubricating grease is a kind of known commercial goods, its antistick characteristic, weather resisteant, water resistence are good especially, and stable performance is difficult for aging, can lubricate screw thread for a long time, avoid its corrosion.All O-ring seal surfaces also are coated with last layer lubricating grease (preferably selecting Mobil HP222 lubricating grease produced in USA for use) equably, can prevent to seal position corrosion adhesion, and strengthen sealing effect.
Claims (3)
1. a fire valve has valve body, valve gap and mangetic core assembly, and the thread fiting part of mangetic core assembly and valve gap scribbles oiling agent, it is characterized in that: described valve body, valve gap are made with stainless steel, and described mangetic core assembly is made of copper; Or described valve body, valve gap be made of copper, and described mangetic core assembly is made with stainless steel.
2. fire valve according to claim 1 is characterized in that: the valve rod of described mangetic core assembly has chrome plating.
3. fire valve according to claim 1 is characterized in that: described oiling agent adopts anti-sticking lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100509609A CN101205976A (en) | 2007-12-20 | 2007-12-20 | Fire valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100509609A CN101205976A (en) | 2007-12-20 | 2007-12-20 | Fire valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205976A true CN101205976A (en) | 2008-06-25 |
Family
ID=39566370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100509609A Pending CN101205976A (en) | 2007-12-20 | 2007-12-20 | Fire valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205976A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104740A (en) * | 2011-11-15 | 2013-05-15 | 上海磊诺工业气体有限公司 | Anti-returning pneumatic valve |
| CN105090535A (en) * | 2015-09-06 | 2015-11-25 | 西安同华橡塑模具制品厂 | Female-end-to-male-end quick connector valve |
| CN105909859A (en) * | 2016-06-13 | 2016-08-31 | 龙工（上海）精工液压有限公司 | Foot valve ejector column |
| CN110542234A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN110645360A (en) * | 2019-09-26 | 2020-01-03 | 宁波华成阀门有限公司 | Flow control fire valve |
-
2007
- 2007-12-20 CN CNA2007100509609A patent/CN101205976A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104740A (en) * | 2011-11-15 | 2013-05-15 | 上海磊诺工业气体有限公司 | Anti-returning pneumatic valve |
| CN105090535A (en) * | 2015-09-06 | 2015-11-25 | 西安同华橡塑模具制品厂 | Female-end-to-male-end quick connector valve |
| CN105909859A (en) * | 2016-06-13 | 2016-08-31 | 龙工（上海）精工液压有限公司 | Foot valve ejector column |
| CN110542234A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN110542234B (en) * | 2019-09-12 | 2021-07-27 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN110645360A (en) * | 2019-09-26 | 2020-01-03 | 宁波华成阀门有限公司 | Flow control fire valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |