JPS552919A - Method of inspecting pressure loss in gas cock fitted with excess flow preventing valve - Google Patents
Method of inspecting pressure loss in gas cock fitted with excess flow preventing valveInfo
- Publication number
- JPS552919A JPS552919A JP7538578A JP7538578A JPS552919A JP S552919 A JPS552919 A JP S552919A JP 7538578 A JP7538578 A JP 7538578A JP 7538578 A JP7538578 A JP 7538578A JP S552919 A JPS552919 A JP S552919A
- Authority
- JP
- Japan
- Prior art keywords
- pressure loss
- gas cock
- flow preventing
- time
- excess flow
- 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.)
- Granted
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
PURPOSE: To determine the quality by the pressure loss at the time of valve operation, by gradually increasing the amount of flow to a test gas cock and holding and measuring the maximum instantaneous pressure loss at the time of operation of a excess flow preventing valve.
CONSTITUTION: To determine the quality of a gas cock fitted with an excess flow preventing valve, the valve opening ratio is gradually increased. Then, the amount of flow increases. When it exceeds a certain level, the excess flow preventing valve of test gas cock Y operates and the flow stops. The maximum pressure loss at this time is detected by pressure sensor A, and it is converted into an electrical signal by pressure generator B. Then, it is amplified by amplifier C to the measuring level and is transmitted to digital panel meter D, which displays the maximum pressure loss. Since the operational pressure loss at this time is charged to the output of governor Z instantly, the point of operational pressure loss change is held by means of measured value hold detector E, and by the hold circuit signal, the measured value of the point of change is displayed in digital panel meter D. Digital setter F performs lamp display, OK the measured value is below the preset upper limit, and NG when it is above the limit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7538578A JPS552919A (en) | 1978-06-23 | 1978-06-23 | Method of inspecting pressure loss in gas cock fitted with excess flow preventing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7538578A JPS552919A (en) | 1978-06-23 | 1978-06-23 | Method of inspecting pressure loss in gas cock fitted with excess flow preventing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS552919A true JPS552919A (en) | 1980-01-10 |
| JPS5736534B2 JPS5736534B2 (en) | 1982-08-04 |
Family
ID=13574667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7538578A Granted JPS552919A (en) | 1978-06-23 | 1978-06-23 | Method of inspecting pressure loss in gas cock fitted with excess flow preventing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS552919A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57151903U (en) * | 1981-03-19 | 1982-09-24 | ||
| JPS57155906U (en) * | 1981-03-25 | 1982-09-30 | ||
| CN103698078A (en) * | 2013-12-20 | 2014-04-02 | 中国北方车辆研究所 | Device for testing pressure of pressure valve of power battery in opening process |
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104651U (en) * | 1983-12-22 | 1985-07-17 | 東芝機器株式会社 | Louver device |
| JPH0422048Y2 (en) * | 1984-10-03 | 1992-05-20 | ||
| CN102944381A (en) * | 2012-10-17 | 2013-02-27 | 中建三局第一建设工程有限责任公司 | Pressure test device for combined valve component |
-
1978
- 1978-06-23 JP JP7538578A patent/JPS552919A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57151903U (en) * | 1981-03-19 | 1982-09-24 | ||
| JPS57155906U (en) * | 1981-03-25 | 1982-09-30 | ||
| CN103698078A (en) * | 2013-12-20 | 2014-04-02 | 中国北方车辆研究所 | Device for testing pressure of pressure valve of power battery in opening process |
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5736534B2 (en) | 1982-08-04 |
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