GB519568A - Improvements in or relating to valves for steam or pressure vessels - Google Patents
Improvements in or relating to valves for steam or pressure vesselsInfo
- Publication number
- GB519568A GB519568A GB1827938A GB1827938A GB519568A GB 519568 A GB519568 A GB 519568A GB 1827938 A GB1827938 A GB 1827938A GB 1827938 A GB1827938 A GB 1827938A GB 519568 A GB519568 A GB 519568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- secured
- spring
- bellows
- valves
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
519,568. Valves. HURST, W. F. F. MARTIN-, BRITISH THERMOSTAT CO., Ltd., DELANEY, C. T., and GALLAY, Ltd. June 20,1938, No. 18279. [Class 135] A relief valve device particularly adapted for use on steam heating systems for aircraft cabins is adapted to relieve excessive pressure or vacuum in the system and also to permit the escape of air from the system during the process of warming up. The air-venting comprises an annular lift valve l secured to a thermal bellows m charged with the same liquid as is used in the system or with one having a slightly lower boiling point. The. thermal bellows is adjustably secured to the lower perforated end of a sleeve e normally held by a spring h with a shoulder f in engagement with a ledge g on a flanged plate b secured to an outer cylindrical casing a. The sleeve e which carries a synthetic rubber seat y for the valve l is secured to the lower end of a bellows j which in turn is fixed to the top of the casing. The pressure and vacuum relief r is housed within the valve l and is normally held closed by a spring u housed in a guide socket s. With excessive vacuum the valve r is lifted away from its seat against the action of the spring u. With excessive pressure the bellows j is compressed against the action of the spring allowing both valves l and r to move upwards until the valve r is unseated by contact with a pin v adjustably secured to the casing cover. This cover is provided with outlet apertures c leading to a discharge conduit d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1827938A GB519568A (en) | 1938-06-20 | 1938-06-20 | Improvements in or relating to valves for steam or pressure vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1827938A GB519568A (en) | 1938-06-20 | 1938-06-20 | Improvements in or relating to valves for steam or pressure vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB519568A true GB519568A (en) | 1940-04-01 |
Family
ID=10109735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1827938A Expired GB519568A (en) | 1938-06-20 | 1938-06-20 | Improvements in or relating to valves for steam or pressure vessels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB519568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501185A (en) * | 1945-12-07 | 1950-03-21 | Metals & Controls Corp | Temperature and pressure operated valve |
| US2535974A (en) * | 1947-07-02 | 1950-12-26 | Robertshaw Fulton Controls Co | Thermostatically controlled pressure cap for radiators |
-
1938
- 1938-06-20 GB GB1827938A patent/GB519568A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501185A (en) * | 1945-12-07 | 1950-03-21 | Metals & Controls Corp | Temperature and pressure operated valve |
| US2535974A (en) * | 1947-07-02 | 1950-12-26 | Robertshaw Fulton Controls Co | Thermostatically controlled pressure cap for radiators |
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