GB587157A - Improvements in and relating to valves - Google Patents
Improvements in and relating to valvesInfo
- Publication number
- GB587157A GB587157A GB479744A GB479744A GB587157A GB 587157 A GB587157 A GB 587157A GB 479744 A GB479744 A GB 479744A GB 479744 A GB479744 A GB 479744A GB 587157 A GB587157 A GB 587157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- secured
- isolation
- bellows
- gland
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
Abstract
587,157. Valves. CRAIG, A., HENSHAW, H. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 15, 1944, No. 4797. [Class 135] An isolation valve, particularly for use in plants working at reduced pressures or with noxious fluids, incudes a closure member having a rubber disc 9, Fig. 1, which coacts with a removable seat 5 held in position by an elastic ring 6 and a gland 7 which also secures the inlet pipe 8 in position, the outlet pipe 2 being similarly secured. Ingress of air between the removable valve spindle 10 and the body 1 is prevented by a bellows soldered at its inner end to the body and at its outer end to a cap nut spindle 11. Thus, the bellows can be' assembled and inspected with the spindle and the cover 13 removed. Operation of the valve is effected by the screw cap 14. Fig. 2 shows a combined isolation and control valve in which the bellows is secured at its inner end to a gland 19, secured to the body and sealed by a ring 18. Isolation is effected by the rubber disc 17, and flow controlled by a parabolic nose 16. In a modified form of isolation valve, the inlet pipe is secured to the body by a separate sealing ring and gland. By the provision of a range of valve spindles and matched seatings, the valve can be made to cover a wide range of flow rates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB479744A GB587157A (en) | 1944-03-15 | 1944-03-15 | Improvements in and relating to valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB479744A GB587157A (en) | 1944-03-15 | 1944-03-15 | Improvements in and relating to valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB587157A true GB587157A (en) | 1947-04-16 |
Family
ID=9783969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB479744A Expired GB587157A (en) | 1944-03-15 | 1944-03-15 | Improvements in and relating to valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB587157A (en) |
-
1944
- 1944-03-15 GB GB479744A patent/GB587157A/en not_active Expired
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