GB519678A - Improvements in or relating to steam isolating valves - Google Patents
Improvements in or relating to steam isolating valvesInfo
- Publication number
- GB519678A GB519678A GB2758938A GB2758938A GB519678A GB 519678 A GB519678 A GB 519678A GB 2758938 A GB2758938 A GB 2758938A GB 2758938 A GB2758938 A GB 2758938A GB 519678 A GB519678 A GB 519678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve member
- valve
- spindle
- stops
- closed position
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/10—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
519,678. Valves. JACKSON & BRO., Ltd., HAMMOND, R., and FISH, J. R. Sept. 22, 1938, No. 27589. [Class 135] A rotary disc isolating valve particularly adapted for use in connection with open or pressure bleaching kiers has the valve member formed as a piston to prevent the escape of steam to the atmosphere. In the form shown in the Figs. the valve member 2 which is turned by a handle 20 is rotatably and slidably mounted on a spindle 11 secured to the casing and is wedged against its seat by turning a hand wheel 12 integral with a nut 13 engaging a thread on the spindle. The diametrically arranged inlet and outlet ports are each surrounded by an annular rubber sealing member 6 having an inturned lip adapted to be pressed by steam pressure against the flat under surface of the valve member. The cylindrical surface of the valve member where it engages the cylinder 5 is provided with a split or unsplit packing ring 9. The intermediate part of the connecting passage in the valve member is bifurcated to pass on either side of the central pivot and a supplementary passage 18 is provided in the valve member adapted, when the main passage is in the closed position, to connect the inlet pipe to the space between the valve member and its seat outside the packing rings 6. This space is connected to drain by a pipe 17. The valve member has a pair of projections 16 spaced 90 degrees apart and adapted to co-operate with a pair of stops 15 spaced 180 degrees apart. One of the stops 15 is fitted with an indicating tablet 21 to show the closed position of the valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2758938A GB519678A (en) | 1938-09-22 | 1938-09-22 | Improvements in or relating to steam isolating valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2758938A GB519678A (en) | 1938-09-22 | 1938-09-22 | Improvements in or relating to steam isolating valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB519678A true GB519678A (en) | 1940-04-03 |
Family
ID=10262099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2758938A Expired GB519678A (en) | 1938-09-22 | 1938-09-22 | Improvements in or relating to steam isolating valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB519678A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7808174A (en) * | 1977-08-05 | 1979-02-07 | Sanne & Wendel As | SAFETY VALVE FOR GAS PIPES. |
AT16036U1 (en) * | 2017-04-20 | 2018-11-15 | Vat Holding Ag | Valve |
-
1938
- 1938-09-22 GB GB2758938A patent/GB519678A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7808174A (en) * | 1977-08-05 | 1979-02-07 | Sanne & Wendel As | SAFETY VALVE FOR GAS PIPES. |
AT16036U1 (en) * | 2017-04-20 | 2018-11-15 | Vat Holding Ag | Valve |
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