GB185506A - Improvements in reducing valves - Google Patents

Improvements in reducing valves

Info

Publication number
GB185506A
GB185506A GB15583/21A GB1558321A GB185506A GB 185506 A GB185506 A GB 185506A GB 15583/21 A GB15583/21 A GB 15583/21A GB 1558321 A GB1558321 A GB 1558321A GB 185506 A GB185506 A GB 185506A
Authority
GB
United Kingdom
Prior art keywords
valve
steam
pressure
acted
ports
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
Application number
GB15583/21A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB15583/21A priority Critical patent/GB185506A/en
Publication of GB185506A publication Critical patent/GB185506A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve

Abstract

185,506. Spencer, H. W. June 6, 1921. Pressure-reducing valves of the kind in which the valve is opened by a piston acted upon by steam pressure. The valve member H is so mounted in an expansion member J<2> that the movement of the valve first opens the chamber to the outlet only, and afterwards ports J<3> leading from the inlet are opened to effect a preliminary reduction of the steam pressure. The passage of steam through the ports is controlled by a cylindrical extension H<2> of the valve member. The piston E operating the valve is acted upon by the high pressure steam, which passes through a pilot valve under the control of a diaphragm acted upon by the reduced-pressure steam. A valve F operated by a spindle G may close a passage H<1> in the main valve and allow the pressure of the steam leaking past the, cylindrical extension to close the main valve.
GB15583/21A 1921-06-06 1921-06-06 Improvements in reducing valves Expired GB185506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15583/21A GB185506A (en) 1921-06-06 1921-06-06 Improvements in reducing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15583/21A GB185506A (en) 1921-06-06 1921-06-06 Improvements in reducing valves

Publications (1)

Publication Number Publication Date
GB185506A true GB185506A (en) 1922-09-06

Family

ID=10061705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15583/21A Expired GB185506A (en) 1921-06-06 1921-06-06 Improvements in reducing valves

Country Status (1)

Country Link
GB (1) GB185506A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475898B1 (en) * 1964-02-21 1970-10-15 Abex Corp Pilot operated pressure reducing valve
DE2429205A1 (en) * 1974-04-11 1975-10-23 Atos Oleodinamica Spa ELECTRICALLY MODULATED HYDRAULIC PRESSURE REGULATING VALVE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475898B1 (en) * 1964-02-21 1970-10-15 Abex Corp Pilot operated pressure reducing valve
DE2429205A1 (en) * 1974-04-11 1975-10-23 Atos Oleodinamica Spa ELECTRICALLY MODULATED HYDRAULIC PRESSURE REGULATING VALVE

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