GB669676A - Improvements in or relating to return and safety valves for liquids - Google Patents

Improvements in or relating to return and safety valves for liquids

Info

Publication number
GB669676A
GB669676A GB29329/49A GB2932949A GB669676A GB 669676 A GB669676 A GB 669676A GB 29329/49 A GB29329/49 A GB 29329/49A GB 2932949 A GB2932949 A GB 2932949A GB 669676 A GB669676 A GB 669676A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
line
lines
spring
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
GB29329/49A
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.)
TELEPAR AB
Original Assignee
TELEPAR AB
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 TELEPAR AB filed Critical TELEPAR AB
Publication of GB669676A publication Critical patent/GB669676A/en
Expired legal-status Critical Current

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

669,676. Pressure-relief valves. AKTIEBOLAGETTELEPAR. Nov. 16, 1949 [Nov. 16, 1948], No. 29329/49. Class 135. A pressure-relieving device for a hydraulic system comprises a hollow, piston-type, valve 23 urged to the neutral position closing the passage interconnecting the two pressure lines 11, 12 by two opposing springs 14, 15, the spring 14 being housed in the valve, the skirt of which seals off the interior from the line 12 under all working conditions, and the other spring bearing on the opposite, exterior, face of the valve; and the valve is movable in either direction to relieve excess pressure in either line. The device can be applied to a pumping system wherein lines 11, 12 are connected, respectively, to the outlet and inlet lines of the pump. The springs abut at their inner ends against washers 18, 19 seating normally on a collar 25 on a screwed stem 17 by which the loading exerted by spring 14 can be varied. Passages 27 through the closure member ensure that the pressure in line 11 acts also on the underside of the closure member.
GB29329/49A 1948-11-16 1949-11-16 Improvements in or relating to return and safety valves for liquids Expired GB669676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE669676X 1948-11-16

Publications (1)

Publication Number Publication Date
GB669676A true GB669676A (en) 1952-04-09

Family

ID=20314577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29329/49A Expired GB669676A (en) 1948-11-16 1949-11-16 Improvements in or relating to return and safety valves for liquids

Country Status (1)

Country Link
GB (1) GB669676A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220217B (en) * 1963-02-12 1966-06-30 Licentia Gmbh Double-acting safety and circulation valve
CN107725341A (en) * 2017-11-29 2018-02-23 山东博世机械有限公司 A kind of low energy consumption automatic steady die mould membrane pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220217B (en) * 1963-02-12 1966-06-30 Licentia Gmbh Double-acting safety and circulation valve
CN107725341A (en) * 2017-11-29 2018-02-23 山东博世机械有限公司 A kind of low energy consumption automatic steady die mould membrane pump
CN107725341B (en) * 2017-11-29 2023-10-03 山东中聚电器有限公司 Low-energy-consumption automatic pressure-stabilizing diaphragm pump

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