GB1431695A - Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies - Google Patents

Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies

Info

Publication number
GB1431695A
GB1431695A GB1842273A GB1842273A GB1431695A GB 1431695 A GB1431695 A GB 1431695A GB 1842273 A GB1842273 A GB 1842273A GB 1842273 A GB1842273 A GB 1842273A GB 1431695 A GB1431695 A GB 1431695A
Authority
GB
United Kingdom
Prior art keywords
rod
spring
line pressure
moves
diaphragm
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
GB1842273A
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.)
Kah C L C
Original Assignee
Kah C L C
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 Kah C L C filed Critical Kah C L C
Priority to GB1842273A priority Critical patent/GB1431695A/en
Publication of GB1431695A publication Critical patent/GB1431695A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

1431695 Valves C L C KAH Jnr 17 April 1973 18422/73 Heading F2V [Also in Divisions G3 and G4] A valve for use in an irrigation sprinkler system has a main valve member 906 operated by the fluid-pressure in chamber 962 acting on a diaphragm 908 and under the control of a pilot valve 922. The pilot valve is operated by a diaphragm 926 via a lost-motion connection 930, 932 which diaphragm is connected to an indexing mechanism comprised by a spring-load bar 956 which is moved by a cam 952 on the reciprocatable rod 928 and engages ratchet teeth 976 on element 960. The latter is spring- loaded to a reset position, co-operates with a spring-loaded pawl and is indexed once for each reciprocable movement of the rod 928. A pin(s) (988) in one or more of a plurality of holes in the element engage a spring-loaded pivoted member 986 in one or more positions of the element 960 to move it out of alignment with the bore in which the rod 928 reciprocates. Three springs 940, 942, 944 sequentially abut the transverse bar 954 on the rod 928 as it moves upwards. The arrangement is such that during normal line pressure the rod is in a position in which spring 940 only is compressed. Rise in line pressure to a first predetermined pressure moves the rod to a position in which spring 942 is compressed and the element 960 is indexed. Rise in line pressure to a second higher predetermined pressure moves the rod to compress spring 944 if the member 986 has been moved out of alignment with the rod, the pilot valve being opened only in this position of the rod. If the line pressure is reduced below normal the bar 956 is moved out of engagement with the element 960 and moves the pawl also out of engagement; the element 960 can thus return under its spring-loading to an initial reset position. A plurality of such valves are incorporated in the system, valves sequentially opening at different index positions.
GB1842273A 1973-04-17 1973-04-17 Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies Expired GB1431695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1842273A GB1431695A (en) 1973-04-17 1973-04-17 Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1842273A GB1431695A (en) 1973-04-17 1973-04-17 Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies

Publications (1)

Publication Number Publication Date
GB1431695A true GB1431695A (en) 1976-04-14

Family

ID=10112173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1842273A Expired GB1431695A (en) 1973-04-17 1973-04-17 Irrigation sprinkler system control employing pilot operated pressure actuated and sequenced valve assemblies

Country Status (1)

Country Link
GB (1) GB1431695A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1790891A1 (en) 2005-11-25 2007-05-30 Leotech S.r.l. Dispensing apparatus
EP1923613A1 (en) * 2006-11-14 2008-05-21 Braglia SRL A valve device, in particular for use in agricultural activities
CN111226065A (en) * 2017-10-26 2020-06-02 多若特管理控制阀有限公司 Dual set point pressure regulation system
GB2600678A (en) * 2020-10-07 2022-05-11 Norcros Group Holdings Ltd A water heater
US11803199B2 (en) 2017-10-26 2023-10-31 Aquestia Ltd. Dual set-point pressure regulating system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1790891A1 (en) 2005-11-25 2007-05-30 Leotech S.r.l. Dispensing apparatus
EP1923613A1 (en) * 2006-11-14 2008-05-21 Braglia SRL A valve device, in particular for use in agricultural activities
CN111226065A (en) * 2017-10-26 2020-06-02 多若特管理控制阀有限公司 Dual set point pressure regulation system
US11803199B2 (en) 2017-10-26 2023-10-31 Aquestia Ltd. Dual set-point pressure regulating system
GB2600678A (en) * 2020-10-07 2022-05-11 Norcros Group Holdings Ltd A water heater

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee