GB2066422A - Solenoid Operated Shut Off Valve with Manual Reset Valve - Google Patents

Solenoid Operated Shut Off Valve with Manual Reset Valve Download PDF

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Publication number
GB2066422A
GB2066422A GB7944306A GB7944306A GB2066422A GB 2066422 A GB2066422 A GB 2066422A GB 7944306 A GB7944306 A GB 7944306A GB 7944306 A GB7944306 A GB 7944306A GB 2066422 A GB2066422 A GB 2066422A
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GB
United Kingdom
Prior art keywords
valve
piston
reset
chamber
seat
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.)
Granted
Application number
GB7944306A
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GB2066422B (en
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.)
Kirkman D F
Original Assignee
Kirkman D F
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 Kirkman D F filed Critical Kirkman D F
Priority to GB7944306A priority Critical patent/GB2066422B/en
Publication of GB2066422A publication Critical patent/GB2066422A/en
Application granted granted Critical
Publication of GB2066422B publication Critical patent/GB2066422B/en
Expired legal-status Critical Current

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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
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Safety Valves (AREA)

Abstract

A solenoid operated stop valve with manual reset comprises a Main Stop Valve 7 having a partially balanced valve member 7 biassed to the closed position by inlet pressure acting in chamber D on a piston part 6 of the stop valve 7. Pressure to the piston is controlled by a Solenoid Valve 11 which can either pass inlet pressure to the piston 6 or vent the piston pressure through a first vent via seat 10. A fully balanced Reset Valve 1 having two seats 4, 5 and which is spring loaded on to its first seat 5 to seal a second vent F is arranged such that when the main valve 7 opens the reset valve 1 is tripped off its seat by the piston 6 to a mid seat position to vent the chamber D through the second vent. The main valve 7 will now remain open regardless of solenoid valve action. Reset to the main valve closed condition is effected by pulling the valve 1 onto its second seat 4 to close the second vent 7. <IMAGE>

Description

**WARNING** start of DESC field may overlap end of CLMS **.
SPECIFICATION Solenoid Operated Shut Off Valve with Manual Reset Valve The device relates to the field of Valves for the control of pressurised media. The device enables a flow of pressurised media to be initiated and maintained even in the event of the subsequent failure of the initiating signal. Closure can only be effected by manual operation of an integral reset valve in the absence of the initiating signal.
The invention comprises 3 basic units; a solenoid operated 3 way Pilot Valve; a partially balanced, soft seated, on-off Main Stage Valve and a fully balanced, spring biassed Reset Valve with manual reset over-ride handle. The function of the combined unit is to supply high pressure media to a device such as an anti- fire nozzle or spray. No flow will occur until the solenoid valve is energised by an electrical signal. After the opening of the main valve the unit will not close and stop the flow until manual operation of the reset valve. The unit will thus continue to control a fire even following destruction of its electrical system.
Description
Referring to Fig. 1 the inlet media operates on the main stage Piston Valve (7) by pressurising chambers A and B. The piston Valve (7) is balanced against pressure except for the area of the central spindle which biasses the Piston Valve (7) to the open condition. The piston item 6 is of larger area than the central spindle of item 7 and the intervening chamber C is vented to atmosphere. The pressurising of chamber D with high pressure media will thus overcome the opening force on Piston Valve (7) urging it to close upon the soft seat (8) preventing flow to the outlet.
Inlet high pressure media passes through the unenergised Solenoid Pilot Valve (11) as this is spring loaded open, into chamber D closing the Piston Valve (7) Operation of the Solenoid (9) closes the Pilot Valve (11) against Seat (12) venting chamber D through seat (10). This permits the Unbalanced Piston Valve (7) to fully open. At the end of its stroke piston valve (7) pushes Piston (6) onto the reset valve (1) causing it to open.
Reset Valve (1) is fully balanced against pressure in chamber D by the equal area balancing sleeve in pressurising chamber H which is coupled to chamber D by the drillway through the centre of the Reset Valve (1). The Spring (2) urges Reset Valve (1) into contact with Soft Seat (5) ensuring no leakage when Piston Valve (7) is closed. When Piston Valve (7) is fully open Piston (6) partially opens Reset Valve (1) venting camber D via chambers E and F. Hence once operated the main stage valve cannot be reset by any action of the Solenoid Valve (9), because pressure cannot build up in chamber D.
To reset the unit the handle of the reset valve (1) is pulled till the valve head of item 1 contacts the seating edge (4) which prevents flow passing through the chambers D, E, and F to vent. In this position the Solenoid (9) can be de-energised and thus close the main stage valve, after which the reset valve (1) may be released.
Claims 1. A stop valve having inlet and outlet ports separated by a resilient seat and a pressure sensitive main valve coupled to a first piston sliding within the body creating a first chamber with drillway communication to inlet pressure; a second larger piston in contact with the first piston creating a second chamber which when pressurised urges the main valve against its resilient seat preventing flow between inlet and outlet; a two position three port pilot valve, centre port communicating with the second chamber, a first vent port closed by a spring biased valve poppet and a port open communicating with inlet pressure, an electrical solenoid actuator which can override the spring biased poppet to close the pressure port and open the first vent port; ; a pressure balanced valve stem spring urged against a resilient seat in drillway communication with the second chamber, moveable by the second piston off the resilient seat to a point approaching a second seat in communication with a second vent, a manual handle on the valve stem by which the valve stem can be further moved against the spring bias to close the second vent port.

Claims (1)

  1. SPECIFICATION Solenoid Operated Shut Off Valve with Manual Reset Valve The device relates to the field of Valves for the control of pressurised media. The device enables a flow of pressurised media to be initiated and maintained even in the event of the subsequent failure of the initiating signal. Closure can only be effected by manual operation of an integral reset valve in the absence of the initiating signal.
    The invention comprises 3 basic units; a solenoid operated 3 way Pilot Valve; a partially balanced, soft seated, on-off Main Stage Valve and a fully balanced, spring biassed Reset Valve with manual reset over-ride handle. The function of the combined unit is to supply high pressure media to a device such as an anti- fire nozzle or spray. No flow will occur until the solenoid valve is energised by an electrical signal. After the opening of the main valve the unit will not close and stop the flow until manual operation of the reset valve. The unit will thus continue to control a fire even following destruction of its electrical system.
    Description
    Referring to Fig. 1 the inlet media operates on the main stage Piston Valve (7) by pressurising chambers A and B. The piston Valve (7) is balanced against pressure except for the area of the central spindle which biasses the Piston Valve (7) to the open condition. The piston item 6 is of larger area than the central spindle of item 7 and the intervening chamber C is vented to atmosphere. The pressurising of chamber D with high pressure media will thus overcome the opening force on Piston Valve (7) urging it to close upon the soft seat (8) preventing flow to the outlet.
    Inlet high pressure media passes through the unenergised Solenoid Pilot Valve (11) as this is spring loaded open, into chamber D closing the Piston Valve (7) Operation of the Solenoid (9) closes the Pilot Valve (11) against Seat (12) venting chamber D through seat (10). This permits the Unbalanced Piston Valve (7) to fully open. At the end of its stroke piston valve (7) pushes Piston (6) onto the reset valve (1) causing it to open.
    Reset Valve (1) is fully balanced against pressure in chamber D by the equal area balancing sleeve in pressurising chamber H which is coupled to chamber D by the drillway through the centre of the Reset Valve (1). The Spring (2) urges Reset Valve (1) into contact with Soft Seat (5) ensuring no leakage when Piston Valve (7) is closed. When Piston Valve (7) is fully open Piston (6) partially opens Reset Valve (1) venting camber D via chambers E and F. Hence once operated the main stage valve cannot be reset by any action of the Solenoid Valve (9), because pressure cannot build up in chamber D.
    To reset the unit the handle of the reset valve (1) is pulled till the valve head of item 1 contacts the seating edge (4) which prevents flow passing through the chambers D, E, and F to vent. In this position the Solenoid (9) can be de-energised and thus close the main stage valve, after which the reset valve (1) may be released.
    Claims
    1. A stop valve having inlet and outlet ports separated by a resilient seat and a pressure sensitive main valve coupled to a first piston sliding within the body creating a first chamber with drillway communication to inlet pressure; a second larger piston in contact with the first piston creating a second chamber which when pressurised urges the main valve against its resilient seat preventing flow between inlet and outlet; a two position three port pilot valve, centre port communicating with the second chamber, a first vent port closed by a spring biased valve poppet and a port open communicating with inlet pressure, an electrical solenoid actuator which can override the spring biased poppet to close the pressure port and open the first vent port; ; a pressure balanced valve stem spring urged against a resilient seat in drillway communication with the second chamber, moveable by the second piston off the resilient seat to a point approaching a second seat in communication with a second vent, a manual handle on the valve stem by which the valve stem can be further moved against the spring bias to close the second vent port.
    **WARNING** end of CLMS field may overlap start of DESC **.
GB7944306A 1979-12-21 1979-12-21 Solenoid operated shut off valve with manual reset valve Expired GB2066422B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7944306A GB2066422B (en) 1979-12-21 1979-12-21 Solenoid operated shut off valve with manual reset valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7944306A GB2066422B (en) 1979-12-21 1979-12-21 Solenoid operated shut off valve with manual reset valve

Publications (2)

Publication Number Publication Date
GB2066422A true GB2066422A (en) 1981-07-08
GB2066422B GB2066422B (en) 1983-10-12

Family

ID=10510038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7944306A Expired GB2066422B (en) 1979-12-21 1979-12-21 Solenoid operated shut off valve with manual reset valve

Country Status (1)

Country Link
GB (1) GB2066422B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218783A (en) * 1988-05-17 1989-11-22 Teves Gmbh Alfred Hydraulic unit
US5195718A (en) * 1991-09-18 1993-03-23 May Gordon H Sprinkler valve
WO1993006398A1 (en) * 1991-09-18 1993-04-01 May Gordon H Sprinkler valve
CN109058565A (en) * 2018-11-05 2018-12-21 成都华科阀门制造有限公司 A kind of novel quick valve with unloaded equilibrium function

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218783A (en) * 1988-05-17 1989-11-22 Teves Gmbh Alfred Hydraulic unit
FR2631595A1 (en) * 1988-05-17 1989-11-24 Teves Gmbh Alfred HYDRAULIC UNIT FOR A PRESSURE REGULATED BRAKING SYSTEM
GB2218783B (en) * 1988-05-17 1992-02-26 Teves Gmbh Alfred Hydraulic unit
US5195718A (en) * 1991-09-18 1993-03-23 May Gordon H Sprinkler valve
WO1993006398A1 (en) * 1991-09-18 1993-04-01 May Gordon H Sprinkler valve
US5301919A (en) * 1991-09-18 1994-04-12 May Gordon H Sprinkler valve
CN109058565A (en) * 2018-11-05 2018-12-21 成都华科阀门制造有限公司 A kind of novel quick valve with unloaded equilibrium function
CN109058565B (en) * 2018-11-05 2024-03-26 成都华科阀门制造有限公司 Quick valve with no-load balancing function

Also Published As

Publication number Publication date
GB2066422B (en) 1983-10-12

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