GB1239416A - Improvements in or relating to thermostatic mixing valves - Google Patents

Improvements in or relating to thermostatic mixing valves

Info

Publication number
GB1239416A
GB1239416A GB4062368A GB1239416DA GB1239416A GB 1239416 A GB1239416 A GB 1239416A GB 4062368 A GB4062368 A GB 4062368A GB 1239416D A GB1239416D A GB 1239416DA GB 1239416 A GB1239416 A GB 1239416A
Authority
GB
United Kingdom
Prior art keywords
inlet
valve
ports
cold
hot
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
GB4062368A
Inventor
Derek John Goldsmith
Derek Franzis Pratt
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 filed Critical
Publication of GB1239416A publication Critical patent/GB1239416A/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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
    • G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
    • G05D23/1326—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element details of the sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

1,239,416. Temperature responsive actuating element. D.J. GOLDSMITH AND D.F. PRATT [trading as PRATT & GOLDSMITH CO. Aug. 26, 1968, No.40623/68. Heading G1D. [Also in Division F2] A thermostatic mixing valve comprises a housing 1 with a hot inlet 2, a cold inlet 3 and an outlet 4 the ratio of quantities of fluid flowing from the inlet ports to the outlet ports being controlled as a function of temperature by element comprising a bi-metallic member 11 in the form of a coiled coil i.e. a bi-metallic strip bent into the form of a helix, this helix then being formed into a larger helix. A hollow control member 5 is disposed within the housing 1 and this has a larger diameter portion 6 at one end with hot mixing ports 7 and cold mixing ports 8 separated by a barrier 9 in the portion 6. One end of the bi-metallic member 11 is secured to a temperature control member 14 and the other end controls the position of an annular valve member 10 sliding on the larger diameter portion 6 of the member 5, the bi-metallic member 11 surrounding the member 5. The axial position of the valve member 10 controls the relative proportions of fluid passing through the hot and cold mixing ports 7, 8. The temperature control member 14 is adjustable axially by means of a manually rotatable member 20 and co-operating multi-stat quick action screw threads on the members 14, 20. The member 20 is rotated inside the housing 1 by a control knob 21 on a drive member 23, co-operating teeth 25, 26 being provided between the members 23, 20. In the position shown in the figure the hot inlet 2 is closed by a valve member 31 engaging.on O-ring seat 32 and the cold inlet is closed similarly by a valve member 18 engaging a seat 17. A control member 19 with a knob 22 having screw threads engaging with threads on the member 20 holds the valve members 31, 18 closed against their respective seats against the action of springs 15, 33 and when the knob 22 is rotated to open these valve members, the member 5 being held in equilibrium between these two springs which are of equal strength. Adjustment is provided by an adjustor 16. Fluid for the cold mixing ports 8 flows from the inlet 3 through the hollow member 5.
GB4062368A 1968-08-26 1968-08-26 Improvements in or relating to thermostatic mixing valves Expired GB1239416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4062368 1968-08-26

Publications (1)

Publication Number Publication Date
GB1239416A true GB1239416A (en) 1971-07-14

Family

ID=10415805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4062368A Expired GB1239416A (en) 1968-08-26 1968-08-26 Improvements in or relating to thermostatic mixing valves

Country Status (1)

Country Link
GB (1) GB1239416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242725A (en) * 1990-03-17 1991-10-09 Horne Engineering Co Ltd Thermostatic mixing valve.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242725A (en) * 1990-03-17 1991-10-09 Horne Engineering Co Ltd Thermostatic mixing valve.
GB2242725B (en) * 1990-03-17 1993-12-15 Horne Engineering Co Ltd Improved thermostatic mixing valve

Similar Documents

Publication Publication Date Title
GB951525A (en) Thermally actuated fluid flow control valve
US4381073A (en) Thermostatically controlled cold and hot water mixer
US1996330A (en) Fluid control unit
US3610279A (en) Mixing valve construction, system and method
CA1094917A (en) Water mixing valve with temperature regulation, temperature setting and volume control
GB1043716A (en) Improvements in or relating to fluid-flow control valves
US4164321A (en) Thermostatic mixing valve for two fluids
GB1239416A (en) Improvements in or relating to thermostatic mixing valves
SE442900B (en) DEVICE FOR INBOARD CONTROL OF AT LEAST TWO FLOWING MEDIA
US3762638A (en) Thermostatic mixing valve
US5427312A (en) Thermostatic mixing valve and method of use thereof
US2578796A (en) Thermostatic controlled pressure operated mixing faucet
US3361347A (en) Thermostatically controlled gas valve
US2609146A (en) Mixing valve
US3684168A (en) Mixing valve construction, system and method
IL32876A (en) Temperature responsive elements and thermostatic mixing valves using the same
US3000571A (en) Mixing cock with thermostatic cold-water compensation
US3448922A (en) Thermostatically controlled governor valves
JPS58136945A (en) Instantaneous water heater
US3554442A (en) Valves
GB1305083A (en)
US3318525A (en) Fluid temperature regulation mixing valve
DE880924C (en) Control device for gas water heater
US2670901A (en) Fluid mixing valve
US2110884A (en) Thermostatic device

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years