GB871872A - Improvements in or relating to thermostatically controlled gas fired water heaters - Google Patents

Improvements in or relating to thermostatically controlled gas fired water heaters

Info

Publication number
GB871872A
GB871872A GB870558A GB870558A GB871872A GB 871872 A GB871872 A GB 871872A GB 870558 A GB870558 A GB 870558A GB 870558 A GB870558 A GB 870558A GB 871872 A GB871872 A GB 871872A
Authority
GB
United Kingdom
Prior art keywords
valve
water
seat
open
pass
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
GB870558A
Inventor
Douglas Alfred Whittle
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.)
Gas Council
Original Assignee
Gas Council
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 Gas Council filed Critical Gas Council
Priority to GB870558A priority Critical patent/GB871872A/en
Priority to BE576814A priority patent/BE576814A/en
Publication of GB871872A publication Critical patent/GB871872A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/01Control of temperature without auxiliary power
    • G05D23/02Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/022Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed within a regulating fluid flow

Landscapes

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

Abstract

871,872. Supply and delivery arrangements for water-heaters; temperatureresponsive actuating-elements. GAS COUNCIL. March 18, 1959 [March 18, 1958], No. 8705/58. Classes 64(1) and 64(2) [Also in Group XXIX] The gas flow to the burner 36 of a waterheater is controlled by the hot water flow by means of a diaphragm or by means of a valve having a stem 43 operated by a pivoted flap 42, and also at the outlet of the heater, before the hot water delivery pipe 24, there is a temperature-responsive element 18, acting as a water valve with a seat 28, and a manual water valve 38. When the valve 38 is open, a flow of water to open the gas valve under cold conditions is ensured by a by-pass 29 across the valve 18 or the valve is adjusted so as not to close completely. The element 18 has an elastic plug 11, with a bonded stainless steel facing 14, in a brass or stainless steel casing 10 which also contains wax 9. Embedded in the plug 11 is one end of a pin 15, the other end being adjustably fixed so that on heating and expansion of the wax the element 18 moves away from the seat 28 to open the valve. In another embodiment, Fig. 2 (not shown), the thermostatic element is positioned on the downstream side of the valve seat 28 and the manually operated valve 38 is disposed between the thermostatic valves and the heat exchanger 35, an outside by-pass pipe being provided. In a further embodiment, Fig 3 (not shown), the manually controlled water valve is on the cold water side of the heat exchanger 35. In other modifications, Figs. 4-8 (not shown), the form of the thermostatic valve seating 28 is varied and in some the facing 14 constitutes the valve closure surface. The by-pass may be provided with an adjustable restriction.
GB870558A 1958-03-18 1958-03-18 Improvements in or relating to thermostatically controlled gas fired water heaters Expired GB871872A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB870558A GB871872A (en) 1958-03-18 1958-03-18 Improvements in or relating to thermostatically controlled gas fired water heaters
BE576814A BE576814A (en) 1958-03-18 1959-03-18 Improvements to thermostats for maintaining the temperature of a fluid heated by a reheater at an essentially constant value.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB870558A GB871872A (en) 1958-03-18 1958-03-18 Improvements in or relating to thermostatically controlled gas fired water heaters

Publications (1)

Publication Number Publication Date
GB871872A true GB871872A (en) 1961-07-05

Family

ID=9857655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB870558A Expired GB871872A (en) 1958-03-18 1958-03-18 Improvements in or relating to thermostatically controlled gas fired water heaters

Country Status (2)

Country Link
BE (1) BE576814A (en)
GB (1) GB871872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183789A (en) * 1985-12-10 1987-06-10 Caradon Mira Ltd Valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183789A (en) * 1985-12-10 1987-06-10 Caradon Mira Ltd Valve
GB2183789B (en) * 1985-12-10 1990-01-04 Caradon Mira Ltd Valve

Also Published As

Publication number Publication date
BE576814A (en) 1959-07-16

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