Thermostatic valve

Details Thermostatic valve Thermostatic valve

1975-06-23

1977-04-12

Wayner, William E.

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

236 56, 236 99C, F16K 4900

Patent

active

040169014

ABSTRACT:
A fluid temperature actuated valve for trapping fluids in a system, having particular utility as a steam trap. The valve is closed by the expansion of a wax pellet type thermal actuator working against the valve opening force of an operating spring. The valve may be provided with an ambient sensing on-off control in the form of an air temperature responsive actuator which is coupled to the fluid sensing actuator by a suitable insulator. The air sensing actuator upon the occurrence of a predetermined ambient temperature condition will displace the fluid sensing actuator a sufficient degree to prevent the opening of the valve. The valve with the ambient sensing control may be employed as the only control on a steam tracer line, serving the dual function of a steam trap as well as an on-off control response to the ambient temperature.

REFERENCES:
patent: 1694641 (1928-12-01), Crosby
patent: 2229529 (1941-01-01), Smith
patent: 2914251 (1959-11-01), Morgan
patent: 3096936 (1963-07-01), Woods
patent: 3118648 (1964-01-01), Campbell
patent: 3845932 (1974-11-01), Fontaine

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