A solenoid-actuated valve assembly is provided with reduced noise. A rubber retainer and steel retainer secure the valve within a manifold, and the rubber retainer absorbs longitudinal vibrations.

The valve of a steam trap is opened and closed by operation of a temperature sensitive bimetallic assembly having a stacked configuration with individual bimetallic members of the stacked assembly mov

This invention is a steam trap having a thermostatic type of bellows with two or more discharge valves operated by a single bellows. The trap may also have a flexible valve operating bridge.

A constriction device for a steam trap of a radiator, which may replace prior art thermostatic elements and valves in the steam trap body. The device includes a nozzle body that replaces the valve, an

A pilot-operated steam trap is provided with a series of bimetallic elements which operate sequentially to control the opening and closing of the pilot valve of a pilot-operated steam trap. Each separ