Abstract: In a reducing valve assembly having a fluid inlet port and a fluid outlet port with a main valve for controlling flow between the inlet and outlet port, the main valve includes a main valve member which is actuated by an operating piston including a piston rod. In order to improve the flow characteristics of the assembly, a movable wall of the piston which transmits displacement through the piston rod to the valve member is connected with the piston rod by shaping the wall extending therebetween with a spherically curved configuration outwardly in a diametral direction from the piston rod.

Abstract: In a reducing valve assembly including a vapor-liquid separator, a valve casing, having therein a valve mechanism defining a valve orifice and defining inlet and outlet openings having the reducing valve mechanism interposed therebetween, is arranged with the valve casing extended below the reducing valve to define a sump chamber, the extended portion of the casing extending from a part thereof which surrounds the valve orifice. An annular partition is provided at the upper part of the sump chamber to form an annular space between the partition and the extended portion of the valve casing, the annular space being arranged to communicate with the inlet opening from above and with the sump chamber from below.

Abstract: A steam trap including a buoyant float member is equipped with a valve seat assembly which is closed by abutment of the float with a valve seat portion surrounding the flow orifice. The assembly is formed with a float abutment member made of carbide located adjacent the valve seat surface on the outer periphery thereof and located to serve as a contact point for the float member and to define a fulcrum about which the float may pivot when moving into and out of contact with the valve seat surface. The material of the float abutment member ensures a longer service life and a more secure closure of the flow orifice.

Abstract: A steam trap assembly is formed with a casing defining a valve chamber therein with an inlet for introducing fluid generally consisting of condensate and steam into said chamber and with an outlet for discharging condensate from the chamber. A bucket-type float freely movable within the valve chamber is formed with an outer surface portion adapted to engage and disengage a valve seat defining the orifice of an outlet passage through which condensate is discharged from said steam trap. The float is structured as a hollow shell member defining a downwardly directed opening and with a generally continuous body having a substantially spherical configuration extending to a mouthpiece member which is fitted in the opening of the spherical shell member to define the opening with a generally circular configuration. The mouthpiece member has a weight characteristic tending to bias the center of gravity of the float member downwardly toward the opening.

Abstract: An apparatus is provided for discharging from a condensate sump large amounts of condensate as well as high viscous liquid by means of an electrically driven valve which is arranged at the outlet of the condensate sump and which is controlled to open and close in response to the position of a float whose location within the condensate sump is sensed by proximity switch means connected to operate the valve.

Abstract: A spherical valve assembly wherein a valve sphere is operatively fitted in position within a fluid passageway through said valve assembly provides an integrally formed stem member having a valve stem and a sustaining stem for said valve sphere, with the integrally formed stem member extending through the valve sphere in supporting engagement therewith. A valve casing is configured to provide a valve stem orifice and a sustaining stem recess wherein the valve stem and the sustaining stem are, respectively, mounted. Valve seat members are located to be urged against the valve sphere which is rotated to open and close the valve. By means of the specific structural orientation of the assembly, particularly the integrally formed stem member including the valve stem and the sustaining stem, an improved valve assembly which may be manufactured more easily is provided.

Abstract: To return condensate from a system using steam to a boiler, a sump chamber is arranged to collect the condensate and to return the condensate under pressure to the boiler when a float within the sump opens a pilot valve. High pressure gases from a compressor are supplied to a valve chamber which is in communication with the sump chamber through a valve. Normally, the pilot valve is closed and flow of the high pressure gases into the sump chamber is blocked. When the pilot valve is opened it, in turn, passes a flow of the high pressure gas so that it opens the valve in the valve chamber for admitting the high pressure gas into the sump chamber. When the valve is closed so that no high pressure gas enters the sump chamber, the sump chamber is connected to an exhaust port whereby it can be vented.

Abstract: 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 moving between a first and a second position in response to temperatures within the steam trap. The bimetallic members are arranged to vary the length of the bimetallic stacked assembly to open and close the valve of the steam trap, with the length of the stack being, preferably, diminished in response to a higher level of temperature.