Abstract: A steam trap includes a body having a flow passageway therethrough between an inlet connectable to a steam pipeline and an outlet connectable to a condensate drain line. The flow passageway has a first flow restriction defined by a first venturi orifice to pass condensate therethrough while restricting the flow of live steam, and a second flow restriction, downstream of the first flow restriction. The second flow restriction is adapted to allow condensate flow therethrough while restricting the flow of flash steam.

Abstract: A steam trap includes a replaceable condensate nozzle cartridge with a through passage forming a venturi nozzle in a straight-line working fluid flow path. The venturi through passage includes a venturi nozzle insert that reduces the pressure of the working fluid to cause the liquid water in the working fluid to flash and restrict the flow of steam through the passage. The condensate nozzle is located in a reduced pressure discharge chamber into which a nozzle outlet discharges water condensate extracted by the nozzle and emptied from a trap outlet. The reduced pressure discharge chamber has an access opening sealed by a removable cover to allow the nozzle cartridge to be removed and replaced if necessary, without removing the steam trap from the process line. Locating the removable nozzle cartridge in a lower pressure region of the steam trap overcomes rating limitations on prior steam traps with replaceable venturi nozzles.

Abstract: An annular fluid flow control or metering device comprises: first and second annular plates disposed in an annular flow path, the first annular plate and second annular plates being made of different first and second materials, the first annular plate having a lower first coefficient of thermal expansion than a second coefficient of thermal expansion of the second annular plate, the first annular plate abutting or in contact with the second annular plate, the first annular plate including at least one first metering aperture, and the second annular plate being more thermally responsive than the first annular plate wherein the second annular plate being configured to radially grow and shrink to at least partly obstruct the at least one first metering aperture for metering or controlling a flow of fluid through the at least one first metering aperture.

Abstract: A valve comprises an assembly of elastomeric elements confined in a cylindrical space, with one end of the assembly engageable with a valve seat at one end of the cylindrical space. The valve is constructed to provide three successive converging and diverging sections in the fluid flow path, the intermediate section being provided by the valve element and seat. The restrictions exerts a choking for maintaining pressure in a steam system when the valve is used as a steam trap. A rigid, abrasion-resistant element, may be incorporated into one of the elastomeric elements, and a thermally responsive wax may be incorporated into one of the elements to alter its expansion characteristics. A plunger may be incorporated into the valve to exert a force on the elastomeric elements, allowing adjustment of the degree of subcooling when the device is used as a steam trap.

Abstract: An actuation device capable of changing its operating condition between a stable rest position and a stable work position has a monostable actuation unit with a body and at least a shaft movable as a function of the energization available to the actuation unit, and a kinematic motion assembly for converting the movement of the shaft into a bistable actuation, the kinematic motion assembly including a slider linearly movable in response to action of the shaft and a device for converting subsequent linear movements of the shaft in the passage of the slider between the stable positions and the maintaining of the same.

Abstract: The bimetallic plates of the steam trap disclosed each comprise three same-direction active arms next to one another extending transversely to a center line. On the center line two active arms extend in opposite directions to one another and transversely to the other active arms. On the side of the bimetallic plates which curve concavely when deflected there are provided projections as support portions or faces for the active arms. The projections of at least two active arms project beyond those of the other active arms. The projections of the active arms come into effect at different temperatures and with accumulative force. The bimetallic plates therefore have a closing force line closely adapted to the saturated steam curve.

Abstract: An actuator with an electrically heatable operating element, the housing of the operating element being held stationary in a mount of a base body, and a transfer element, which comprises two plastic molded parts, is provided between the piston and the element to be adjusted.

Abstract: The steam trap constitutes a miniaturized single block set, which regulator integral element are assembled inside a single part body with a ringing anchorage slot for the regulator filter and keyways for placement of the lugs of a washer acting as a wedge key, under which is located a guiding nut of the respective plug carrying spindle that forms part of the regulator. This washer has a polygonal passage inside which is located a V shaped portion of the guiding nut, preventing its turn whenever the plug carrying spindle is turned to effect the regulation, spindle which does furthermore pass through a bimetallic package and through another lower nut, which last two elements complete the regulator. The steam trap thus obtained does not have a cover, sealing joint and cover-main body joining elements, allowing the ready inspection and handling of the internal elements that make up the regulator.

Abstract: A post structure which includes a support pole, a casing, and spring clips for securing the casing to the pole. The spring clips each include a spiral portion which grips the pole, and arms which project outward to engage the inner sidewalls of the casing. The spring clips are constructed to permit the casing to be moved downwardly over the spring clips during installation. However, the spring clips effectively anchor the casing to the pole to prevent any upward movement of the casing for removal.

Abstract: A disk type steam trap having a valve disk adapted to engage a valve seat with a double-coiled bimetallic member being provided operatively interposed between the valve disk and the valve seat on one side of the valve seat to lift and lower the valve disc relative to the valve seat in response to temperature change. The bimetallic member comprises a double-coiled body expanding at lower temperatures and contracting at higher temperatures.

Abstract: A bimetal steam trap is disclosed, which includes a temperature-responsive valve arrangement and a bimetallic column formed of a plurality of pairs of bimetallic discs which are superposed with each other. The valve arrangement has a valve element normally biased by a spring toward its open position, which biasing force is overcome by the thermal expansion axial thrust generated by the bimetallic column when condensation temperature within the steam trap is above a predetermined level. To permit an axial displacement of the valve element in precise alignment with associated valve opening, an elongate valve member is provided at one end with the valve element, and serves to support the bimetallic column as an integrated sub-assembly.

Abstract: A disc valve member (5) is disclosed that can be fitted to a thermodynamic steam trap (1) without modification of the trap. The disc valve member has an internal chamber (7) and perforated portions (8,9) through which air can escape from a chamber (6) in which the disc valve member floats when fitted in a trap, it being desirable that such air escape should be possible during start-up conditions in a steam line. At normal operating temperature, a bi-metal disc (10) within the internal chamber (7) of the disc valve member is snapped-over to a position in which the path for air escape from the trap chamber (6) is closed, and the disc valve member operates as an imperforate member.

Abstract: A thermostatic trap for a heating system having a feed pipe connected to a source of steam and a discharge pipe for discharge of condensate. Included in the trap is a housing defining a volume and comprising a bowl shaped body, a removable cover therefor, a housing inlet pipe portion projecting from a side wall portion of the body and adapted for connection to the discharge pipe, a housing outlet pipe portion projecting from a bottom wall portion of the body, and an outlet orifice defined by the bottom wall portion and extending between the volume and the outlet pipe portion. Retained within the volume is a valve body means comprising an end wall, a side wall and a retaining ring portion that together define a valve chamber, the end wall defining a valve inlet opening communicating with the chamber and an annular valve seat within the chamber and encircling the valve inlet opening. The valve body means defines a valve outlet pipe opening into the chamber and retained in the outlet orifice.

Abstract: A steam trap with a closure element or valve disposed on the low pressure side cooperating with a valve seat, the valve being actuated by a control unit disposed in the high pressure chamber of the steam trap. The control unit includes a plurality of bimetallic spring elements each having a support portion and an operative portion and different actuation temperatures which act on the valve stem to close the valve on the valve seat. The support portions of the bimetallic spring elements engage a stationary support of said steam trap and the operative portions thereof engage the valve stem. The engagement of the bimetallic spring elements with the valve stem is such that when the valve is closed by the action of the bimetallic spring elements having the higher actuation temperatures, the bimetallic spring elements having the lower actuation temperatures are unaffected thereby and thus not stressed by the spring forces of the bimetallic spring elements of the higher actuation temperatures.

Abstract: In a discharge device for a condensate operative within a given temperature range, and including a housing, a valve seat disposed in the housing, a closure part cooperating with the valve seat and subjected to an inlet pressure, a bimetallic snap disc carrying the closure part, being supported in the housing, subjected to the inlet pressure, and moving towards the valve seat upon an increase of temperature within the temperature range, the improvement includes an entrainment device carried by the closure part and connected to the bimetallic snap disc, wherein the closure part and the bimetallic snap disc define a central axis, and the closure part is movable along a path defined by the axis relative to the bimetallic snap disc, the bimetallic snap disc has an opening snap stroke, a closing snap stroke, and a snap stroke portion common with the opening and closing snap strokes, and exerting in a predetermined region a force in a closing direction, and wherein the valve seat is disposed within the predetermined

Abstract: A steam trap with a closure element or valve disposed on the low pressure side cooperating with a valve seat, the valve being actuated by a control unit disposed in the high pressure chamber of the steam trap. The control unit includes a plurality of bimetallic spring elements each having a support portion and an operative portion and different actuation temperatures which act on the valve stem to close the valve on the valve seat. The support portions of the bimetallic spring elements engage a stationary support of said steam trap and the operative portions thereof engage the valve stem. The engagement of the bimetallic spring elements with the valve stem is such that when the valve is closed by the action of the bimetallic spring elements having the higher actuation temperatures, the bimetallic spring elements having the lower actuation temperatures are unaffected thereby and thus not stressed by the spring forces of the bimetallic spring elements of the higher actuation temperatures.

Abstract: Steam trap structure including a bi-metal strip for actuating valve means to control passage of steam through the steam trap in accordance with the temperature within the steam trap. The bi-metal strip may be straight or may have an arcuate portion on one end thereof and is constructed of alternate layers of steel and brass adjacent pairs of which may be connected together. In a modification all of the steel and brass layers may be connected together. An additional biasing steel layer may be included in the bi-metal strip. The steam trap of the invention further includes multiple coarse and fine strainers adjacent to the outlet valve and unique outlet valve structure including a flanged valve seat and cooperable conical valve member adapted to be self mounting in an opening in the steam trap.

Abstract: A thermostatically controlled trap provided that one end of a valve pushrod comes in direct contact with a ball valve when the valve pushrod is subjected to axial motion by the expansion of a thermosensitive member caused by a change in the temperature of a fluid flowing through the trap.

Abstract: A steam trap having a thermostatically controlled bimetallic valve for discharging condensate from steam lines is disclosed. The steam trap has a housing having a fluid inlet port, a fluid outlet port, and valve means within said housing between the inlet port and the outlet port comprising a valve adapted to seat on a valve seat for controlling fluid flow through said steam trap from said inlet port to said outlet port and a bimetallic assembly responsive to temperature variations for controlling the opening and closing of said valve means.

Abstract: An alcohol still having a boiler with a valve for maintaining the amount of liquor constant. The boiler mounts a distilling column having a temperature controlled inlet for liquor to be distilled which assists in maintaining the operation at a constant optimum operating temperature.

Abstract: A steam trap is provided with a bimetallic control element disposed at the prepressure side and a locking element actuated by the bimetallic control element which is biased in the opening direction by the prepressure and which cooperates with a valve seat. The bimetallic control element is provided with at least two bimetallic spring disks which are serially connected in such a manner that when the locking element is open during the slow-speed stroke of the bimetallic spring disks, the stroke movement of the locking element is the sum of the slow-speed strokes of all of the bimetallic spring disks.

Abstract: A steam trap has a control member which includes a bimetallic element at the prepressure side and a locking element, which is biased by the prepressure in an opening direction relative to a valve seat provided for the locking element. The bimetallic element is supported at one end on an abutment and it actuates the locking element with its other end. At least one snap spring which is supported on the abutment is effective on the control member in the direction of the locking element stroke axis, and it has a spring constant which is numerically larger than the spring constant of the bimetallic element.

Abstract: A steam trap includes a housing having an inner chamber, a feed opening and a discharge opening disposed adjacent to one another and communicating with the inner chamber, and a control unit disposed in the chamber including at least one bimetallic plate, a locking member disposed at the low pressure end of the trap and secured to a valve spindle extending centrally through the bimetallic plate and having a cam mounted thereon for engagement with the bimetallic plate and a seat sleeve which defines a valve seat and an abutment for cooperative engagement with said locking member and bimetallic plate, respectively. The seat sleeve includes a feed bushing which, in cooperation with the valve spindle, defines a flow channel therebetween and the cam consists of a cap disposed over a free end of the feed bushing projecting above the bimetallic plate, on the latter of which the cap is supported.

Abstract: A bimetallic column for temperature detection operating devices such as a steam trap, comprising a guide tube secured at its one portion to a counter part of a control stem and slidably extending through a center hole of the bimetallic column and projecting out of the bimetallic column, the control stem slidably extending through the guide tube.

Abstract: A steam trap has a bimetallic control element provided on the prepressure side and a locking part which is biased by the prepressure in the opening direction and which is actuated by the bimetallic control element. The bimetallic control element is provided with at least one bimetallic snap disk and the valve seat is stroke-movably positioned, whereby the maximum stroke path of the valve seat is only a part of the operating stroke of the locking part.

Abstract: The condensation steam trap device includes a housing having a passage through the wall, which provides for fluid flow between the interior and exterior of the housing. The passage has a valve seat and carries a valve for engagement with the seat. A valve-actuating, temperature-sensitive element is disposed within the housing and has a connection with the valve for controlling the opening and closing thereof in response to changes in temperature of the element. The element is a bimetallic band or strip of curved or part-cylindrical shape. A nozzle or inlet pipe projects through another portion of the housing wall as well as through a clearance opening in the strip, the axis of the pipe and the discharge end thereof being directed against the inner surface of the strip substantially tagentially thereof.

Abstract: A condensate removal device which includes two parallel paths for removal of condensate and gases from a fluid system is provided with a thermostatically operated valve in one path and a drain orifice of a preselected size in the other path. The combination is disclosed as it is used in drain lines of a steam system. A bellows or other thermostatically operated valve controls one path to the drain and is in the open position during warmup of the system to permit the passage of the large quantities of air, condensate, particulates and other matter which are present in the system during the warmup stage of operation. The thermostatic element is designed to be closed at operating temperatures. The drain orifice in the other path is designed to continuously pass the condensate and the like which will form in the line when the system is at or near operating temperatures while restricting the passage of working vapor.

Abstract: A steam trap in accordance with the preferred embodiment of the invention disclosed herein includes a valve body member formed with inlet and discharge passages and having a valve seat intermediate the passages that cooperates with a valve member to control the flow of fluid. The valve member is movable in a control chamber and is spaced from the control chamber to form an orifice through which fluid can flow from the inlet side of the valve member into the control chamber for controlling the operation of the valve. In accordance with one aspect of the invention, the valve member is made of a material having a different coefficient of thermal expansion than the material forming the control chamber so that the orifice size and the pressure drop thereacross vary non-linearily with temperature whereby the opening and closing of the trap can approximate the saturation curve of the fluid.

Abstract: A thermally controlled steam trap valve with a housing having an internal chamber which is connected to the inlet and also including an outlet. There is a valve seat disposed in the housing for covering the outlet and a valve shaft which has a spherically shaped valve member mounted on the shaft for closing off the valve seat in response to a bimetallic element. Guide pin elements in the form of bushings are disposed in the housing at opposite ends of the shaft and have diametrical clearances which are coordinates with the axial spaces between the center point of the spherical valve member and the points of contact with the shaft with the guide bushings. In another embodiment the valve seat has a yoke with ribs extending over the bimetallic element. The valve member has radial guide shoulders which include openings for the discharge which cooperate with the inner wall of one of the bushings.

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.