Abstract:
An automatic adjustment valve (20), designed to maintain at a constant level the differential pressure in a heating or cooling system (1), is connected into a return line (16) between radiators or the like (8, 9) and a main return pipe (4). The valve is via a measuring pipe (22) connected to a feed line (6) between a feed pipe (2) and said radiators or the like. In a valve body (23) and a top piece (26) of the valve, connected to the valve body a spindle (27) is mounted having a valve cone (25) designed to interact with a seat (24) in said return line (16). According to the invention, the spindle (27) is surrounded by partly a compression spring (43), which is supported by a stop element (45), which is threaded onto the spindle and is axially displaceable but not rotatable, and partly a membrane (51), which via a membrane disc (50) actuates the spindle in its closing direction against the action of said spring. The spindle extends through the membrane and is adjustable in this area in a predetermined way in operation by means of a tool (58), which can be inserted from outside, designed to rotate the spindle in relation to said stop element.
Abstract:
A device, preferably a terminal valve, the complete valve being provided with a cone (9), which cooperates with a valve seat (10), said components also cooperating with a veil (12) and the valve seat (10) being a part of a seat ring (19), which is a combined sealing element, which seals against the cone (9) as well as against the valve body (1), at the same time as the seat ring is a valve seat (10), and the cone (9) having a cylindrical portion (46), which is provided with slits (49) and (50), the passage area, which is obtained, causing a flow, which corresponds to a modified logarithmic function.
Abstract:
Die Erfindung betrifft eine Regelarmatur (1) zur Regelung der Durchflussmenge und des Differenzdruckes in flüssigkeitsführenden Heizungs- oder Kühlanlagen, bestehend aus einem Gehäuse (2) mit Einlass (3) und Auslass (4) sowie einem dazwischen angeordneten Anschlussstutzen (5) mit darin eingesetzter Regeleinrichtung (9), erster Durchflussreguliereinrichtung (10) und zweiter Durchflussreguliereinrichtung (11), wobei in Fließrichtung der durchströmenden Flüssigkeit dem Einlass (3) folgend die erste Durchflussreguliereinrichtung (10), dieser folgend die zweite Durchflussreguliereinrichtung (11), dieser folgend die Regeleinrichtung (9) und dieser folgend der Auslass (4) vorgesehen ist, eine im Anschlussstutzen (5) angeordnete Spindel (12) ein Betätigungsteil (13) und ein Drosselelement (14) aufweist, welches Bestandteil der ersten Durchflussreguliereinrichtung (10) ist, und die Spindel (12) sowohl die Regeleinrichtung als auch die zweite Durchflussreguliereinrichtung (11) axial durchgreift.
Abstract:
The invention relates to a flow regulating valve (1) for liquid-conducting heating or cooling systems, consisting of a housing (2) with an inlet (3), an outlet (4), and a connecting piece (13) which is arranged between the inlet and outlet and into which a pressure regulating device (14) that keeps the pressure difference between the pressure regions in front of and behind a flow regulating unit (8) arranged in the connecting piece constant and a spindle (7) with an actuating part protruding out of the housing (2) and with a first throttle element (9) located in the housing (2) are inserted, said first throttle element acting on the flow regulating unit or parts thereof. The flow regulating unit (8) consists of a first throttle device, which is made of the first throttle element (9) that is secured to the spindle (7) and a seat (10), and a second throttle device, which is made of a second throttle element (11) that is arranged on the spindle (7) in a movable manner along same and a seat, wherein the second throttle element (11) can be moved in the direction of the first throttle element (9).
Abstract:
Die Erfindung betrifft ein Diagnoseverfahren zur Diagnose der korrekten Funktion eines Heizungs- und/oder Kühlsystems mit zumindest einem Lastkreis (6), durch welchen ein Fluid als Wärmeträger strömt, wobei zur Diagnose ein Öffnungsgrad des Lastkreises (6) zur Änderung des Durchflusses verändert wird und anschließend ein Differenzdruck über dem Lastkreis (6) und/oder und ein Volumenstrom eines durch den Lastkreis (6) strömenden Fluides erfasst und die erfassten Werte oder zumindest ein aus diesen abgeleiteter Wert mit zumindest einem vorgegebenen Systemgrenzwert verglichen werden.
Abstract:
According to an embodiment of the disclosure, a system for regulating a pressure differential includes a plurality of valving elements (160, 260, 360a-360c) and a valve activation system (120, 220, 320). Each of the plurality of valving elements are configured to selectively allow and restrict at least a portion of a flow of fluid between an inlet (110, 210, 310) and an outlet (190, 290, 390) of a conduit (105, 305) through a respective opening and closing of each respective valving element. The valve activation system is configured to supply a common driving pressure to the plurality of valving elements. The common driving pressure is configured to initiate at least one of the opening or closing of the plurality of valving elements or to initiate the other of the opening or closing of the plurality of valving elements.
Abstract:
An unvented water heater (10), the heater (10) including a water tank (12) to store water, the water tank (12) incorporating a heating element (16) to heat the water, a water inlet pipe (25) to admit mains water into the tank (12) and a discharge pipe (22) enabling excess water to be discharged; the heater including an air-gap regeneration device (20) to introduce air into the tank, the device being operably connected to the inlet pipe (25) and the discharge pipe (22) to open and close said pipes (22, 25), pressure determining means to measure the pressure within the tank (12) and transmission means (23a) to pass the pressure data obtained from the pressure determining means to the device (20), the device (20) operating once the tank pressure has exceeded a pre-set pressure, an air inlet valve (24) admitting air into the tank (12).
Abstract:
Es wird Durchflußeinstellventil (1) mit einem Ventilgehäuse (2), das einen Durchflußkanal (3) und einen unter einem Winkel zum Durchflußkanal (3) stehenden Stutzen (10) aufweist, wobei im Durchflußkanal (3) eine Drosseleinrichtung (6) angeordnet ist, die ein durch den Stutzen (10) hindurch betätigbares Drosselelement (8) aufweist, und mit zwei Meßstellen (14, 15) zum Erfassen des Drucks im Durchflußkanal (3) beidseits einer Drosselanordnung, von denen jeder über einen Druckmeßkanal (26, 27) mit einem Druckmeßanschluß (17) verbunden ist. Man möchte die Gestaltungsmöglichkeiten eines derartigen Durchflußeinstellventils erweitern. Hierzu ist vorgesehen, daß mindestens ein Druckmeßkanal (26) durch den Stutzen (10) geführt ist.