Abstract: A pipe from a plastic material having memory properties is extruded. The extruded pipe is cut to form a pipe part (7). The pipe part (7) is warmed and the end (6b) of the pipe part (7) is bent. The pipe part (7) forms a clamping ring (6) and the bent end (6b) of the pipe part (7) forms a stop edge (10) in the clamping ring (6).

Abstract: The invention relates to a connection between two pipe parts. One of the pipe parts (1, 2) comprises a male end (3) and the other pipe part (1, 2) comprises a female end (4). The two pipe parts (1, 2) can be connected together by positioning the male end (3) to the female end (4) such that the pipe parts (1, 2) are rotated with respect to each other when they are connected. At least one end (3, 4) of one pipe part (1, 2) is provided with at least one protrusion (11) and at least one end (3, 4) of the other pipe part (1, 2) is provided with a corresponding recess such that the protrusion (11) and the recess together lock the pipe part (1, 2) to a correct positioned with respect to each other. The protrusion (11) is positioned on the outer circumference of the pipe part (1, 2), whereby the protrusion (11) is manipulatable outside of the pipe part (1, 2).

Abstract: A pipe from a plastic material having memory properties is extruded. The extruded pipe is cut to form a pipe part (7). The pipe part (7) is warmed and the end (6b) of the pipe part (7) is bent. The pipe part (7) forms a clamping ring (6) and the bent end (6b) of the pipe part (7) forms a stop edge (10) in the clamping ring (6).

Abstract: A plastics pipe provided with engageable fastener elements on an outer surface thereof, a method for manufacturing the pipe, and a fastener system comprising inter-engageable fastener elements on an outer surface of a pipe and a support therefore.

Abstract: The invention relates to a ground heat exchanger to be positioned in a borehole (1) in the ground. The ground heat exchanger (2) comprises a flow leg (3) and a heat exchanger leg (4). Yet further the ground heat exchanger (2) comprises a refilling pipe (9) that is permanently attached to a lower part of the ground heat exchanger (2).

Abstract: A first element is connected to a first end of the connecting piece and a second element is connected to a second end of the connecting piece. At least one end of the connecting piece is provided with a thread, whereby the connecting piece is connectable for instance to a pipe or fitting with threaded connection. The connecting piece may be made of plastic, for example, the connecting piece is made substantially completely of thermoplast in such a way that the thermoplastic body is provided with a thread. The outer surface of the connecting piece is provided with a gripping member. The gripping member is formed and dimensioned such that it gives way earlier than the connecting member thread and/or basic structure.

Abstract: The invention relates to a coupling system comprising two base bodies, each of which has an aperture for a fluid, an interior predefined circumferential depression and a locking surface (26). An adapter piece (1) comprising an aperture (9) for the fluid has two ends (2, 3) and at least two predefined circumferential depressions (4), which run at least partially along a circumference of the respective ends, wherein the first base body (21) is associated with the first end (2) of the adapter piece (1) and the second base body (21) is associated with the second end (3) of the adapter piece (1), wherein in a state in which they are pushed inside each other the circumferential depression (4, 5) associated with the respective end (2, 3) of the adapter piece (1) and the interior circumferential depression of the respective base body (21) are located opposite of each other and form a receiving space (22).

Abstract: The clamp fitting for a pipe, in particular, a plastic pipe or a plastic-metal composite pipe, is provided with a fitting body having a support sleeve onto which one end of a pipe to be connected can be pushed. Clamp fitting further comprises a clamping sleeve having a wall that has a slot running between its axial ends that is delimited by opposing flanks of the wall and is expandable, wherein clamping sleeve surrounds support sleeve and end of the pipe to be connected in the state when it has been pushed onto the support sleeve. To maintain the expanded state of clamping sleeve, a removable spacer, against which flanks of the wall that delimit slot of the expanded clamping sleeve are supported, is arranged in slot.

Abstract: A network device configured to allow the connection of the network device to a network in a daisy chain configuration using a single cable. The network device is connected to a cable with two conductors by a socket that is adapted to receive a plug connected to the end of the cable. When the plug on the end of a cable is inserted into the socket, a first conductor in the cable is connected to an input port of a network component and a second conductor of the cable is connected to an output port of a network component. A signal from the network is transmitted down a first conductor in a cable to a network device and the signal is then transmitted back from the network device down a second conductor in the same cable.

Abstract: For forming a clamping ring first the pipe is extruded. The extruded pipe is cut to form a pipe part. While extruding the pipe, its inner diameter is formed smaller than the outer diameter of a pipe onto which the clamping ring is positioned before making a pipe connection. The inner diameter of the pipe part is made larger by removing material from the inside of the pipe part but only over part of the length of the pipe part such that a stop edge is formed. The clamping ring is used on a pipe when making a pipe connection.

Abstract: The pipe fitting comprises a plastic body (2) and a reinforcement ring (3) around the outside of the plastic body (2). The reinforcement ring (3) holds the body expansion under control. The reinforcement ring (3) is positioned at the distance (d) from the front end of the pipe fitting (1).

Abstract: Flexible polymeric pipes may have an outer diameter of at least 5/16 inch, with a wall thickness of between 1.75 mm and 2.05 mm and a burst strength of at least 300 psi. The flexible polymeric pipe may include at least 95% by weight of the polymeric pipe of a cross-linked polyethylene, between 0.1% and 0.5% by weight of the polymeric pipe of a cross-linking agent, between 0.05% and 0.6% by weight of the polymeric pipe of an antioxidant, and between 0.01% and 0.6% by weight of the polymeric pipe of a hindered amine light stabilizer.

Abstract: A control device for controlling a heating system having a first heat exchanger disposed in a first part of a building, and second heat exchanger disposed in a second part of a building, the control device comprising: a first temperature sensor associated with the first heat exchanger and measuring a temperature in the first part of the building, a second temperature sensor associated with the second heat exchanger and measuring a temperature in the second part of the building. The control device includes a control station by which a temperature compensation can be initiated by recirculating a fluid medium to be used for heat exchange as a function of the temperatures (T1, T2) measured by the first and the second temperature sensor and at least partial exchange of the fluid medium takes place between the first heat exchanger and the second heat exchanger.

Abstract: For forming a clamping ring first the pipe is extruded. The extruded pipe is cut to form a pipe part. While extruding the pipe, its inner diameter is formed smaller than the outer diameter of a pipe onto which the clamping ring is positioned before making a pipe connection. The inner diameter of the pipe part is made larger by removing material from the inside of the pipe part but only over part of the length of the pipe part such that a stop edge is formed. The clamping ring is used on a pipe when making a pipe connection.

Abstract: The press fitting for a pipe is provided with a fitting element which comprises a supporting element onto which a pipe to be connected can be pushed. Furthermore, the press fitting comprises a compression sleeve which has on its circumferential surface a compression region corresponding to the region a pressing tool acts on the compression sleeve during the compression thereof. A plastic ring is situated on the outside of the compression sleeve and is secured thereon against movements in the axial direction of the compression sleeve wherein the plastic ring has at least one axial projection which extends right into the compression region of the compression sleeve and which can be destroyed when the pressing tool acts on the compression sleeve and/or is secured so that it can be separated from the plastic ring.

Abstract: A fire sprinkler fitting support bracket (100) is disclosed for mounting fire sprinkler tee-fitting (30) to a building structural component (5). The bracket (100) includes a mounting portion (103), and a cradle portion (101) cantilevered from the mounting portion (103). The cradle portion (101) is configured to receive and support the fitting body (32) on a concave surface (190a, 190b) thereof. The fitting (30), which may be a tee fitting, elbow fitting, or the like, is detachable from the bracket (100).

Abstract: In a hydronic heating/cooling system, liquid is led along a main supply pipe (1) to a supply manifold (2) and distributed into heating loops (3). The heating loops (3) return to a return manifold (4). At least one of the manifolds (2, 4) has actuators (6) for controlling the flow in the heating loops (3). Actuators with fast operating times are used and valves of the actuators are controlled to close at different times in different heating loops (3).

Abstract: The invention relates to a hydronic heating/cooling system. In the system, liquid is led along a main supply pipe (1) to a supply manifold (2) and distributed in the manifold into heating loops (3). The heating loops (3) return to return manifold (4). At least one of the manifolds (2, 4) has actuators (6) for controlling the flow in the heating loops (3). At least one loop is designated to be a bypass loop. The actuators (6) in the loops (3) are monitored and it is ensured that the actuator (6) of the bypass loop is open if all the other actuators (6) are closed.

Abstract: The invention relates to controlling an under surface heating/cooling. During a heating mode, the room temperature is increased by increasing the flow of the liquid in a supply loop (3). If the set point has an increase that is greater than a pre-determined value, the supply temperature of the liquid is increased. During a cooling mode, the room temperature is decreased by increasing the flow of the liquid in the supply loop (3). Correspondingly, in response to a set-point change greater than a pre-determined value, the supply temperature of the liquid is temporarily decreased.

Abstract: A tool device for the connection of a plastic pipe, particularly a plastic/metal composite pipe, to a fitting having a compression or sliding sleeve, has a housing (40), a drive element (20) that can be mechanically driven, which can be displaced selectively along a first movement direction or along a second movement direction, a pipe expanding tool (14) for expanding a pipe end (50) that can be slid onto a supporting sleeve (48) of a fitting (46), and a compression sleeve-pressing tool (16) or a sliding sleeve-sliding tool (16?) for pressing a compression sleeve (52) onto the expanded pipe end (50) having been slid onto the supporting sleeve (48) of the fitting (46?) or for sliding a sliding sleeve (52?) onto the expanded pipe end (50) having been slid onto the supporting sleeve (48).