Fitting for connection of a heat exchanger

Abstract

A device for a fitting for connecting together one or more heat exchangers to a hot water container of the pressure type in the following manner. A connection in the form of a cylindrical pipe with a first end fastened to the wall and/or the hot water container, and a second end is connected to further piping. The connection having an inner diameter that is larger than or equal to the outer diameter of the pipe of the heat exchanger, and an inner pipe-formed sleeve having an inner diameter that is smaller than or equal to the inner diameter of the pipe of the heat exchanger. The pipe of the heat exchanger fits into the sleeve of the connector. The sleeve squeezes the pipe to create a smaller diameter for the purpose of providing a leak-proof connection between the pipe of the heat exchanger, the connection and the inner sleeve.

1 . Device for a fitting for the connection of one or more heat exchangers to a hot water container of the pressure tank type, characterised in that said fitting encompasses: 
 a connection in the form of a cylindrical pipe with a first end and a second end, said first end being arranged to be fastened to the wall, top or bottom of the hot water container, and the second end being arranged to be connected to further pipe parts, valves, etc., said connection is fitted with a section encompassing at least two groove carrying sections equipped with O-rings, where the inner diameter of the connection is larger than or equal to the outer diameter of the pipe of the heat exchanger, and also an inner pipe-formed sleeve the inner diameter of which is less than or equal to the inner diameter of the heat exchanger pipe, as the connection is connected to the wall, top or bottom of the hot water container, and one end of the heat exchanger pipe is led through a through-going hole in the wall, top or bottom of the hot water container and a distance into the connection beyond the section, that the sleeve is led into the end of the heat exchanger pipe that lies in the connection, and that the section is squeezed together to a smaller diameter for the purpose of providing a leak-proof connection between the heat exchanger pipe, the connection and the inner sleeve.    
   
   
       2 . Device for a fitting according to  claim 1 , characterised in that the first end of the connection is fitted with a threaded section for connecting to a complimentarily formed threaded section on the wall, top or bottom of the water heater.  
   
   
       3 . Device for a fitting according to  claim 1 , characterised in that the first end of the connection is fastened to the wall, top or bottom of the water heater with the help of welding.  
   
   
       4 . Device for a fitting according to  claim 1 , characterised in that the other end of the connection, protrudes from the wall, top or bottom of the hot water container.  
   
   
       5 . Device for a fitting according to  claim 1 , characterised in that the other end of the connection is formed with a joining body for coupling together the connection with other pipe parts.  
   
   
       6 . Device for a fitting according to  claim 1 , characterised in that the other end of the connection with the section protrudes into the hot water container and that the first end is provided with a section with an enlarged diameter to lie against the inside of the wall, top or bottom of the hot water container and that this section is fitted with a sealing body ( 5 ) in the form of an O-ring, and that a part of the first end protrudes from the hot water container ( 9 ) and is fitted with a threaded section to cooperate with a complimentarily formed locking nut ( 10 ), as the locking nut and/or the protruding part of the connection ( 1 ) is fitted with a groove for an O-ring.