CS244334B1 - Hose connection with valve cap - Google Patents

Abstract

A hose connection with a valve closure built into the piping circuit of a heating device serves to connect a hose for measuring and checking the designed pressure differences and for filling and draining water during repairs and maintenance. The invention solves the hose connection in conjunction with a valve closure. The solution according to the invention lies in a structural conversion, where a hose connection terminated with a conical surface and slidably placed in the opening of the valve body forms a valve closure.

Description

244334

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular connection with a valve closure intended to be installed in piping circuits, in particular central heating circuits.

A crucial condition for the heating system to work properly is to maintain the designed pressure differences in the individual sections of the piping circuit, which will provide the required distribution to the individual heating elements. Therefore, their control not only in new buildings, where the prescribed clearance with the relevant with hydraulic values, but also with older devices, where the impurities due to clogging of the screed result in a marked change in the design of the pressure housings in the piping circuit over time. Contralatillation conditions are also important for different heating pipe circuits and can also identify the causes of disturbances in the boiling. From the devices used to connect the control devices for controlling differential pressure in the decisive section of the duct circuit, the taps and the taps with the conical closure are in particular present. The unsuitability of their use is in particular in that the tapered plug co-knobs are not capable of sealing higher pressures that occur in the circulation systems up to 1 MPa, so that they require a stronger tightening of the cone for waterproofing, which in turn deteriorates handling with cap. Co-hut is a robust construction, the body and cone are castings, the production of which is demanding material and labor. Also, their assembly in the decisive sections of the duct is adequate in some cases with regard to the closure and handling of the closure.

The above mentioned drawbacks are substantially eliminated by the hose connection with a valve cap according to the invention, the principle of which is that the hose connection provided by the cone and the guide part slidable in the opening of the valve body is provided with a collar and a resilient ring recessed in the recess for receiving and storing the bottom of the preload nut, screwed onto the valve thread actuator, wherein the donor ring embedded in the valve of the valve housing limits the linear movement of the conical surface. The advantages of the new solution in particular are that, with a relatively simple construction, with a minimum number of simple components, the valve closure is provided with a hose connection corresponding to the water tightness of the higher pressures with a good closure capability, material and labor intensity and relatively smaller merov. A hose plug with a valve plug integrated in the piping circuit can be used to connect the leak differential pressure gauge hoses to check for pressure differences, adjusting the pressure differential to the differential pressure regulators, and also to fill and drain water from the actuator piping for repair and maintenance. The closure manipulation is accomplished by rotating the displacement nut using a conventional opening key.

In the accompanying drawing, one example of an embodiment of a hose connection with a valve closure according to the invention is schematically illustrated, wherein in FIG. 1 the half of the connection is in cross section and the other half is in a position.

The valve body 5 with the connecting thread 15, the seat 12 has a sliding bearing part 3 with a sealing ring 14 of the hose connection 1 in the opening 4, which is provided with a conical surface 2 behind which the apertures 13 project into the outlet outlet 16. A groove 8 is provided on the surface of the hose connection 1 by a collar 6a of the spring ring 7 embedded in the recess 17 for engaging a rotatable bearing base 9 of the union nut 18 screwed on the control thread 10 of the valve body 5. Linear movement of the skin-1 When the rotary nut 18 is rotated, the stop ring 11 is placed in the bore 19 of the valve body 5, and its mounting allows for a loosening 20 formed between the guide part 3 and the collar 6 of the hose connection 1.

By means of hoses connected to the hose connection 1 and by opening the valve by turning the sleeve 18, it is possible to measure both the static and differential pressure at the location of the installed connection on the pipe circuit, or to drain or feed the circulating medium of the pipe circuit .

Claims (1)

SUBJECT A hose connection with a valve cap comprising a valve body with a threaded connection and a hose connection, characterized in that the hose connection (1J provided with a cone (2) and a guide portion (3) slidably received in a bore (4) of the valve body (5) has a groove (8) formed on the surface by means of a collar (6) and a resilient ring (7) embedded in the invention (17) for receiving and receiving the bottom (9) of the union nut (18) screwed on the control thread (10) of the valve body (5) ), the stop ring (11) mounted in the recess (19) of the valve body (5) restricting the linear movement of the conical surface (2).