| 摘要 |
<p>FIELD: heating systems. ^ SUBSTANCE: invention is intended for air heating and can be used in heating systems. Sectional heater includes several in-series located sections which are connected to each other with couplings and sealed with appropriate sealing on the outside in the area of their connections. The first section is equipped with insert valve passing to coupling installed between the first section and the second section; at that, the above coupling installed between the first section and the second section has at least one screw thread to be connected to one of two sections. Screw thread is equipped with thread sealing. Continued tubular part of insert valve is passed inside coupling. Sealing is arranged between continued tubular part and coupling. ^ EFFECT: invention provides the possibility of controlling heat carrier by means of insert valve only. ^ 11 cl, 4 dwg</p> |
