| 摘要 |
A hot water control valve is provided to heat rooms in a uniform manner regardless of the length of a heating pipe and the distance between a boiler and rooms. A hot water control valve(100) includes a joining part(10), a tubular body(20), a first joint(30), a ring(40), a second joint(50), an O-ring, a shape memory spring, an elastic spring, and a ball valve. The joining part has a first threaded surface(11) to be bolted to a water dispenser unit and a second threaded surface having a diameter larger than that of the first threaded surface. The tubular body has one side with a pipe fitting portion(21) and a third threaded surface having a diameter larger than that of the pipe fitting portion, and the other side tightly contacting the second threaded surface of the joining part. The first joint is arranged at one end of the tubular body, and bolted to the second threaded surface to join the joining part to the tubular body. The ring tightens a heating pipe fitted to the pipe fitting portion. The second joint is bolted to the third threaded surface and tightens the ring so as to prevent the heating pipe from escaping from the pipe fitting portion. The O-ring is interposed between the second threaded surface and the tubular body for air-tightness. The shape memory spring is positioned at the joining part side in the tubular body. The elastic spring is positioned at the pipe fitting portion side in the tubular body. The ball valve is interposed between the shape memory spring and the elastic spring, and has an end with a round cap shape. The ball valve selectively shuts an outlet of the pipe fitting portion. |
