The application of polyurethane prefabricated direct buried thermal insulation pipe in geothermal engineering construction is not long in fact, but in more than ten years of application practice, the superior performance of polyurethane thermal insulation pipe has been more obvious, and has been recognized by more and more people in the industry.
Since its establishment, Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd. has been adhering to the enterprise mission of "delivering warmth and serving heating", developing and producing high-quality prefabricated directly buried thermal insulation pipe products and setting up intelligent leakage monitoring and early warning system for heating pipes, which promotes the Chinese heating pipe network manufacturing industry from low-end to high-end. Ensure the safe operation of urban underground pipelines, reduce energy consumption, improve the intelligent level of urban heating field, accelerate the implementation of green intelligent manufacturing engineering of prefabricated directly buried thermal insulation pipe manufacturing industry, promote green manufacturing in an all-round way, and build a green manufacturing system to contribute to Xingyuan people. The regulating valve in the heating network is also called throttle valve. It is the commonly used valve of heating system secondary network. Working principle: Shape, structure and globe valve similar. Only the seal pair is different, the valve disc and valve seat of the control valve is similar to the cork and mouth of the warm water bottle, through the movement of the valve disc to change the flow area to adjust the flow. There is a ruler on the valve shaft to indicate the corresponding flow rate. Function is to adjust the flow distribution between the pipeline medium to achieve thermal balance, heating engineering has been used is straight through type (T41H), but it has some shortcomings: flow resistance, not vertical installation. So with the progress of technology, balance valve (PH45F) instead of regulating valve. Balance valve improved control valve. The flow channel adopts straight flow, and the valve seat is changed to polytetrafluoroethylene: overcoming the disadvantages of large flow resistance, and adding two advantages are more reasonable sealing and cutoff function. It is used in the secondary network of heat station in heating engineering. It has excellent flow regulation characteristics and is especially suitable for variable flow system. Directional, can be installed horizontally, also can be installed vertically.