GSP1.0 (1.6, 2.5, 4.0) full-pressure efficient high-speed exhaust and gulp valve is installed on input pipelines and heat circulating water pipelines with the pressure under 1.0 (1.6, 2.5, 4.0) MPa and water temperature under 100°C, to exhaust air and partial steam in the pipelines, and eliminate increased water resistance caused by air stored in the pipelines, and pipeline breaking caused by air-burst water hammer. When vacuum is generated in the pipeline, air can be injected automatically to prevent sewage from infiltrating into the pipe and deformation of thin-wall steel pipe.

In the test run of urban water supply network and new water supply system, it is easy to cause pipe burst or water hammer damage accident. The study shows that the main cause of the accident is blocked air exhaust of pipelines. However, the existing high-speed exhaust and gulp valve (including the double-port exhaust valve, the compound double-port exhaust valve) can only discharge the non-pressure air at high speed. On account of that it is almost inevitable that most pipelines, especially new pipelines, have multiple water columns and air columns, ordinary high-speed (double port) exhaust valve cannot meet the exhaust needs of pipelines, resulting in a lot of burst accidents of urban water supply pipelines. This full-pressure efficient high-speed exhaust and gulp valve is different from the ordinary high-speed (double-port) exhaust valve in terms of structural principle. For the air in the pipeline, whether there are multiple water columns and air columns, pressure or non-pressure, it can be discharged out of the pipeline at high speed. With this valve, you will be relieved of the risk of test run of new pipeline and difficulties in air exhausting; reduce pipe network burst accidents, reduce resistance and energy saving, reduce pressure shock, and improve the safety and reliability of the whole water supply system and various equipment.