免费无遮拦无码视频在线观看_中国一级 片内射视频播放国产_亚洲欧美日韩一级_少妇无码中文字幕av_三级视频免费电影_成人毛片女人毛片免费看_亚洲AV无码国国产产精品久久一_蜜臀av一区二区蜜臀AV免费_欧美一级在线观看影视_日韩中文字幕推理片


Clamp exhaust valve

Exhaust valve piping system is an essential auxiliary components, widely used in boilers, to the drainage pipe. Often installed in the commanding heights or elbows, etc., to exclude excess gas pipeline, pipelines to improve the efficiency and reduce energy consumption. HVAC, HVAC Systems During operation, the numerous adverse effects of gases (such as hydrogen, oxygen, etc.) released by water during heating can damage the system and reduce the thermal effects. If these gases can not be discharged promptly, Adverse consequences. Such as: corrosion caused by oxidation; the formation of airbags in the radiator; unbalanced hot water circulation is not smooth, so that some radiators do not partially heat; noise when the pipe runs with gas; vortex phenomenon circulating pump.