Product overview: h41h / w / y lift flange check valve is a check valve whose disc slides along the vertical center line of the valve body. It can only be installed on the horizontal pipeline. The disc of high-pressure small caliber check valve can be spherical, The body shape of h41h / w / y lift type flange check valve is the same as that of stop valve (it can be used in common with stop valve), so its fluid resistance coefficient is larger, but its tightness is better than that of swing type. It is selected for pipelines with nominal pressure of pn1.6-6.4mpa and working temperature of - 29-550 ℃ in petroleum, chemical industry, thermal power station and other working conditions. Applicable media: water, oil, steam, etc.