The 44H flange swing check valve is selected for pipelines of various working conditions such as petroleum, chemical and thermal power stations with a nominal pressure of PN1.6 to 6.4 MPa and an operating temperature of -29 to 550 °C. Applicable medium: water, oil, steam, etc. The materials are selected to meet the relevant domestic and foreign standards, and the overall quality of the materials is high. The sealing pair is advanced and reasonable. The sealing surface of the valve disc and the valve seat is made of iron-based alloy or Stellite cobalt-based hard alloy surfacing surface. It is wear-resistant, high-temperature resistant, corrosion-resistant and scratch-resistant. long life. The product is designed and manufactured according to the national standard GB/T12235. Various pipe flange standards and flange seal types can be used to meet various engineering needs and user requirements. The valve body material is complete in variety, the gasket can be reasonably matched according to the actual working conditions or user requirements, and can be applied to various pressure, temperature and medium working conditions. The check valve can be designed and manufactured according to user requirements and can be used for various equipments. 
 Application specification