J22 upper and lower cut-off valve threaded election Shanghai fast, high-quality J22 thread down valve, 100% quality assurance. J22 thread down shutoff valve with easy installation and removal, connections are tight, there is conducive to fire, explosion, and high voltage capability, good sealing performance, etc., are widely used in power plants, oil refineries, chemical and other industries. This product performance, reliability and excellent quality. Working pressure: 1.6-70MPA Working temperature: -60 ℃ -600 ℃ valve diameter: DN3-DN50 Connection: Flange, female, male, welding, card sets Transmission: Manual Applicable medium: gas, oil, acid class, corrosive media, etc. Body Material: Forged steel, forged stainless steel sealing surface material: H, J, F46, Y, W, T, G