The national standard electric shutoff valve is suitable for various lines of DN15 to DN200, PN16 to PN160, for truncating or turning on the medium in the line. Different materials, the national standard cutoff valve of Xwo Technology can be applied to water, steam, oil, nitric acid, acetic acid, oxidative medium, urea and other media. The driving method of the national standard intermittent valve is manual, gear drive, pneumatic or electric. The national standard shutoff valve is generally used with flanges, or the welding connection can also be used.

The opening and closing parts of the globe valve are plug-shaped flaps, the sealing surface is flat or tapered, and the flaps move linearly along the center line of the fluid. The movement form of the valve stem includes the lifting rod type (the valve rod is raised and lowered, the hand wheel is not raised and lowered), and the lifting rotary rod type (the hand wheel and the valve rod rotate and lift together, the nut is provided on the valve body). The shut-off valve is only suitable for fully open and fully closed, and it is not allowed to adjust and throttle.

The forged steel globe valve is applicable to various pipelines of Class150 ～ Class1500 and DN15 ～ DN50, used to cut off or connect the medium in the pipeline. Choose different materials, Xianwo Technology's forged steel globe valve can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and so on. The drive mode of the forged steel globe valve is manual, gear transmission, pneumatic or electric. Forged steel globe valves are generally flanged or butt welded.

The oxygen shut-off valve is suitable for various pipelines from DN15 to DN400 and PN16 to PN40 to cut off or connect the medium in the pipeline. The oxygen shut-off valve needs anti-static, anti-grease and dust-proof treatment to ensure safe operation on the pipeline. Before assembling the oxygen shut-off valve, all parts and assembling tools shall be degreasing and degreasing treatment one by one according to the regulations of JB/T 10530－2005. After passing the inspection, all parts shall be degreasing and degreasing treatment, and use oil-free dry Blow clean with nitrogen or air and store in an oil- and dust-free space. The oxygen shut-off valve has an anti-static structure, and the end flange of the oxygen shut-off valve can be provided with conductive bolt holes to make the bolt connection wire well grounded. The bonnet of the oxygen shut-off valve should be equipped with a dust cover, and there should be a conspicuous oil prohibition mark on it. When using the oxygen shut-off valve, the pipeline should be cleaned and degreasing and degreasing treatment should be carried out to avoid static electricity.

Power station shut-off valve is suitable for various systems of petroleum, chemical industry, thermal power station and hydraulic power with nominal pressure PN1.6-100MPa, P54/100V-P57/170V, working temperature ≤540℃ (including P57/170V working temperature 570℃) On the pipeline, cut off and connect the pipeline medium. Applicable media are: water, steam, oil, acidic media, etc.