American standard bellows globe valve is the American standard valve (API Valve), its opening and closing pieces are plug-shaped valve, the sealing surface was flat or tapered surface, the valve flap along the fluid center line for linear motion. American standard Bellows stem valve stem movement, lifting rod (stem lift, hand wheel does not lift), there are lifting rotary rod (hand wheel and stem together with the rotation, the nut is located in the valve body). American standard bellows globe valve only applies to fully open and fully closed, does not allow for regulation and throttling. American standard bellows globe valve for nominal pressure CLASS150-900LBS, working temperature -29 ~ 350 ℃ in the petroleum, chemical, pharmaceutical, fertilizer, power industry and other conditions of the pipeline, cut off or connect the pipeline media. Its main structural features: 1, the product structure is reasonable, reliable sealing, excellent performance, handsome in appearance; 2, the sealing surface surfacing Co-based carbide, wear resistance, corrosion resistance, good anti-friction performance, long service life; Rod quenching and surface nitriding, with good corrosion and friction properties; 4, double seal, more reliable performance; 5, stem lift position indication, more intuitive; 6, parts material, flange and butt welding Size according to the actual conditions or user requirements reasonable matching, to meet the needs of various projects.