National standard bellows globe valve is suitable for cutting off or switching on regulating pipeline medium in various working conditions of petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry with nominal pressure PN1.6-4.0 MPa and working temperature - 29-425 degree C.
1. the product is reasonable in structure, reliable in sealing, excellent in performance and beautiful in appearance.
2. sealing surface surfacing Co based cemented carbide, wear resistance, corrosion resistance, good friction resistance and long service life.
3. stem quenching and tempering and surface nitriding, good anti-corrosion and anti friction properties.
4. double seal, more reliable performance.
5. no upgrade handwheel;
6. Material of parts, flange and butt weld end dimension can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs.
7. spool can be cut off and adjusted according to need.