Design standards:GB/T12235;   DIN; ANSI                                                                                             Connection mode: flange

Main material material:Gray iron, ductile iron, carbon steel, stainless steel and so on.

Applicable medium:Pulverized coal, waste residue, sewage, acid and alkali liquids, slurry, steam, gas, oil, containing granular, fiber and other media.

2. APPLICANT 

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.

3.Structural characteristics
 

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.