Welded Bellows Gate Valve
Introduction:
The welded bellows gate valve adopts a unique double bellows seal design, which completely eliminates the problem of stem packing seal leakage and meets the most stringent leakage level requirements. If the bellows fails unfortunately, the packing seal on the valve rod is used for secondary sealing to prevent leakage. The bellows sealing structure not only eliminates leakage, but also requires no maintenance. If internal components need to be replaced, it is convenient, simple and fast. All components meet the standard and are interchangeable. The bonnet and bonnet are equipped with grease filling holes, which can lubricate the valve rod and nut sleeve. Bellows sealed globe valve adopts unique spherical cone valve core instead of traditional plane valve core, which can be used for manual rough flow control. The surface of valve core is hardened, which improves the sealing performance. The valve core can be installed vertically below DN150, and the valve core can be adjusted automatically. Bellows stop valve is applicable to the pipelines of petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industry and other working conditions with nominal pressure of PN1.6-6.4MPa/150LB-800LB and working temperature of – 29-425 °, to cut off or connect the pipeline medium.
Characteristic:
1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance
2. The sealing surface is welded with Co based cemented carbide, which has good wear resistance, corrosion resistance, friction resistance and long service life
3. The valve rod is quenched and tempered and the surface is nitrided, with good corrosion resistance and friction resistance
4. Double sealing, more reliable performance
5. The rising and falling position indication of valve rod is more intuitive
6. The part material, flange and butt welding number and size can be reasonably selected according to the actual working conditions or user requirements to meet the needs of various projects
Main parts and materials of the product:
Product Showing:
