NIKONiko American Standard Bellows Globe Valve

Brand: Jiangsu NIKO Niko

Connection Type: Flange, Welding

Material: Cast Steel, Forged Steel, Stainless Steel.

Nominal Diameter: DN15-DN300

Nominal Pressure: 150LB-600LB

Operating Temperature: -29～425℃

Product Description:NIKONiko American Standard bellows globe valve is welded by automatic roll welding, forming a metal barrier between the fluid medium and the atmosphere, ensuring a zero-leakage design for the valve stem. The bellows globe valve internally adopts a bellows structure, with the lower end of the stainless steel bellows welded to the valve stem via a stainless steel gasket to prevent process fluid from corroding the valve stem. The other end is placed between the valve body and the valve cover to form a static seal. The double sealing design ensures that if the bellows fail, the valve stem packing will also prevent leakage. The bellows are welded to the valve stem to maintain stable operating performance and avoid valve stem vibration caused by disc vibration. Standard design includes double bellows, heat-dissipating valve cover design, lubricant storage device design, circlip-fixed valve stem nut design, reasonable product structure, reliable sealing performance, and aesthetically pleasing appearance., The sealing surface is overlaid with Co-based hard alloy, offering wear resistance, corrosion resistance, good anti-friction performance, and long service life., The valve stem is tempered and surface-nitrided, providing excellent corrosion and friction resistance., Valve stem lifting position indicator for more intuitive operation., Component materials, flange, and butt-weld dimensions can be reasonably selected based on actual working conditions or user requirements to meet various engineering needs., The key component of the bellows globe valve is the metal bellows. The lower end is automatically roll-welded to the valve stem assembly, and the upper end is automatically roll-welded to the connecting plate, forming a metal barrier between the fluid medium and the atmosphere, ensuring zero leakage of the valve stem; friction-free switching, wear-resistant sealing, and low opening and closing torque. This globe valve adopts a unique bellows sealing design, completely eliminating the problem of valve stem packing seal leakage and meeting the most stringent leakage level requirements. The zero-leakage characteristic of the bellows globe valve improves equipment safety, saves significant energy, reduces maintenance costs, and provides a clean and safe working environment for industrial applications.
NIKONiko American Standard Bellows Globe Valve Structural Features: The product has a reasonable structure and reliable sealing, with a double robust bellows sealing design (bellows + packing) ensuring zero leakage of the valve stem. No fluid loss, reduced energy loss, and improved plant equipment safety. Complies with international sealing standards. The sealing surface is overlaid with Co-based hard alloy, offering wear resistance, corrosion resistance, good anti-friction performance, and long service life. The valve stem is tempered and surface-nitrided, providing excellent corrosion and friction resistance; valve stem lifting position indicator for more intuitive operation., Double bellows, easy maintenance, bellows-sealed valve stem, double sealing, position indicator, no lifting handwheel..

Applications: Petroleum, chemical, chemical fiber, power plants, steel plants, papermaking, thermal oil, steam, cold and hot water systems, and other industries and working conditions.