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Highlight: Bellows Globe Valve
Product introduction:
Bellows-sealed gate valves, also known as bellows-packaged gate valves, form a metallic barrier between the fluid medium and the atmosphere through automated roll welding, ensuring zero stem leakage. The valve stem features a dual-sealing structure combining bellows and packing, guaranteeing leak-proof sealing, particularly suitable for pipelines carrying flammable, explosive, toxic, or valuable media. The bellows are crafted from stainless steel or Inconel, with a scientifically designed structure that resists fatigue and ensures extended service life.
Product technical parameters:
Nominal Pressure PN(MPa) |
1.0 - 4.0 |
|
Nominal Diameter DN(mm) |
15~600 |
|
Test pressure (MPa) |
Strength (water) |
1.5 times of pressure nominal |
Sealing (water) |
1.1 times of pressure nominal |
|
Sealing (Air) |
0.6 times of pressure nominal |
|
Sealing for bellows (water) |
1.5 times of pressure nominal |
|
Raw material |
WCB, CF8, CF8M |
|
Medium suitable: |
Water, steam, oil mediums |
|
Working temperature |
-196℃~600℃ |
|
Connection type |
Flange |
|
Operational method |
Hand-wheel, bevel gear, pneumatic and electric actuators |
Product features: