Stainless Steel Bellow Sealed Globe Valve For Steam & Thermic Oil
Use
Product introduction:
Bellows sealed globe valve is a type of valve that adopts a bellows
sealed design, using automatic rolling welding to isolate fluid
medium and atmosphere through the expansion and contraction of the
bellows, forming a metal barrier between the fluid medium and
atmosphere to achieve zero leakage of the valve stem.
The bellows globe valve has a reasonable structure, reliable
sealing, excellent performance, and beautiful appearance. Its valve
stem and surface are treated with nitrogen, which has good
corrosion resistance and friction resistance; The sealing surface
is welded with Co based hard alloy, which has good wear resistance,
corrosion resistance, friction resistance, long service life,
reduces maintenance frequency, and lowers operating costs. Bellows
globe valves have no fluid loss, reduce energy loss, and improve
factory equipment safety. The characteristics of bellows globe
valves make them an indispensable fluid control equipment in the
industrial field, especially in situations that require strict
sealing and long-term stable operation.
Product technical parameters:
| Type Number | WJ41W-JGPV |
| Nominal Pressure PN(MPa) | 1.0 - 2.5 |
| 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 | 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:
1. Zero leakage: The sealing design of the bellows globe valve can
effectively prevent medium leakage, meet strict leakage level
requirements, improve equipment safety, reduce maintenance costs,
and provide a clean and safe working environment for industrial
applications.
2. Double sealing: In addition to bellows sealing, packing sealing
is usually equipped to provide double protection, even if the
bellows fails, the packing can prevent leakage.
3. Wear and corrosion resistance: The sealing surface of the valve
seat and disc is usually welded with cobalt based hard alloy, which
has high hardness, corrosion resistance, and wear resistance,
extending the service life.
4. Maintenance free: 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 standards and have strong
interchangeability.
5. Easy to operate: The valve stem quenching and surface nitriding
treatment has good corrosion resistance and friction resistance,
making the valve opening and closing torque small and reducing
labor intensity.
6. Strong adaptability: Bellows globe valves are suitable for
various media and working conditions, including high temperature,
high pressure, flammable, explosive, highly toxic, etc. They are
widely used in industries such as petroleum, chemical,
pharmaceutical, fertilizer, and power.
Product applications:
Chemical, petroleum, electricity, fertilizers, pharmaceuticals,
papermaking, and dye industries.
Especially suitable for pipelines with flammable, explosive, toxic,
and valuable mediums.
