Bellows Seal Globe Valve
Bellows seal din globe valve is engineered to provide zero stem leakage and reliable shut-off in demanding industrial applications. Engineered to the rigorous standards of leading industrial valve manufacturers, it features a robust, multi-ply stainless steel bellows that eliminates stem leakage, ensuring the safe containment of hazardous fluids, toxic media, and steam.Designed for accurate flow regulation and long-term durability, these valves are widely used in steam, thermal oil, toxic, hazardous, and high-purity service. Available in cast steel, forged steel, and stainless steel constructions with ANSI, DIN, and BS standards, Bellows Seal Globe Valves deliver safe, maintenance-friendly, and environmentally compliant performance across power generation, chemical processing, oil & gas, and petrochemical industries.
Specification of bellows seal gate valve
|
Parameter |
Specification |
|
Size Range |
DN15–DN1200 (NPS 1/2"–48") |
|
Pressure Rating |
Class 150–2500 / PN16–PN420 |
|
Body Materials |
Carbon Steel, Cast Steel, Stainless Steel, Alloy Steel |
|
Bonnet Type |
Bolted Bonnet, Pressure Seal Bonnet |
|
Bellows Material |
SS304, SS316, SS321, Inconel (Optional) |
|
Trim Material |
13Cr, SS304, SS316, Stellite Overlay, Alloy Steel |
|
Seat Type |
Renewable Seat, Integral Seat |
|
Stem |
Rising Stem, Non-Rotating Stem |
|
End Connection |
Flanged, Butt Weld, Socket Weld, Threaded |
|
Operation |
Handwheel, Gear Operator, Electric Actuator, Pneumatic Actuator |
|
Design Standard |
API 602, API 623, BS 1873, DIN 3356 |
|
Face-to-Face |
ASME B16.10, EN 558 |
|
Flange Standard |
ASME B16.5, EN 1092-1 |
|
Butt Weld Standard |
ASME B16.25 |
|
Inspection & Testing |
API 598, ISO 5208, EN 12266 |
|
Leakage Class |
ISO 15848, TA-Luft Low Emission (Optional) |
|
Working Temperature |
-196°C to +600°C (Depending on Material) |
|
Application |
Steam, Thermal Oil, Hot Water, Toxic Media, Heat Transfer Fluid, Chemical, Petrochemical, Oil & Gas, Power Plant |
Features of Bellows Seal Globe Valve
Zero Stem Leakage Design
A hermetically welded metal bellows creates a permanent seal between the process media and the atmosphere, effectively eliminating stem leakage.
Dual Sealing Protection
Combines a welded bellows with a conventional stem packing as a secondary seal, ensuring continuous sealing performance even if the bellows reaches the end of its service life.
Fugitive Emission Control
Specifically engineered to minimize fugitive emissions, making it ideal for handling toxic, hazardous, explosive, or environmentally sensitive media.
Packing-Free Stem Movement
The stem operates within the bellows assembly, significantly reducing packing wear, adjustment requirements, and maintenance frequency.
Extended Valve Service Life
Precision-formed stainless steel bellows are designed to withstand thousands of operating cycles while maintaining reliable sealing integrity.
Ideal for Critical Process Applications
Particularly suitable for steam systems, heat transfer oil, high-temperature fluids, vacuum service, and aggressive chemical media where external leakage cannot be tolerated.
Enhanced Personnel and Environmental Safety
Prevents hazardous media from escaping to the atmosphere, improving workplace safety and supporting compliance with stringent environmental regulations.
Low Life-Cycle Maintenance Cost
Eliminates routine packing replacement and stem leakage repairs, reducing downtime and long-term maintenance expenses.
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