Bellows Globe Valve
Product Overview
Our Bellows Globe Valve is specifically engineered for zero-leakage sealing in applications requiring exceptional sealing performance and protection against fluid loss. The bellows structure isolates the process media from the valve stem, preventing leakage and eliminating packing maintenance. Manufactured with forged or cast body options, our bellows valves offer reliable operation even in high-temperature and high-pressure conditions.
Vcore offers a wide range of bellows globe valves in stainless steel, carbon steel, and alloy steel materials to meet various industry demands, ensuring compliance with stringent safety and environmental requirements.
Key Features
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Full range of sizes and pressure ratings
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Suitable for vacuum and positive pressure systems
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Optional drain and bypass configurations
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Stem position indicator available
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Compact, space-saving design for tight installations
Technical Parameters
| Item | Specification |
|---|---|
| Product Name | Bellows Seal Globe Valve |
| Nominal Diameter | DN15 ~ DN300 |
| Nominal Pressure | PN10 ~ PN100 / Class 150 ~ 600 |
| Connection Type | Flange, Butt Weld, Socket Weld, Threaded |
| Operation | Handwheel, Gear Operated, Electric, Pneumatic |
| Body Material | WCB, CF8, CF8M, F11, F22, etc. |
| Bonnet Structure | Bolted Bonnet, Pressure Seal |
| Sealing Surface | Stellite alloy, PTFE, or Metal-to-Metal |
| Working Temperature | -29℃ ~ +425℃ / up to 600℃ (on request) |
| Applicable Medium | Steam, Oil, Gas, Water, Chemical Fluids |
| Design Standards | API 602 / DIN 3356 / GB/T 12235 |
| Test Standard | API 598 / ISO 5208 |
Main Dimensions & Weight(2.5,25)
| DN | L | D | D1 | D2 | D3 | b | f | f1 | D0 | H | Z – φ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 130 | 95 | 65 | 46 | / | 14 | 2 | / | 100 | 236 | 4 – 14 |
| 20 | 150 | 105 | 75 | 56 | / | 16 | 2 | / | 100 | 242 | 4 – 14 |
| 25 | 160 | 115 | 85 | 65 | / | 16 | 3 | / | 125 | 286 | 4 – 14 |
| 32 | 180 | 140 | 100 | 76 | / | 18 | 3 | / | 125 | 295 | 4 – 18 |
| 40 | 200 | 150 | 110 | 84 | / | 18 | 3 | / | 150 | 330 | 4 – 18 |
| 50 | 230 | 165 | 125 | 99 | / | 20 | 3 | / | 150 | 350 | 4 – 18 |
| 65 | 290 | 185 | 145 | 118 | / | 22 | 3 | / | 200 | 400 | 8 – 18 |
| 80 | 310 | 200 | 160 | 132 | / | 24 | 3 | / | 200 | 430 | 8 – 18 |
| 100 | 350 | 235 | 190 | 158 | / | 24 | 3 | / | 250 | 485 | 8 – 22 |
| 125 | 400 | 270 | 220 | 184 | / | 26 | 3 | / | 300 | 565 | 8 – 26 |
| 150 | 480 | 300 | 250 | 211 | / | 28 | 3 | / | 300 | 613 | 8 – 26 |
| 200 | 600 | 360 | 310 | 274 | / | 30 | 3 | / | 420 | 714 | 12 – 26 |
| 250 | 730 | 425 | 370 | 330 | / | 32 | 3 | / | 500 | 810 | 12 – 30 |
| 300 | 850 | 485 | 430 | 389 | / | 34 | 4 | / | 670 | 910 | 16 – 30 |
Functions and Benefits
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Zero Leakage Performance: Metal bellows isolate the fluid from the stem for absolute sealing.
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Double Sealing System: Bellows + packing structure ensures extended service life and safety.
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Anti-corrosion and Durable: Ideal for corrosive environments and toxic media.
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Maintenance-Free Design: No need for frequent gland adjustment or repacking.
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Fire Safe and Blow-out Proof: Safety is built into the design for critical operations.
Application Fields
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Petrochemical Refineries
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Steam Power Generation
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Chemical Processing Units
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Pharmaceutical Industry
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Fertilizer Plants
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Offshore and Onshore Oil & Gas
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High-temperature pipeline isolation