Manufacturer: Venn Co., Ltd.
Model: JB-21
Features
- Durability improves by using double-layer bellows.
- In addition, all parts except the flange make of stainless steel.
- Moreover, a loose flange uses for the end connection.
- As a result, it absorbs circumferential misalignment of bolt holes and makes installation easier.
Specifications
| Product Symbol | JB21-N |
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| Types of valves | Bellows Shape Expansion Tube Fittings |
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| Nominal diameter | 20～300（3/4～12） |
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| Applicable fluids | Steam, air, inert gas, water, hot water, oil |
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| Fluid temperature | Below 220°C |
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| Maximum working pressure | 1.0MPa |
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| End connection | JIS 10K Loose Flange |
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| Expansion and contraction | 35mm |
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| Elongation | 10mm |
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| Shrinkage | 25mm |
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| Material: Flange | Rolled steel |
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| Material Outer cylinder | Stainless Steel |
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| Material: Inner Cylinder | A240-316L (SUS316L equivalent) |
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| Material: Bellows | A240-316L (SUS316L equivalent) |
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