Expansion joint, ball joint JB-13 type (single type) bellows type expansion joint
It absorbs the axial expansion and contraction of the pipe caused by temperature changes.
- Where to use
- Building equipment / air conditioning equipmentFactory equipment
Major features
- Stainless steel bellows and inner cylinder made by a unique molding and fixing method, with excellent durability and corrosion resistance.
specification
| Product code | JB13-N |
|---|---|
| Valve type | Bellows type expansion joint |
| Nominal diameter | 20-350 (3/4-14) |
| Applicable fluid | Steam, air, inert gas, water, hot water, oil |
| Fluid temperature | 220 ℃ or less |
| Maximum working pressure | 1.0MPa |
| End connection | JIS 10K flangeThe gasket seat of the flange is RF, but the dimensions of the flat seat (seat plate) are different from JIS B 2220. |
| Expansion and contraction amount | 35mm |
| Growth | 10mm |
| Shrink | 25mm |
| Material Flange | Rolled steel |
| Material outer cylinder | Rolled steel |
| Material Inner cylinder | SUS316L |
| Material bellows | SUS316L |
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Frequently Asked Questions and Explanations
Can the direction of rotation be absorbed?
The sleeve type can also absorb the shaft rotation of the pipe. (The bellows type cannot be absorbed and the bellows will be damaged.)
Is the amount of pipe elongation constant regardless of the nominal diameter?
Since the amount of elongation is determined by the temperature difference, it is constant regardless of the nominal diameter of the pipe. However, it depends on the type of pipe (steel, copper, stainless steel).
Is there a rule on whether to use a single type or a double type of expansion joint?
There is no rule. It doesn't matter which one you choose, as long as you select the number of pipes that matches the amount of expansion and contraction of the pipe.
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