Overview |
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Rubber expansion joints are also called flexible joint, rubber compensator or vibration absorber. Due to the flexibility of rubber, beside metal expansion joints, rubber expansion joints are always introduced to the piping system to solve some certain problems.
Rubber expansion joints Threaded Union Type 1033 are molded with two arches. Different with other types, Type 1033 expansion joints are completed with BSPT or NPT threaded unions, it connect with male or female unions in the pipe line.
Features and Benefits |
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Absorb vibration
Makeup piping misalignment
Offset thermal movement
Release piping stress
Cost-effective
Lessweight
Connect with threaded unions, quick installation
Suitablefor high pressure application
Supply Range |
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Size: 25mm to 1200mm
Temperature: -40℃ to 120℃
Fluid: Water, Swage, Acid, Alkali, Oil, etc.
Pressure Rating: PN16
Part & Options |
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| Item | Part | Available Material | Quantity |
| 1 | Bellows | EPDM/NR/NBR/Neoprene/Hypalon | 1 |
| 2 | Threaded Union | Cast Iron/Carbon Steel/Stainless Steel | 2 |
| 3 | Back Ring | Cast Iron/Carbon Steel/Stainless Steel | 2 |
| 4 | Carcass | Synthetic Fabric | 1 |
| 5 | Reinforcement | Steel Wire | 1 |
| 6 | Bolt | Carbon Steel | 6 |
| 7 | Nut | Carbon Steel | 6 |
Data Sheet |
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| Size | L | Pressure | Vacuum | Threaded Union | Movements | |||
| mm | mm | bar | mbar | Comp.(mm) | Ext.(mm) | Lateral(mm) | Angular(°) | |
| 15 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 45 |
| 20 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 45 |
| 25 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 45 |
| 32 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 40 |
| 40 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 35 |
| 50 | 200 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 35 |
| 65 | 265 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 35 |
| 80 | 280 | 16 | Max | NPT/BSPT | 22 | 5 | 22 | 35 |
PS: |
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Pressure rating is for rubber bellows on base of 31 ℃, when higher temperature the pressure rating will reduce.
Movements in above table are non-concurrent.
Test pressure is 1.5 times the pressure rating. UNICK rubber expansion joints could take 3 times design pressure for safety.
Our threaded union stock is BSPT, please ask sales of UNICK if you need NPT.
