Stainless Steel Metal Bellows
Our metal bellows expansion joint is a flexible piping component manufactured in accordance with EJMA and GB/T 12777 standards. The bellows element is hydraulically formed from high-quality stainless steel, which can absorb axial, lateral and angular displacement caused by thermal expansion and contraction. It also isolates vibration, reduces noise and compensates installation deviation and foundation settlement.
With reliable sealing, high temperature resistance and excellent corrosion resistance, it works steadily under harsh conditions. Multiple material grades and connection types are available, and custom sizes are supported for different working conditions. It is widely applied in power, petrochemical, chemical, metallurgy, HVAC and water treatment piping systems.
| Item | Details |
|---|---|
| Bellows Material | SUS304, SUS321, SUS316L, SUS310S |
| End Material | Q235-A, stainless steel |
| Standard | EJMA, GB/T 12777 |
| Nominal Diameter | DN25 ~ DN3000 (custom acceptable) |
| Pressure Class | PN0.6 ~ PN16 |
| Working Temperature | -196℃ ~ 800℃ |
| Connection | Flange, Welded end, Thread |
| Factory Test | Hydrostatic test, air tight test |
We are direct manufacturer. We provide technical drawings, MTC and inspection reports. Strict pre-shipment inspection ensures quality.
