PTFE Rubber expansion joints，only have PTFE body without rubber.It can withstand a small working pressure.It's used in small pressure chemical lines.
Stainless Steel Bellows Expansion Joint
Expansion joint bellow:
4.Standard:GB/T12777-2008/DIN standard/BS standard
Axial bellows expansion joint
Specification: ID 2"-320"
Design Temp.: -200~1500 deg.C
Design Pressure: max 100 bar
Bellows Material: stainless steel 304/L, 321,316,316L,
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