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JB-18 Bellows Expansion/Contraction Pipe Fitting

JB-18 Bellows Expansion/Contraction Pipe Fitting

▪Expansion joints for 2.0 MPa having bellows made of SUS316L with excellent corrosion resistance and durable.
· The dimension between faces is the same as with the JIS-compliant JB-13 and JB-14 types.
· Excellent in corrosion resistance and durability because the liquid contact component is made of SUS316L.
· Absorbs expansion and contraction in the axial direction of the pipe caused by temperature changes.


Japanese Only

Part Number

Configured Part Number is shown.

Part Number
Part NumberVolume DiscountDays to ShipNominal Diameter
15 Day(s) or more 3/4B(20A)
89 Day(s) or more 1B(25A)
15 Day(s) or more 1 1/4B(32A)
89 Day(s) or more 1 1/2B(40A)
89 Day(s) or more 2B(50A)
15 Day(s) or more 2 1/2B(65A)
15 Day(s) or more 3B(80A)
15 Day(s) or more 4B(100A)
15 Day(s) or more 5B(125A)
15 Day(s) or more 6B(150A)
89 Day(s) or more 8B(200A)
89 Day(s) or more 10B(250A)


  1. 1

Basic Information

Fitting Type Bellows shape Applicable Fluid Steam / Water / Gas / Oil / Air End Connection JIS 20K RF flange
Wetted Materials Stainless Steel (SUS316L) Connecting Part Material S25C Maximum Applicable Pressure(MPa) 2.0
Fluid temperature(℃) 250 or Less

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