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Expansion Joint, Union Type B

The Union type rubber joint rubber body of  The B are connected by the bolted nuts rubber joint, the advantage is that the damaged rubber body can be replaced, which saves the cost and is more convenient to use

Expansion Joint, Union Type B Dimensions

SIZELAxial   displacementHorizontal displacementDeflexion angle
ExtensionCompression
DN202005-6222240°
DN252005-6222240°
DN322005-6222240°
DN402005-6222240°
DN502005-6222240°


Expansion Joint, Union Type B VS Expansion Joint, Union Type A

1. Material (Similarity):

Both union material of  type A and type B 's are malleable iron,Both rubber material can be Neoprene.EPDM,NBR.

2. Pressure (Similarity):

Both pressure of type A and type B 's are Class150,PN10/16,JIS 10K/16K

3. Range of Applications (Similarity):

Size: 1 1/4"-120" (DN32-DN3000)

Material of Rubber: Neoprene, EPDM, NBR.


4. Installation (Difference and Similarity):

Type B  expansion joint is separated from union, which can be disassembled and replaced. The connection method of A & B type is the same,with the threaded connection.

Expansion Joint, Union Type B FAQs

Q 1. What Are the Advantages for Rubber Expansion Joints?
A.

(1)Reduce pipeline system vibration and noise


(2)Good sealing, light weight, easy installation, long service life


(3)Solve the problem of axial movement, transverse movement, angular movement


(4)Acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance

Q 2. Are Gaskets Needed in the Installation of Expansion Joints?
A.

When flange expansion joints are installed to connect with raised face flanges, the use of ring gaskets are needed to prevent metal flange faces from cutting the rubber bead during installation.

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