Pressure Balanced Pipe Expansion Joints

There are two basic types of pressure balanced pipe expansion joints, those that are designed to accept only axial movements in straight pipe lines (commonly referred to as In-line Pressure Balanced Expansion Joints) and those that are required to accept lateral and axial movements in combination due to a change of direction in the pipe line, the latter being characterised by an integral ‘elbow’ forming part of the expansion joint.
In situations where there is limited space or where sufficient anchoring of the system is impractical, pressure balanced expansion joints are an ideal solution given that they are ‘restrained’ joints, therefore only relatively light anchoring is required as the pressure thrust generated is contained by the integral tie-bar arrangement.
Diameter:
50mm dia. to 3000mm dia.
Length: To suit the application
Membrane options:
Single or multiply
Internal flow sleeves and liners
External protective shrouds
Materials:
300 series Stainless Steel,Nickel Alloys
Others On request
End Connections:
Flanged – PN, ANSI, JIS, V form
Fixed or Swivel flanges
Weld end, slotted
Others on request
Restraints:
Tie rods
Operating Temperatures:
-200c to 800c
Operating Pressures:
-1 bar to 25 bar
Specials on Request