Product Style

DHF

Double Expansion Joint with Flanges and Hinge System

Specifications

Available Diameters

25mm -3000mm

Available Lengths

To Suit Application

Movement Type

ANGULAR and LATERAL movement in 1 directional plane only. Hinged units are commonly used in series as ”2 or 3 pin” systems, hinged joints installed in series offer ANGULAR and LATERAL movement but also convert AXIAL movement to ANGULAR movement in service.

Typical Process Media

  • Exhaust or Flue Pipework
  • Water systems
  • Gas systems – LPG, Natural Gas
  • Nitrogen
  • Oxygen
  • Air
  • Chemical
  • Vacuum

Available Materials

300 series Stainess Steel, Inconel, Hastalloy, Monel

Membrane Options

Single or Multiply Membranes

End Connections

Bolted Flanges:

  • PN
  • ANSI
  • JIS

V Form Flanges:

  • Over 400 V form profiles available.

Restraints

Directional Hinge Assembly

Operating Temperatures

*Note Stated Temperatures are for guidance only. For specific temperature ratings for each expansion joint type and design please contact our Engineering Department.

Product design range capability -200c to 800c

Operating Pressures

*Note Stated pressures are for general guidance at ambient temperature. For specific ratings for each expansion joint type and design please contact our Engineering Department.

Product design capability - 1 bar to 25 bar