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Spool type rubber expansion joint

Style 204 spool-type expansion joints are commonly used in vacuum applications and can be manufactured as single, multiple, or filled arches. They can connect pipe flanges concentrically or eccentrically to connect pipes of varying diameters.

Features / Benefits
  • Comprehensive laboratory and field testing for long life and excellent reliability
  • No flanges required for seamless flange surfaces
  • High pressure and vacuum resistance increase safety and ensure suitability for a wide range of applications
  • Customizable design with stronger sports performance and more convenient installation
  • Various synthetic rubber and fabric combinations to meet temperature, pressure and media requirements
Standard design

tube
  • Chlorobutyl rubber resists cracking caused by high temperatures, weathering, oxidation, and chemicals
  • Pointed arch structure provides maximum motion and maximum pressure and vacuum resistance
  • Seamless tube creates a reliable flange seal without gaskets

main body
  • Chlorinated butyl rubber / polyester structure with welded and treated metal body ring to maintain dimensional stability

cover
  • Chlorobutyl rubber extends to outer flange diameter
  • Durable coating resistant to weathering and oxidation

Optional structure
  • Multi-arch for higher movements
  • Filled arch to eliminate dielectric buildup
  • Oversized arch for higher movements
  • Concentric or eccentric taper for pipes of unequal diameter
  • Custom Drilling-ANSI, DIN, AWWA, BS, JIS and other special drilling types available on request
  • End-to-end
  • Offset, lateral, angled and twisted

Special lining and cover materials
  • Chlorosulfonated polyethylene
  • EPDM rubber
  • Nitrile rubber
  • Neoprene
  • Natural (only tube)
  • EPDM rubber, neoprene and natural rubber FDA tube
specification
  • Nuclear Energy-10CFR50 Appendix B, 10CFR21 and NQA-1 Basic
  • Minimum temperature: -20 ° F / -29 ° C
  • Maximum temperature: 400 ° F / 205 ° C
  • Maximum pressure: 165 psi / 11 bar
  • Maximum inner diameter: 120 in / 3000 mm
  • Vacuum degree: 30in Hg / 750mm Hg
application
  • Rigid piping system
  • Compensates axial, lateral, torsional and angular motion
  • Compensation misalignment
Ranch