Style 204 Narrow Arch Expansion Joint

• Fully laboratory and field tested for long life and exceptional reliability
• High pressure and vacuum resistance offer increased safety and ensure suitability for a wide range of applications
• Single and multi-arch designs are available for a range of movement capabilities
• Concentric and eccentric reducing configurations can be provided to join piping of unequal diameters
• Available in a variety of elastomers and fabric combinations to meet the varied demands of temperature, pressure, and media

• Size:
  
  > Min. Inner Diameter: 0.5 in / 13 mm
  
  > Max. Inner Diameter: 120 in / 3000 mm
  
   
• Temperature:
  
  > Max temperature rating is based on the lowest temperature of the material selected
  
   
• Pressure and Vacuum Rating:

• Vacuum Rating (29.9 In. Hg (750mm Hg.)
  
  > Full vacuum rating for all sizes and face to face
• > Style 204EVS available for continuous full vacuum service

• Canadian Registration Number (CRN) - All Provinces - 204HP (1/2" - 96" ID)
• 10CFR50 Appendix B - 204, 204HP, 204EPS
• ABS Type Approval - 204HP (1/2" - 96" ID)
• ASTM F-1123 Compliant - 204HP, 204MAX on request

• Rigid piping systems
• Compensate for axial, lateral, torsional, and angular movement
• Compensate for misalignment

For more info on these materials click here.

• ABRA-LINE™: +180°F  (+80°C)
• ABRA-SHIELD^®: +300°F (+150°C)
• Natural Rubber: +180°F (+80°C)
• GUARDIAN^® FEP: +400°F (+205°C)
• FKM (Fluoroelastomer): +400°F (+205°C)
• CSM: +250°F (+120°C)
• SURE-TEC™ FDA/NSF-61 EPDM +250°F (+120°C) 
• EPDM/FDA EPDM: +300°F (+150°C)
• HNBR (Hydrogenated Nitrile): +300°F (+150°C)
• Nitrile/DETECTOMER^® FDA Nitrile: +250°F (+120°C)
• Chlorobutyl (Standard): +250°F (+120°C)
• Neoprene/FDA Neoprene: +250°F (+120°C)

Standard Design

Tube

• Chlorobutyl resists cracking due to high temperatures, weathering, oxidation, and chemicals
• Abrupt arch configuration provides maximum movement and maximum pressure and vacuum resistance
• Seamless tube creates a positive flange seal without gaskets

Body

• Chlorobutyl/polyester construction with welded, treated metal body rings for dimensional stability

Cover

• A homogeneous layer of chlorobutyl fully extends to the outside edge of the flange
• A durable exterior coating futher protects the expansion joint from the effects of weathering and oxidation

Optional Configurations

• Multiple arch for higher movements
• Filled arch to eliminate media buildup
• Oversized arch for higher movements
• Concentric and eccentric tapers to connect piping of unequal diameter
• Custom Drilling - ANSI, DIN, AWWA, BS, JIS, and special drilling patterns available on request
• Extended face-to-face
• Accommodate misalignment: lateral, angular, and torsional offsets