Spool-type Rubber Expansion Joints
Style 204 spool-type expansion joints are typically used in vacuum and pressure applications and can be constructed in single, multiple, or filled arch versions. They can connect pipe flanges in concentric or eccentric tapers in order to join piping of unequal diameters and connect misaligned piping.
View Expansion Joint Style 204 3D Model/Rendering
Regional Availability Restrictions:
Not available in Europe
FEATURES and BENEFITS
- Fully lab and field tested for long life and exceptional reliability
- Seamless flange face eliminates need for gaskets
- High pressure and vacuum resistance increases safety and ensures suitability for a wide range of applications
- Can be custom designed for greater movement capability and easier installation
- Variety of elastomer and fabric combinations meet the demands of temperature, pressure, and media
Specifications
- Size:
> Min. Inner Diameter: 0.5 in / 15 mm
> Max. Inner Diameter: 120 in / 3000 mm
- Temperature:
> Max temperature rating is based on tube, body and cover materials. To determine, find the minimum temperature based on materials selected.
Body Material | Max. Temp.
Polyester (Standard): +250°F (+120°C)
Fiberglass/Kevlar: +400°F (+205°C) - Pressure and Vacuum Rating:
- Vacuum Rating (all sizes and pressure classes):
> Full vacuum / 29.9 in Hg / 750 mm Hg
CERTIFICATIONS
- Canadian Registration Number (CRN) - All Provinces - 204HP
- Nuclear - 10CFR50 Appendix B, 10CFR21, and NQA-1 basic - 204, 204HP, 204EPS
- ABS Type Approval - 204HP
- ASTM F-1123 Compliant - 204HP, 204EPS
APPLICATIONS
- Rigid piping systems
- Compensate for axial, lateral, torsional, and angular movement
- Compensate for misalignment
LINER MATERIALS
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)
- EPDM/FDA EPDM: +300°F (+150°C)
- HNBR (Hydrogenated Nitrile): +300°F (+150°C)
- Nitrile/FDA Nitrile: +250°F (+120°C)
- Chlorobutyl (Standard): +300°F (+150°C)
- Neoprene/FDA Neoprene: +250°F (+120°C)
ADDITIONAL INFORMATION
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
- Chlorobutyl extends to outside flange diameter
- Durable coating resists 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
