ABRA-LINE® Style 4394
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Rubber Expansion Joints for Low Pressure Abrasive Applications
This multi-convoluted, lightweight expansion joint is designed for lower pressure applications that require significant amounts of movement, axially and/or laterally. Its low spring rates make it ideal for load cell, bin activator, vibrating bin, silo, and shaker boot applications.
Regional Availability Restrictions:
Not available in Europe
- Proprietary urethane formula designed for abrasive applications
- Lightweight design installs easily and costs less to ship
- Can be custom designed for greater movement capabilities
- Choice of construction materials available to suit a wide range of temperatures
- Available in flanged or sleeve type design, up to 48 inch max (1,219 mm) ID
(Contact Garlock® for larger ID sizes) - Max. Temperature with Urethane/Polyester:
+180°F / +82°C - Max. Pressure without external reinforcing rings:
up to 3 psi / 0.2 bar - Max. Pressure with external reinforcing rings:
up to 15 psi / 1.0 bar - Max. Vacuum without internal reinforcing rings:
up to 3 inHg / 75 mmHg - Max. Vacuum with internal reinforcing rings:
up to 15 inHg / 381 mmHg
Alternate Cover Materials
- CSM
- Nitrile
- Fluoroelastomer
- EPDM
- Neoprene
Optional Configurations
- Sleeve connections
- External and internal reinforcement rings
- Extended face-to-face
- Multiple convolutions for higher movements
Application Data Sheets
Garlock Rubber Expansion Joint Application Data Sheet
Technical Data
Expansion Joints Catalog – Technical Manual
Expansion Joints Catalog – Technical Manual (NA)
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Garlock ABRA-LINE Expansion Joints

Technical Data


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