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The Slurryflex SJA-Series Single Arch Rubber Expansion Joint provides vibration control, compensates for pipework misalignment, and allows for thermal expansion in abrasive slurry applications. The single-arch configuration increases the range of movement of the joint.

This expansion joint is suited to the transfer of abrasive slurries, sand, and gravel in mineral processing plants, and tailings lines. It’s also available in custom designs for specialty applications such as fluids or slurries containing chemicals, acids, and hydrocarbons.

All of our Slurryflex expansion joints are custom made in Australia from premium materials. Tell us about your application and we’ll help you choose the right materials, size, length, and end connections.

Technical specifications





Joint diameter

DN50–1500 (2–60”)
Contact us for larger sizes

Joint lengths

Custom lengths to suit requirements

End connections

Fixed flange
Beaded end swivel flange

Flange drillings

AS2129, ASME, BS, SABS, JIS, DIN, custom

Pressure rating

Up to 5000kPa as standard
Contact us for special requirements

Safety factor

4:1 for minimum burst pressure as standard
Contact us for special requirements

Temperature rating

-30°C to +75°C as standard
Contact us for special requirements

Material specifications

Inner liner

Slurryflex Grade-A Rubber, proprietary compound for wear performance in abrasive slurries Contact us for other specialty applications

Outer cover

Proprietary rubber compound for UV, ozone, and abrasion resistance

End connections

Carbon steel (painted, galvanised, custom)
Stainless steel (SS304, SS316)
Exotic alloy (on request)

How we help you select your SPI package:

1. Tell us what you need

Tell us about your project. What items are on your MTO list, and what options do you need to weigh up?

2. Choose the right solution

Weigh up the options. We'll do the analysis, discuss the options with you, and recommend the right products—the choices we'd make in your shoes.

3. Get the job done

You get the complete package delivered to site as ordered. The right price, reliable delivery, and everything to spec. No surprises.

We're here to help

Got questions? Need advice? Tap into our experience and get specialist advice from our friendly team.

Slurry piping audits

Solve slurry piping maintenance problems for good. No more leaking pipes, no more unplanned shutdowns.