Cherne Deflection Gauges | Sewer Equipment

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We're still open and delivering orders but due to the current situation with Covid-19, some of our prices and delivery times have changed.

Cherne Deflection Gauges

COVID-19 Update

We're still open and delivering orders but due to the current situation with Covid-19, some of our prices and delivery times may have changed. Please contact your local rep or request a quote using the tab below and a rep will be in contact with you as soon as possible. Rep’s numbers are:

ACT/NSW – Pete Sinclair, 0414 979 418

VIC/TAS/SA – Callan Hill, 0414 361 897

QLD/WA/NT – Steve Ault, 0491 217 134

 
Deflection Gauges
Deflection Gauges (mandrels) are used to test flexible sewer pipe for out-ofroundness or deflection per ASTM specifications D3034 and F679. This testing ensures that flexible pipe has been properly
bedded and backfilled (ASTM D2321) to give optimal performance.
Both steel and aluminum gauges utilize a nine arm design to ensure the pipe is tested accurately. This design also allows gravel and debris to easily pass through.
Other gauges can get hung up – causing a deflection test to fail, even though the pipe is within tolerance. Sized to .01" , both deflection gauge styles meet ASTM requirements.
 
Aluminum Fin Style Deflection Gauge:
• Lightweight, corrosion-resistant
• Field-verifiable without a proving ring
• Assembles without tools
• All sizes fit through standard 24" manhole
• Fins for 4"-15" gauges have skid size equal to the nominal pipe size—gauge will meet regional codes and will not tip in the line
• Nine-fin design ensures testing accuracy
• Open design allows gravel and debris pass-through
 
Fixed Steel Style Deflection Gauge:
• Durable, zinc-plated construction resists corrosion
• Conforms to mandrel sizing specifications—blade length is equal to or greater than the nominal pipe size
• Nine-arm design ensures testing accuracy
• Open design allows gravel and debris pass-through
 
Proving Ring:
• Used to verify deflection gauge sizes
• Standard sizes: 6"-15" SDR 35 5% deflection and 8"-12" SDR 35 7.5% deflection
• Custom sizes for 5"-18" also available

Downloads

AttachmentSize
PDF icon Deflection Gauges.pdf647.62 KB

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