Cherne 286858 Fixed Steel Deflection Gauge, 18", PS 115 (SDR-26)

Cherne, 286858, 7.5% Fixed Steel Deflection Gauge, 18", for PS 115 (SDR-26) Pipe per ASTM F679

Deflection Gauge (mandrel) used to test flexible sewer pipe for out-of-roundness 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.

Features:

• 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