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- Cherne® Aluminum Fin Style Deflection gas are designed to be field verified by inspectors without the use of a proving ring. Simply place two fins end-to-end as pictured below (1) and measure the width. Add one inch to the mandrel (2) and you have the outside dimension of the ga. Using this method simplifies the inspector's job of verifying sizes on deflection gas.
Cherne® Core Mandrel Assembly, 48 in Mandrel Length, Aluminum
- Lightweight and corrosion-resistant
- Field-verifiable without a proving ring
- Assembles without tools
- All sizes fit through standard 24 in manhole
- Fins for 4 to 15 in ga 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
- Core mandrel for aluminum finned deflection gauges
- Mandrel Length48 inMaterialAluminumManufacturerOATEYManufacturer #285488