Cherne Air-Loc® Manhole Testers
Air-Loc® Manhole Testers provide the most efficient, accurate, and cost effective method of testing new, existing, and rehabilitated manholes. Vacuum testing identifies infiltration and exfiltration problems.
This product is a special order. Please contact us for price and availability. Vacuum pump not included.
The Air-Loc manhole testing system allows you to test manholes within minutes. It provides immediate leak detection, before or after ring installation and backfilling, while also eliminating expensive/time-consuming water tests. Manhole testing is performed by creating a vacuum in the manhole and monitoring a gauge for vacuum loss. The head assemblies are made of lightweight aluminium, making them the lightest units available.
The Cherne vacuum pump draws 10″ hg at a rate of 15 CFM and features an oil-free graphite vane pump – no cumbersome lubrication system. Cherne’s pump also offers aluminium filter jars – will not break like competitor’s glass jars. The vacuum pump draws 10″ hg vacuum in approximately 2 minutes for a 15′ deep manhole.
The plate style tester seals the surface of the manhole frame or cone. It has a 1″ neoprene gasket to ensure a leak-free seal. Sealing a wide range of manhole diameters makes this a very versatile product.
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