Tester- Manhole- Vacuum 26" Head

The Cherne® Air-Loc® Manhole Vacuum Tester with 26" Head (part #210268) vacuum-tests manholes in accordance with ASTM C1244. The 26" test head seals against the manhole opening, a vacuum is drawn on the structure, and the gauge is monitored for vacuum loss — quickly confirming whether the manhole is free of infiltration and exfiltration leaks before backfill or acceptance.

Key Features

• Tests per ASTM C1244 — the standard negative air pressure (vacuum) test method for concrete sewer manholes.
• 26" head size — sized to seal 26" manhole openings.
• Remote monitoring keeps crews safe — the operator monitors the test from grade, away from the danger zone, with no confined-space entry required for the test itself.
• Efficient and repeatable — an accurate, cost-effective alternative to water exfiltration testing for new, existing, and rehabilitated manholes.
• Works with Cherne® vacuum sources — pair with a Cherne® vacuum pump or vacuum generator to draw the test vacuum.

Applications

Used by municipalities, utility contractors, and inspection firms for acceptance testing of newly constructed manholes and verification of rehabilitated or existing structures per ASTM C1244.

Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — we ship within the USA and welcome tax-exempt purchasing for qualified accounts.