Tester- Manhole- Vacuum 32" Head

The Cherne® Air-Loc® Manhole Vacuum Tester with 32" Head (part #210328) vacuum-tests manholes in accordance with ASTM C1244. The 32" test head seals against the manhole opening, a vacuum is drawn on the structure, and the gauge is watched for vacuum loss — proving out the manhole's integrity against infiltration and exfiltration before backfill or acceptance.

Key Features

• Tests per ASTM C1244 — the standard negative air pressure (vacuum) test method for concrete sewer manholes.
• 32" head size — sized to seal 32" manhole openings.
• Remote monitoring keeps crews out of the danger zone — the test is run and read from grade, with no confined-space entry required for the test itself.
• Accurate and cost-effective — an efficient 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.