Cherne® 32" Plate-Style Air-Loc® Head Assembly, 18" - 42"

The Cherne® 32 in. Plate-Style Air-Loc® Head Assembly (part #220328) is the sealing head for Cherne's plate-style manhole vacuum testing system. The 32 in. plate seals against the manhole cone or rim so a vacuum can be drawn in the structure and monitored for loss — a fast, accurate way to prove a manhole is tight.

Key Features

• ASTM C1244 test method — supports vacuum testing of new, existing, and rehabilitated manholes.
• Effective plate seal — the gasketed 32 in. plate seats on the cone surface for a leak-free test seal.
• Lightweight aluminum construction — easy for a crew to place and remove between structures.
• Remote monitoring — hose-and-gauge monitoring keeps the operator away from the opening during the test.

Applications

Municipal utilities and sewer contractors use plate-style vacuum testers for acceptance testing of new manholes and for verifying rehabilitated or suspect structures — vacuum loss on the gauge immediately reveals leaks at joints, boots, and grade rings.

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.