Bladder Style Manhole Vacuum Testers,Manhole Vacuum Testing  Bladder-style head assembly for Cherne Air-Loc manhole vacuum testers, illustrating sealing mechanisms at frame and cone top, highlighting efficient manhole testing features.

Cherne Air-Loc Bladder Style Manhole VacuumTesters  

Air-Loc® Manhole Vacuum Testers provide the most efficient, accurate and cost-effective method of testing new, existing and rehabilitated manholes, per ASTM C 1244. Vacuum testing identifies infiltration and exfiltration problems by creating a vacuum in a manhole and then monitoring a gauge for vacuum loss. Less expensive and faster than water testing, the Air-Loc® manhole tester’s remote-inflation and monitoring system keeps users away from the “danger zone.”

Bladder-Style Air-Loc® Head Assembly Features

  • Seals the inside diameter of the manhole at frame or cone
  • Supported by a durable aluminum brace
  • Push-pin rod design for easy depth adjustment
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Cherne Air-Loc® Bladder-Style Manhole Vacuum Tester with aluminum brace, remote-inflation system, and pressure gauge for efficient sewer testing.[PDF document icon representing specifications and details for Cherne Air Loc Manhole Vacuum Testers.

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PDF document icon representing specifications and details for Cherne Air Loc Manhole Vacuum Testers. 

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