Joint Tester 78"

The Cherne® Air-Loc® 78" Joint Tester (part #9158) tests individual joints in installed 78-inch large-diameter pipe. By isolating and pressurizing one joint at a time, it lets crews verify every joint in the line — and correct any defects — before backfill, per ASTM C1103 for installed precast concrete pipe.

Key Features

• Joint-by-joint testing — a short air test confirms each joint’s integrity without pressurizing the entire line
• Air or water testing — ready to test either way straight from the factory, no modifications needed
• Sleeveless lightweight aluminum design — easier assembly in manholes and inside large-bore pipe
• Quick-connect control panel — installs and removes quickly; top mounting won’t interfere with laser usage
• Pre-backfill acceptance — catch leaking joints while repairs are still easy

Applications

Municipal sewer and storm-drain contractors use it for pipeline acceptance testing of large-diameter installations per ASTM C1103.

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.