Cherne Air-Loc Bladder Manhole Testers – ASTM C1244 Vacuum Test Kit with Remote Inflation, Aluminum Brace & Hose | Fast, Safe Sewer Testing | Multiple Sizes

Cherne® Air-Loc® Bladder Style Manhole Testers – Fast, Safe & Cost-Effective Vacuum Testing

The Cherne® Air-Loc® Bladder Style Manhole Testers provide municipalities, contractors, and utilities with a safe, efficient, and cost-effective method for vacuum testing manholes in accordance with ASTM C1244 standards. Designed for testing new, existing, or rehabilitated manholes, these testers create a vacuum and monitor for pressure loss to quickly identify infiltration and exfiltration issues.

Unlike traditional water testing, vacuum testing with Air-Loc® is faster, less expensive, and requires less cleanup. The remote-inflation and monitoring system keeps operators outside the "danger zone," enhancing jobsite safety while ensuring reliable results.

Key Features: Safety, Accuracy & Efficiency

• ASTM C1244 Compliant – Meets industry standards for vacuum testing manholes.

• Vacuum Testing Method – Creates a vacuum inside the manhole and monitors for vacuum loss to detect infiltration/exfiltration.

• Bladder-Style Head Assembly – Seals securely inside the diameter of the manhole frame or cone.

• Remote Inflation & Monitoring – Keeps users safely away from the testing area.

• Durable Aluminum Brace – Provides strong support during setup and testing.

• Push-Pin Rod Adjustment – Allows quick and easy depth adjustments for secure positioning.

• Includes 20' Hose & Gauge – Provides accurate readings while maintaining operator distance.

Available Sizes

• 210248 – 24" Tester: Seals 20"–24.3" openings

• 210268 – 26" Tester: Seals 21.5"–26.3" openings

• 210298 – 29" Tester: Seals 24"–29.3" openings

• 210308 – 30" Tester: Seals 25"–30.3" openings

• 210328 – 32" Tester: Seals 27.5"–32.8" openings

Common Applications

• Municipal Sewer Systems – Verify new or rehabilitated manholes are watertight.

• Utility Contractors – Quickly test for infiltration/exfiltration in manhole installations.

• Wastewater Treatment Projects – Ensure manholes meet compliance before operation.

• Rehabilitation Projects – Accurately test lined or repaired manholes for structural integrity.

Recommended Equipment for Use with Air-Loc® Bladders

• For a complete manhole testing setup, pair these testers with the Cherne® Air-Loc® Vacuum Pump – designed to quickly draw and hold vacuum pressure in manhole testing applications.
• As an alternative solution, use Cherne® Vacuum Generators – which operate with an external air compressor to provide reliable vacuum testing performance.

A Safer, Faster Alternative to Water Testing

The Cherne® Air-Loc® Bladder Style Manhole Tester saves time and costs by eliminating the need for water filling and disposal, while improving operator safety with its remote setup and monitoring system. Rugged, accurate, and ASTM-compliant, this tool is trusted across the waterworks industry for reliable manhole vacuum testing.