Cherne Air-Loc Manhole Vacuum Testers,Manhole Vacuum Testing

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

• Designed to seal manhole cone surface
• Seals a wide range of manhole diameters
• Neoprene gasket for leak-free seal

• Choose a Honda or Briggs & Stratton engine–each with low-oil shut-off to prevent engine failure
• Heavy-duty frame with optional wheel kit
• Unbreakable aluminum filter jars
• Oil-free graphite vane pump for no-fuss lubrication
• Draws 10″ Hg vacuum in about two minutes for a 15′ deep manhole (18 CFM at 10″ Hg)

• Converts standard air compressor into a vacuum source for testing manholes–draws a vacuum in minutes
• Vacuum Generator 460 delivers 14 CFM at 10″ Hg
• Air compressor: minimum 7 CFM at 100 PSI

• Vacuum Generator 600 delivers 42 CFM at 10″ Hg, meeting or exceeding the competition
• Air compressor: minimum 85 CFM at 100 PSI

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