Products Testing Equipment / Tools & Accessories Vacuum Manhole Testing

Vacuum Manhole Testing

Cherne® Air-Loc® Manhole Testers provide the most efficient, accurate and cost-effective method of testing new, existing, and rehabilitated manholes.  Vacuum testing identifies infiltration and exfiltration problems by creating a vacuum in a manhole then monitoring a gauge for vacuum loss. 

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675115210240_H_001.jpg - Cherne® 26" Bladder, Replacement

Cherne® Bladder Style Manhole Testers

Cherne

Waterworks

Vacuum Manhole Testing

Cherne Air-Loc Bladder Style Manhole Testers seal the inside diameter of the manhole at frame or cone

Supported by a durable aluminum brace

Push-pin rod design for easy depth adjustment

No

Includes a 20' hose with gauge

Includes a 20' hose with gauge

Includes a 20' hose with gauge

Yes

includes a 20' hose with gauge

includes a 20' hose with gauge

includes a 20' hose with gauge

includes a 20' hose with gauge

includes a 20' hose with gauge

includes a 20' hose with gauge

Includes a 20' hose with gauge

675115251434_H_001.jpg - Cherne® Cover Hook with Flat Handle, 24 in. Mahole Cover

Cherne® Manhole Cover Hooks

Cherne

Waterworks

Manhole Jack, Winch & Roller

Available with flat or 90 degree handles

No

Yes

675115220324_H_001.jpg - Cherne® 32" Tester. Seals 18" – 30" openings

Cherne® Plate Style Manhole Testers

Cherne

Waterworks

Vacuum Manhole Testing

Cherne Air-Loc® Plate-Style Manhole Tester are designed to seal manhole cone surface

Seals a wide range of manhole diameters

Neoprene gasket for leak-free seal

includes a 20' hose with gauge

No

Yes

200-468_h.jpg - Cherne® Vacuum Generator 460

Cherne® Vacuum Generator 460

Cherne

Waterworks

Vacuum Manhole Testing

Vacuum generator 460 delivers 14 CFM at 10" Hg

Air compressor minimum 7 CFM at 100 psi

Vacuum generators may also be used as a rapid deflator for large diameter plugs to significantly reduce the time to deflate

No

675115200906_H_001.jpg - Cherne® VACUUM GENERATOR 600 HI-FLOW

Cherne® Vacuum Generator 600

Cherne

Waterworks

Yes

Vacuum Manhole Testing

Vacuum generator 600 delivers 42 CFM at 10" Hg

Air compressor minimum 85 CFM at 100 psi

Vacuum generators may also be used as a rapid deflator for large diameter plugs to significantly reduce the time to deflate

No

675115278165_H_001.jpg - Cherne® FILTER- GAST VACUUM PUMP

Cherne® Vacuum Pump

Cherne

Waterworks

Vacuum Manhole Testing

No

Pump features: Honda or Briggs & Stratton engine each - each with a 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 in. Hg vacuum in about 2 minutes for a 15' deep manhole (18 CFM at 10 in. Hg)

Generator features; Converts standard air compressor into a vacuum source for testing, Vacuum generator 460 delivers 14 CFM at 10 in. Hg - air compressor minimum 7 CFM at 100 PSI, Vacuum generator 600 delivers 42 CFM at 10 in. Hg - air compressor minimum 85 CFM at 100 PSI

Pump features: Honda or Briggs & Stratton engine each - each with a 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 in. Hg vacuum in about 2 minutes for a 15' deep manhole (18 CFM at 10 in. Hg)

Generator features; Converts standard air compressor into a vacuum source for testing, Vacuum generator 460 delivers 14 CFM at 10 in. Hg - air compressor minimum 7 CFM at 100 PSI, Vacuum generator 600 delivers 42 CFM at 10 in. Hg - air compressor minimum 85 CFM at 100 PSI

Honda or Briggs & Stratton engine each - each with a 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 in. Hg vacuum in about 2 minutes for a 15' deep manhole (18 CFM at 10 in. Hg)

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