CHERNE
- Air Loc®
Manhole Vacuum Testing Equipment
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BACK CHERNE
MAIN PRODUCTS PAGE PLUG SAFETY
CHERNE PLUMBING PRODUCTS |
Plate Style Manhole Vacuum Test |
Bladder Style Manhole Vacuum Test |
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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. The Air-Loc
manhole testing system allows you to test manholes within minutes. It
provides immediate leak detection, before or after ring installation and
backfilling, while also eliminating expensive/time-consuming water
tests. Manhole testing is performed by creating a vacuum in the manhole
and monitoring a gauge for vacuum loss. The head assemblies are made of
lightweight aluminum, making them the lightest units available. |
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Plate
Style - Seals from or top of cone. Works great if manhole is
exposed or before backfilled.
MOST POPULAR STYLE |
Bladder
Style - Seals inside the frame and above or below grading
rings. Works well on both existing and newly installed manholes. |
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Air-Loc
Manhole Testers conform to ASTM Specification C1244 Standard Test for
Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test and
ASTM C1227 Standard Test for Pre-cast Concrete Septic Tanks. |
Vacuum Generator with Plate |
Vacuum Generator |
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The
Air-Loc Vacuum Generator* allows vacuum testing of a manhole without the
use of a separate vacuum pump. This device turns your standard air
compressor into a vacuum generator for testing manholes. Simply attach
the unit to a head assembly and an air compressor to draw a vacuum in
minutes. Using a 100 PSI air compressor with a minimum output of 7 CFM,
the Cherne Vacuum Generator draws up to 9 CFM at 10" hg. The Vacuum
Generator draws 10" hg vacuum in a 10" manhole in
approximately 3 minutes, while a the vacuum pump draws 10? hg vacuum in
approximately 2 minutes. |
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Soapy
Bubble Leak Detection Test- Manhole testing is performed by
creating a vacuum in the manhole and monitoring a gauge for vacuum loss.
If a loss does occur, there is a simple way to locate the leak. You
simply pour soapy water on the inside walls of the manhole, draw another
vacuum and then look for the bubbles and you have identified the
location of your leak. |
