Vacuum Test Plates
Comes with 1.5" vacuum port. Sizes: 12" | 24" | 36" | 42"
Note: The vac test plate needs to sit flush on top of the manhole.
If testing grade rings are present, an improper seal could become an issue.
Vacuum Test Plug Style recommended.
Features:
- Lightweight
- All Aluminum Construction (not cast)
- Easy to Use
- Replaceable Foam
Test Plug Instructions
Note: The Vacuum Test Plug works better on new applications or
when the manhole is back filled already
Vacuum Test Plugs, Manhole Bladders
Size Ranges: Required inflation pressure is 40 psi
- 18-24"
- 20-30"
- 24-30"
- 30-36"
Features:
- Lightweight
- All Aluminum Construction (not cast)
- Easy to Use
- Replaceable Foam
Venturi Vacuum Generators
Options:
- 40 CFM model: Vac port is 1.5" Camlock; Vacuum=40cfm @10"hg
- 27 CFM model: Vacuum port is 1.5" Camlock
- 27 CFM model with hose: Vacuum port is 3/4" Camlock
- Comes with 20 ft of 3/4" vacuum hose
25 CFM Motorized Vacuum Generator
Options:
- Equipped with Honda 5.5 hp motor
- 2 to 1 reduction
- Vacuum is 25 cfm @ 15" hg
- Vacuum port is 1"
- Wet Clutch
- Recoil Starter
Sizes & Specifications
Vacuum Test Plug
Cherne Air-LocŪ Manhole 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-LocŪ manhole tester's remote-inflation and monitoring system keeps users
away from the "danger zone."
Bladder-Style Air-LocŪ 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
- Includes 20' hose with gauge
Vacuum Test Plate
Plate-Style Air-LocŪ Head Assembly Features:
- Designed to seal manhole cone surface
- Seals a wide range of manhole diameters
- Neoprene gasket for leak-free seal
- Includes 20' hose with gauge
Sizes & Specifications
Vacuum Generators
Converts standard air compressor into a vacuum source for testing manholes-draws a vacuum in minutes.
Air-LocŪ Vacuum Generator Features:
- 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
- Vacuum generators may also be used as a rapid deflator for large diameter plugs significantly reducing the time of deflation
Air-LocŪ Vacuum Pump
Air-LocŪ Vacuum Pump Features:
- Honda or Briggs & Stratton engine; each is equipped with a low-oil shut-off mechanism 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)
Ventilator-Smoke Tester
Air-LocŪ Fan Assembly Features:
- For use as a line stringer, ventilator and smoke blower
- Made of lightweight, cast aluminum
- Foam base minimizes vibration
- 30" Diameter base plate
Equipped with:
- Honda or Briggs & Stratton engine
- Top-mounted handles for easy maneuverability
Line Stringer Usage Details:
- String 300ft section of sewer line under a minute without plugging it
- Will pull a lightweight nylon parachute through wet or dry lines
Ventilator Usage Details:
- Supports OSHA guidelines for confined space entry
- Provides up to 3,470 CFM as a suction ventilator
- Out-performs similar competitive models by 40% at 3" of static pressure
Accessories & Specifications
