Vacuum Testers

The Lansas

Vacuum Pumps are available with either a Honda or a Briggs & Stratton engine. These industrial class engines have high capacity fuel tanks and are equipped with low oil shut off which prevents engine failure due to insufficient lubrication.

We use a Gast Vacuum Pump which is capable of pulling up to 40 CFM at 00" Hg and 17 CFM at 15" Hg. This is a lubricated pump designed to reduce maintenance requirements under harsh job site conditions. A 2 H.P. electric motor or 5 H.P. Honda engine is available.

The new LANSAS

Super-Vac™ vacuum generator is a lower cost alternative for manhole vacuum testing. The Super-Vac™ will pull over 40 CFM @ 10 Hg of vacuum delivering more than 50% more volume than others on the market. Our design is virtually maintenance free with absolutely no moving parts.

A vacuum test of precast manholes should be performed to determine its resistance to the infiltration of water. The amount of vacuum lost over a specified time period will determine if the manhole is to be accepted. This test allows for greater control regarding the integrity of manholes. Vacuum testing is significantly faster and cheaper to perform than water testing.

Component Specification: Pneumatic Disc Assembly

The 24" disc assembly is manufactured of a cast aluminum disc with a lower flange for bladder retention. The one-piece cast unit has no seams to insure leak-free integrity. The disc assembly includes one 1/4" NPT (F) Gauge port and one 3/4" NPT (F) Vacuum port. The 24" and 30" test heads are equipped with the Lansas� View Port™ polycarbonate window which allows the user to see into the manhole during testing.

A Disc Support is provided as a means of positioning the disc at different levels in the manhole chimney. A removable 3/4" "all thread" rod is mounted to the disc. The rod extends up through the disc support and is attached using a wing nut. The bladder is manufactured by using a combination of natural rubber and nylon tire cord. The natural rubber will provide, through a textured finish, a positive seal on manhole surface irregularities. The nylon tire cord will add the necessary strength to ensure years of trouble-free usage.

Component Specification: Flat Plate Assembly

The flat plate assembly consists of either a 38" or 44" diameter aluminum casting designed to withstand continuous use at 15" Hg. It contains a 3/4" NPT (F) vacuum port as well as a 1/4" NPT (F) gauge port. A 3/4" thick closed cell foam pad is bonded to the plate to provide a positive leak proof seal. The 38" and 44" flat plates also include the same View Port™ window for viewing the inside of the manhole while testing.

PART NO.	Item Description	PART NO.	Item Description
* 100-24 * 100-30	24" Pneumatic Disc Assembly Complete 30" Pneumatic Disc Assembly Complete	* 100-38 * 100-44	38" Flat Plate Assembly Complete 44" Flat Plate Assembly Complete
Components
110-24 110-30 110-38	24" Pneumatic Disc Assembly 20.0"-24.3" 30" Pneumatic Disc Assembly 25.0"-30.3" 38" Flat Plate Assembly 14.0"-34.0"	125-30 131-30 110-24B	3/4" - 30' Vacuum Hose 0-30 Hg Gauge - Liquid Filled Repacement Bladder - 24" Test Head
110-44 120-00-0 121-00-H	44" Flat Plate Assembly 14.0"-40.0" Vacuum Pump w/ Briggs & Stratton Engine Vacuum Pump w/ Honda Engine	110-30B 110-38F 110-44F	Repacement Bladder - 30" Test Head Foam Pad & glue for 38" Flat Plate Foam Pad & glue for 44" Flat Plate
123-00 123-05	Air N Vac Vacuum Generator Air N Vac 2 Super Vac Generator