The Flexible Push-Type Packer is used to test & seal lateral lines from an above ground access or cleanout. The restricted expansion between the two end bulbs allows the grout to move freely in the void leaving only a thin layer of grout in the lateral once the operation is completed. It is pushed in place with a semi-rigid 5 hose assembly. An eyebolt is also provided to pull the packer for long runs or multiple bends.
When deflated the packer looks like a 2.75″ layflat hose.
The central rubber expansion is restricted to approximately 1/4″ smaller than the nominal pipe size.
Packers with 3’0” or 5’0” grout chamber for 4” or 6” pipes are available from stock. Custom-made packers could be made for other pipe sizes and other grout chamber lengths.
The packer comes with two chemical ports, one test port, one sensor diaphragm and 50 feet of semi-rigid hose assembly.
The preferred grout technique consists in pushing/pulling the packer to the far end of the lateral and bringing it back in 3 or 5 foot increments, the length of the grout chamber, towards the cleanout. The operator can work the packer in tandem with a mini camera and or mark the hoses.
|Flexible Push-Type Packers|
|Product #||For Pipe Size||Length of Grouting Chamber *||Inflation Pressure||Approx. volume of Grout Mixing Chamber|
* Custom lengths are also available.
Segmental testing of laterals is also possible with the Push-Type Test Rig.