ERICO LENTON INTERLOK Rebar Splicing System - Manual (Page 13)

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1.5 Locating Inlet/Outlet Tubes for Pump Filling Application
When the Placing Drawings specify a Pump Fill Application, inlet and outlet tubes are required to be installed. For the Pump
Fill Application, many options are available for locating the inlet/outlet tubes. In general, grout can be installed from any face
of the precast member and tube orientation can be to any of the walls of the panel.
In determining where to locate the tubes it is necessary to consider:
1) Ease of access to the tubes at the job site for grouting.
2) Location of the tubes with respect to the exterior facade of architectural panels.
3) The degree of bending of the tubes that may be required.
4) The length of the tubes. Maximum recommended is 3 feet (1 meter)
Examples of inlet/outlet tube configuration:
I. Restricted Access II. Unrestricted Access
Materials:
Only rigid schedule 40 PVC tubing is recommended for inlet and outlet tubes. ERICO recommends not using flexible tubing
as this may collapse or kink during casting of the precast member – preventing the coupler from being filled with grout at
the job site.
Shearwall Shearwall
Column Column
Inlet/Outlet Tubes
LENTON ® INTERLOK
Coupler & Rebar