The A●LOK® Premium™ is a flexible compression connector designed to be integrated into a watertight wastewater system based on ASTM C-923.  When used with all types of concentric smooth wall pipe, the A•LOK® Premium™ will provide a guaranteed watertight seal between the pipe and the wall of a concrete structure.   Its unique design not only provides maximum performance but saves valuable project time, extends the longevity of the structures and reduces the projects overall environmental impact.

A•LOK® Premium™ connectors prevent infiltration and ex-filtration about the pipe interface in wastewater or stormwater systems. They are installed in the structure in a way that does not require coring or placement as a secondary operation.   This eliminates residual waste from coring, the disposal of the slugs, inefficient raw material utilization and excess energy use. Once cast-in, the connector becomes an integral component of the structure’s wall.

A•LOK® Premium™ Connector making a watertight connection

with Smooth Wall Concrete Pipe

A•LOK® Premium™ has successfully been tested to ASTM C-923 deflection requirements.

ADVANTAGES

• Functioning on pure compression, the A•LOK® Premium™ allows for fast and easy field installation.   After the pipe is beveled and the connector and pipe are cleaned and lubricated, the pipe is simply centered in the connector and inserted. Backfilling can be done immediately, thus enhancing project safety and overcoming the typical problems of water, running sand and other unstable trench conditions.
• Efficient geometry of the profile lowers the coupling force required to insert the pipe into both radius and flat wall connector designs. Lower coupling force translates into quicker and easier installation.
• Increased nominal pipe diameter tolerance over conventional compression connector designs while still maintaining up to 10 degrees of omnidirectional axial deflection.
• Connector can meet deflection requirements of ASTM C-923 without loss of seal or compression. Dynamic self-sealing core material can compensate for changes in dimensions and physical eccentricity.
• Available in a range of sizes from 8” through 48” utilizing existing A•LOK® mandrels.
• Backed by standard A•LOK® Watertight Guarantee.
• Like other A•LOK® connectors on larger-diameter pipe where size prohibits a gasket from being installed in a flat plane, the A•LOK® Premium can be configured for casting in a curve with the connector staying perpendicular to the center line of the pipe. Discovered through years of extensive research and development, this configuration causes no loss of compression or deflection.