Established in 1971, A-LOK Products, Inc. has been supplying quality products as a means to success for over 50 years.
Our Quality Management System is certified under ISO 9001:2015.
Foaming Hammer is the safest and most aggressive concrete cleaner on the market.
Future ShowsThe NPCA Annual Convention in Tucson, AZ from September 26-28, 2024.
Weftec in New Orleans, LA from October 7-9, 2024.
The NPCA Precast Show in Denver, CO from February 8-10, 2024.
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Who Said There's No Such Thing as a Free Lunch? Learn About Stormwater Connectors While You Eat On Our Dime.
Rock Valley Storm Sewer Job
A-LOK STM connectors were used for this watertight storm sewer job in Rock Valley, Iowa. The precaster showed the engineer pictures of two other STM box jobs he did in the past year. The engineer liked the idea and convinced the city to use them. Compression style watertight connections were made to accommodate the following sizes of pipes: 8” PVC, 15”, 18” 24”, 36” and 48” RCP. All were cast into square structures with sizes ranging from 2’x2’ to 6’x8’ inside. The city of Rock Valley now has written storm water specifications for watertight pipe penetrations in boxes using A-LOK STM connectors.
This was a stormwater job in Toledo, Ohio. Watertight connectors were chosen over grouting to speed up the installation. The interesting thing about this job was the 42" RCP had an OD of 51.25" which is the very biggest size suggested for the #1640 A-LOK Connectors cast into these manholes. However, the extra flexibility of the A-LOK Premium connector made the installation of the pipe very quick, requiring minimum force.
A-2000 PipeThis manhole was installed in Payne, Ohio. The picture shows a 36'' A-2000 pipe, with a smooth over sleeve, in position over the top of the pipe corrugations. It's held in place by a piece of 3/4'' plywood that fits down in the corrugation. This keeps the smooth oversleeve from moving during installation of the pipe into the #1310, A-LOK Premium Connector. The oversleeve is lubed, the pipe is centered in the connector and was pushed home.
During the late 1980’s in Bar Harbor, New Jersey there was a real problem with Hydrogen-Sulfide gas when the unlined manholes they installed a few years early needed to be replaced. They tried fiberglass manholes which lasted less than 2 years. The local municipality, Long Beach Island, then installed sixteen of our Dura-Plate 100 Liners for the manholes. Below is a picture of the manhole with our liner still protecting the manholes over 20 years later.