On containers filled with water, these airlocks create a liquid seal that keeps contaminants out while letting gases produced by chemical reactions and temperature changes escape. They’re common in fermentation applications, such as beer brewing and winemaking.

Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves meet NSF/ANSI Standard 61, which means they’re safe to use with drinking water systems.

For use in drinking water systems, these valves meet NSF/ANSI 61.

These valves meet NSF/ANSI 61 for use in drinking water lines.

For a lightweight and economical alternative to metal, these valves are made of plastic. Insert tubing into the fittings—no heat, solder, or flux required. All meet NSF/ANSI 61 for use in drinking water systems.

Solder these valves to metal tubing for a permanent, leak-tight connection. They meet NSF/ANSI 61 for use with drinking water.

These valves have NPT connections for use with threaded pipe.

Use air pressure to automatically control the flow of liquids in sanitary environments, such as food and beverage processing plants.

These valves have threaded NPT connections.

These valves meet NSF/ANSI 61 for use with drinking water. They bolt to flanges to adjust and regulate flow in flanged pipelines.

A plastic body withstands pH neutralizing, cleaning, and plating solutions containing sodium hydroxide, methyl ethyl ketone, and other harsh chemicals.

Integral shutoff valves isolate flow for inline maintenance, and a top-entry cover provides easy access to internal components.