The Model B-1 Upright and Pendent Foam-Water Sprinklers manufactured by Johnson Controls are air-aspirating foam discharge outlets designed for use in foam-water deluge systems. They are designed for flammable liquid risks where it is desired to apply foam from overhead sprinklers (either upright or pendent) and where follow-up with plain water in a standard spray sprinkler pattern is necessary. See NFPA 16, Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems, for more information.

The Model B-1 Sprinklers were also formerly available as Gem Issue B-1 and Star Model B-1.

Approvals

The Model B-1 Sprinklers are UL Listed. Discharge outlets and foam concentrates are listed for use together. Refer to the individual foam concentrate listing for operating limitations and compatibility with the B-1 Foam-Water Sprinklers as provided in the UL Online Certifications Directory.

The Model B-1 Sprinklers meet the requirements of MIL-S-901C for lightweight Grade A shockproof equipment, as well as the requirements of MIL-H-24146.