AGF Manufacturing announced the PURGENVENT Air Venting Valves designed to remove excess air from sprinkler pipes for the new NFPA 13 venting requirements. Malvern, PA – July, 2017 – AGF Manufacturing ...
Modern air admittance valves are designed to protect trap seals and maintain proper drainage—but understanding exactly what they do and how to install them correctly is key. An installed AAV under a ...
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