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 ...

The balancing valve was installed and set, and the differential pressure sensor was moved further away from the three-way control valve, and the system operation began regained stability. Conclusion.

Manufacturers, standard and code authorities expressly prohibit air testing of PVC pipe and fittings. Not only is air testing dangerous, it is also a bad test. Oct. 10, 2017 In this video from ...

Pipe fitting and valve maker China Lesso Group Holdings Ltd. has officially settled into a permanent home in the U.S., opening its Lesso America Inc. subsidiary in Corona, Calif., with 12 Haitian ...