Designed for residential, commercial or industrial use with water or a glycol mixture. This approved Webstone valve is actuated by a blowout proof stem and features an adjustable packing gland. Flange features a conical inlet to minimize turbulence. Solder joint temperature ratings are per ASME B16. 18 Annex A for 95-5 solder. Other solder materials have lower pressure/temperature limits. Do not silver braze or over heat valves when soldering.