sprinkler valve การใช้

• The pressure release valve is often one of a variety of commercially available types such as a plumbing ball valve, an irrigation sprinkler valve or a quick exhaust valve.
• Earlier, 16-year-old Kendall Knight ( Kendall Schmidt ) had suggested that they pull a prank on the girls'hockey team : turn on the sprinkler valve to spray them all.
• For example, a popular 3 / 4 " 150 psi sprinkler valve, intended for 24 VAC ( 50-60 Hz ) residential systems, has a momentary inrush of 7.2 VA, and a holding power requirement of 4.6 VA . Comparatively, an industrial 1 / 2 " 10000 psi valve, intended for 12, 24, or 120 VAC systems in high pressure fluid and cryogenic applications, has an inrush of 300 VA and a holding power of 22 VA . Neither valve lists a minimum pressure required to remain closed in the un-powered state.