3/4" FNPT x Union FNPT Dual Check Backflow Preventer
Honeywell BP700 Dual Check Backflow Preventer features 3/4" NPT connections and may be installed in either a vertical or horizontal position and should be installed immediately down stream of the water meter.
Specifications of Honeywell BP700:
3/4" FNPT x Union FNPT Dual Check Backflow Preventer has an average 5 rating out of based on 2 user reviews.
"I would buy this product again
Great price, product as describe, fast shipping
Prevents contamination of water supply.
Used in supply line to water power-powered emergencey sump pump to prevent back up. It also doubles as a Union.
What is the pressure in PSI required to open check valve; i.e. how many feet of head will it add to my system?
Read 1 answer
Honeywell does not specify this information, however, the pressure drop is negligible since the internal springs have little tension.
Answered on 2/11/2013 by PexUniverse Customer Service