3/4" NPT Pump Isolation Valves (pair)
Pair of 3/4" NPT Grundfos Isolation Valves.
For heating applications only.
Installed a set of these with a Grunfos circulating pump last week and all was straight forward and assembled easily. I tested the shut off valves without the pump and they stayed tight and dry. Seem to be thick and well made I would use them again.
Will the flanges swivel or are they fixed in position relative to the cut off valves? Also, do any of the flanges use the O rings rather than the gaskets?
Read 1 answer
These flanges are swivel type, meaning the valve can be rotated to accommodate the installation. Since pumps have a groove in their flange for the rubber O-rings, these (rings) can be used instead of gaskets. In other words, both would work.
Answered on 2/12/2016 by PexUniverse Customer Service