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Taco 255-2 flanges not compatible with 0015E circulators?
Picked up some sets of 255 flanges (supposedly compatible with all 00 series circulators) but I don't see how they will work? Taco wants their o'rings used with the 0015E, but they do not provide any viable seal when used with the 255-2 flanges? same for the flat washers that are supplied with the 255-2 flanges. They do not mate with any flat surface areas to provide what appears to be a decent seal? Are the 0015E circulators different from the earlier legacy 00 series?
Pete
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Comments
You should be using something like this type of gasket.
A full face gasket is your best option.
Are the Taco instructions in error? I have contacted Taco and I am awaiting a response due to the confusion.
The ID of our gasket area is larger than the OD of the companion flange surface, so there’s not enough surface area to seal against. During my 15 + years in Tech support I have seen the o-ring and flat gasket used to seal the flange but its never a good idea to mate two compressible gaskets together; chances of leaks are fairly high. Do not recommend
Taco currently offers the new SFL series shut-off flanges which has a larger OD sealing surface that mates to our casing flange much better. I recommend using these as opposed to 255 flanges.
Hopefully this was helpful, and if you have any questions or concerns please reach out to Taco tech support directly at 401-942-8000. You can always call me too!!
N. E. Regional Manger, Commercial Products
Taco Comfort Solutions
The swivel is nice on iso-valves so you can move the handle to the best position depending on the circulator and it's position.
trainer for Caleffi NA
The magic is in hydronics, and hydronics is in me
You can call me to discuss further. 401-261-4890.
N. E. Regional Manger, Commercial Products
Taco Comfort Solutions