Key features of these patent pending flow switches include:
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Common switching mechanism for both the FS251 and FS254
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Measured flow-rate sensing of 5.8 gpm in 1” pipe (2.2 fps) in horizontal pipe
installations, which is 18% lower than measured flow of comparable general purpose
flow switches from major competitors.
(Refer to submittal MM-627 for flow rates.)
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1-inch NPTM brass pipe connection
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1”, 2”, 3” and 6” Stainless steel paddles standard
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Section IV boiler ratings of 250º F and 160 psig
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No lead construction
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Housing materials:
- FS251 – stamped sheet steel base with glass reinforced
polycarbonate cover
- FS254 – Cast aluminum base and cover
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