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Uw0@KXKPPC9W/0-h#vb!U)bLY~. 0000012489 00000 n 553549A AutoFill Automatic Boiler Fill Valve, Pressure Indicator, 1/2-Inch Sweat Inlet by 1/2-Inch xref We get calls about selecting, applying and setting differential pressure bypass valves (DPBVs). Please share your insights with fellow shoppers. To see the manufacturer's warranty statement, click on the Manuals tab. The required minimum monthly payments may or may not pay off the promo purchase by the end of the promo period. The 519 Series will open to start bypassing flow when differential pressure reaches the adjustment setting. 0000065487 00000 n 0000001854 00000 n The Caleffi Differential Pressure By-pass Valve is used in systems with a fixed speed circulating pump supplying several zones controlled by two way zone valves. How warm does a coat keep you without gloves and a hat? 0000001336 00000 n %%EOF Fire boiler and pump(s). 0000002726 00000 n hYr6}}lc_|L'37Ln:M kT({/@I$MIh`@^s$f aa,/5HOKc1%$x}e1UD8`T$"bFX43QE1O">(])K~g8Y/NO8]0>aur0Jw8pqq&W.W+j$ 7.Ni5vp.3Im. As soon as flow begins through by-pass, you will feel the heat instantly. Minimum interest charge is $2. 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