GRUNDFOS BOILER FEED
Stainless Steel Bypass Orifices for Continuous Feed Boilers
Grundfos stainless steel bypass orifices that keep the minimum flow through a CR boiler feed pump on a continuous feed boiler: 1/16 to 1 in orifices, 1/2 in, 3/4 in, 1 in and 1 1/2 in threads.
CR, CRI, CRN 1s to 95
1/16 to 1 in Orifice
Stainless Steel
1/2 in, 3/4 in, 1 in or 1 1/2 in Thread
Sized by Pump, Stages and Temperature
Overview
On a continuous feed boiler the feed pump runs against a closed valve part of the time. A bypass orifice returns a fixed flow to the feed tank so the pump never drops below its minimum flow. Grundfos sizes the orifice by pump model, number of stages and liquid temperature; the minimum flow, the recommended bypass line and the orifice are all in the Grundfos price list table.
What Ships and What It Needs to Run
Included: one stainless steel bypass orifice of the size and thread in the selected option (Grundfos price list).
Threads: the 1/2 in tap version has G 1/2 and 1/2 in NPT threads; the 3/4 in NPT tap version has 3/4 in NPT on both sides; orifices 9/16 to 3/4 in have 1 in NPT threads and 13/16 to 1 in have 1 1/2 in NPT threads (Grundfos price list).
Genuine Grundfos equipment, factory-new in original packaging sold and supported by Watermain Supply, an independent industrial supplier.
Warranty: 24 months from date of installation, but not more than 30 months from date of manufacture (Grundfos limited warranty). Grundfos repairs or replaces its own product; costs of removal, installation and transportation are not covered, and products sold but not manufactured by Grundfos carry their own manufacturers warranty.
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