Taco Inc 110-254SF-1 Flange Stainless Steel FNPT 1 1/2in PK2

Stainless-Steel FNPT Flange 1 1/2 in PK2

This two-pack supplies standard flanges with female NPT threads for 1 1/2 inch pipe connections. Each piece is built from stainless steel for corrosion resistance in potable-water systems. The flanges match Taco Series 110 and 2400 circulating pumps and accept 0.25 inch bolt holes. Installers gain a direct, leak-tight joint without adapters.

Plumbers and Hydronic Installers

The flanges suit contractors assembling or servicing in-line circulating pumps in residential and light-commercial hydronic loops. They are not for technicians needing flanged connections on larger pipe diameters or on pumps outside the listed Taco model range. Buyers requiring welded or grooved-end flanges should select a different style. Systems using non-potable fluids with aggressive chemistry may need alternative materials.

Sustained Pressure and Thermal Cycling

Stainless construction maintains seal integrity through repeated heating and cooling cycles typical of circulating-pump operation. The two-bolt pattern distributes clamping force evenly, reducing the risk of flange distortion under continuous system pressure. Thread engagement remains stable over long service intervals, minimising weep paths. The material resists scaling and pitting that can degrade joint reliability in constant-flow potable installations.