Weil McLain 511-405-133 Cartridge Circulator

The Weil McLain 511-405-133 Cartridge Circulator is a Taco 0014-F1-3 wet-rotor cartridge circulator supplied without flanges. The cast volute has the flange ports, but the companion flanges are not part of the pump, which makes it a practical choice when the flanges on your existing piping are staying put or you already have a matching pair on the shelf. The pump is rated 1/8 HP, runs on 115 V, 60 Hz power, draws 1.45 A and turns at 3250 RPM. If you are searching by the Taco number 0014-F1-3 or the Weil McLain number 511-405-133, this is the pump behind both.

The nameplate on the 0014-F1-3 reads 150 PSI maximum pressure and 230°F (110°C) maximum water temperature. Next to the 511-405-113 (the Taco 007-F5, rated 1/25 HP and 125 PSI), this is the heavier motor with the higher pressure rating, so do not swap one for the other by guesswork. Compare the label on the pump you are replacing with the numbers here. This is a wet-rotor design: the rotor and bearings run in the system water, which lubricates and cools them. There is no shaft seal to leak, but the pump must never run dry, so purge the loop of air before you call the job done.

Plan the installation around the missing flanges. The pump is pictured with two flange gaskets, and you will need a pair of flanges that match your piping to bolt it in. Use fresh gaskets instead of reusing old ones, make sure the flange faces are clean and flat, and tighten the bolts evenly in a cross pattern so the volute seals without being pulled out of square. Wet-rotor circulators are normally mounted with the motor shaft horizontal, so check the orientation before you pipe it in and make sure the pump is set up for the direction of flow.

Key Benefits

• Supplied Without Flanges: Order the circulator by itself and reuse or match your own flanges, instead of buying a flange set you do not need.
• 1/8 HP Wet-Rotor Motor: 1.45 A at 115 V with the rotor and bearings lubricated and cooled by the system water.
• 150 PSI, 230°F Ratings: Printed on the nameplate, with more pressure headroom than the 125 PSI rating of the 511-405-113.
• Factory Service Number: 511-405-133 is the Weil McLain number for the Taco 0014-F1-3, so the number you search is the number you order.

Common Questions

• What Taco model is the 511-405-133? It is the Taco 0014-F1-3 cartridge circulator. The label on the pump reads CARTRIDGE CIRCULATOR 0014-F1-3.
• Does this circulator include flanges? No. It is supplied without flanges, and the pump is pictured with two flange gaskets. Have a matching pair of flanges ready before you start the job.
• How do I know this is the right circulator for my boiler? Read the nameplate on the pump you are replacing. If it shows 0014-F1-3, 1/8 HP, 115 V and 3250 RPM, you are looking at the same pump. Send us your boiler model and we will confirm the match before you buy.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.