Circulator Pump Spares

Circulator pumps are a particular type of pump that can be used to circulate liquids and gases within a closed circuit. They are used commonly in hydronic heating and cooling systems. The power that is needed to move the liquid only has to overcome the internal friction of the pipework within which it moves, rather than moving between different levels.

Pipe flanges are the important parts that support small to medium-sized circular pumps. The Grundfos 1 ¼ inch BSPF PN10 Screwed Flange Set is suitable for use with the UPS32, UPE32, TP32, UPD32, UPED32 and TPD32 circulator pumps. The set consist of 2 ringed flanges, 2 ring gaskets and 8 nuts, washers and bolts.

The Grundfos 4 inch BSPF PN10/16 Screwed Flange Set is suitable for use with the TP (D0 100 circulator models. Each set consists of 2 flanges, 2 gaskets and 8 washers, nuts and bolts.

The Grundfos 3 inch BSPF PN10/16 Screwed Flange Set is suitable for use with TP (d) 80 circulator models. This set consist of 2 flanges, 2 gaskets and 8 nuts, washers and bolts

Terminal boxes usually fit above the pump itself and should remain dry. However water may come in from inside if the inner section becomes worn. Terminal boxes also fail at an electronic level. The Grundfos UPS, UPC and UMC replacement terminal boxes are suitable for all 415 V circulator pump models. Single phase pump terminal boxes have a green indicator light that shows if the electricity is switched on or off. The three phase pump terminal box has both red and green lights to indicate if the power supply is switched on or off. If both lights are showing this indicates that the direction of the pump's rotation is wrong.