Grundfos Grundfos TP / TPD
Grundfos single-stage in-line pumps, single (TP) or twin (TPD), for heating, air conditioning, water supply and industrial processes.
TP is the Grundfos range of single-stage in-line centrifugal pumps, with suction and discharge ports on the same axis and of the same diameter, driven by a fan-cooled asynchronous motor connected to the pump shaft through a rigid coupling. TPD is the twin variant: two motor-pump units in parallel and a flap in the common discharge, which prevents the liquid from flowing back through the stopped unit. The range has three construction groups: Series 100 (union or flange connection, Rp 1–Rp 1¼, motors of 0.12–0.25 kW), Series 200 (DN 32–DN 100 flange, 0.12–2.2 kW) and Series 300 (DN 32–DN 350 flange in the 16 bar design or DN 100–DN 400 in the 25 bar design, with motors up to 630 kW).
The code has the form TP 40-240/2: 40 is the nominal diameter of the connections, 240 is the maximum head in decimetres, and /2 is the number of motor poles; the letter D (TPD) indicates the twin pump, and the letter E (TPE) the pump with electronically controlled speed. For example, TP 40-240/2 has a 2.2 kW motor. For a quotation we need the full code from the nameplate, the supply voltage, the nominal pressure and the pumped liquid. When the item is available locally or at the supplier, delivery takes 24–72 h, and on order usually 1–4 weeks.
Models and codes
| Code | Note |
|---|---|
| TP 25-80/2 | DN 25 connections, 2-pole motor, 0.18 kW. |
| TP 32-120/2 | DN 32 connections, 2-pole motor, 0.37 kW; also available as TPD. |
| TP 40-240/2 | DN 40 connections, 2-pole motor, 2.2 kW. |
| TPD 40-240/2 | Twin variant of the TP 40-240/2 pump. |
| TP 50-240/2 | DN 50 connections, 2-pole motor, 2.2 kW. |
| TP 40-60/4 | DN 40 connections, 4-pole motor, 0.25 kW. |
Key specifications
| Flow / head, Series 100 and 200 | up to 90 m³/h / up to 27 m |
|---|---|
| Flow / head, Series 300 | up to 2,000 m³/h / up to 93 m (16 bar); up to 4,500 m³/h / up to 140 m (25 bar) |
| Liquid temperature | Series 100: -25…+120 °C; Series 200: -25…+140 °C; Series 300: -25…+140 °C (16 bar, above +120 °C with a different mechanical seal) or -25…+150 °C (25 bar; between +120 and +150 °C the maximum working pressure drops below 23 bar) |
| Maximum operating pressure | Series 100 and 200: up to 16 bar; Series 300: 16 or 25 bar |
| Connections | Rp 1 (DN 25) – Rp 1¼ (DN 32) for Series 100; DN 32–DN 100 for Series 200; DN 32–DN 400 for Series 300 |
| Motor power | 0.12–630 kW |
| Construction | top-pull-out: the motor, pump head and impeller are removed without taking the casing out of the pipework; Series 300 has a replaceable wear ring |
| Pumped liquids | thin, clean, non-aggressive, non-flammable liquids, free of solid particles or fibres |
The Grundfos data booklet for TPE3, TPE2, TPE Series 2000/1000, TP and TPD, 50 Hz, is the 04.2025 edition, with no withdrawal notice.
Frequently asked questions
What does the code TP 40-240/2 mean?
TP is the range, 40 is the nominal diameter of the connections, 240 is the maximum head in decimetres, and /2 is the number of motor poles. TPD 40-240/2 is the same size in the twin variant.
What is the difference between TP and TPD?
TP has a single motor-pump unit. TPD has two, mounted in parallel in the same casing, with a flap in the common discharge that opens under the pressure of the liquid and prevents it from flowing back through the stopped unit.
What data do you need for a quotation for a TP pump?
The code from the nameplate (for example TP 40-240/2), the supply voltage, the nominal pressure and the pumped liquid, especially if it is not water. If the nameplate is missing, the flow, the head and the diameter of the connections help us.
Other Grundfos series
We do not carry out hydraulic selection on the pump curve and we do not install the pump; we quote the TP or TPD variant by code and by the nameplate data.
Updated: 2026-11-12