Description
The Pentax DTRT 300 400v (code 020-658) is the largest of the threaded-outlet DTR grinder pumps, with a 2.2 kW (3 HP) three-phase motor drawing 5.8 A at 400v. Through its 2″ G outlet it reaches a maximum head of 26.1 metres, with 23.3 metres at 150 litres per minute and 18.2 metres at 300 litres per minute.
It gives the most head you can get from the compact 2″ body, so it is the natural step up from the DTRT 200 400v when a long rising main pushes the total head past 20 metres. Beyond that, the DTRT 400 400v moves to a larger body with a DN50 flanged outlet and 33.5 metres of head.
The pump body and impeller are cast iron with a cataphoresis paint finish, the grinder is treated stainless steel and the motor shaft is AISI 304 stainless steel. A double mechanical seal with an oil barrier (silicon carbide on the pump side, ceramic and graphite on the motor side) protects the two-pole motor, which has class F insulation and is rated for immersion to 20 metres. The pump stands on a galvanised foot support and comes with 10 metres of H07RN-F cable. There is no float switch, so the pump runs under a separate control panel or level control.
Run it from a three-phase motor starter or control panel with overload protection, which also gives you a way to add level control with float switches.
Features
- Open impeller with treated stainless steel grinder for suspended solids and fibres
- Maximum head 26.1 m; 23.3 m at 150 l/min; 18.2 m at 300 l/min
- 2.2 kW (3 HP) motor, 400v three phase, 5.8 A
- 2″ G threaded outlet
- Cast iron pump body and impeller
- Double mechanical seal with oil barrier
- 10 m H07RN-F cable
Applications
- Commercial and industrial sewage sumps with high or distant discharge points
- Rising mains serving several buildings on one site
- Civil and municipal sewage where suspended solids need shredding
- Livestock and agricultural waste water
For sewage and waste water with soft suspended solids and fibres, at liquid temperatures from 0 to 40 °C. Not for flammable liquids, oils, solvents or chemicals, and not for installations deeper than 20 metres. Ask us before using it on water carrying sand, gravel or other abrasive material.
The Pentax DTR and DTRT range
| Model | Supply | Motor (kW) | Current (A) | Outlet | Max Head (m) | Head at 150 l/min (m) | Head at 300 l/min (m) | Code |
|---|---|---|---|---|---|---|---|---|
| DTR 150 | 230v 1~ | 1.1 | 11.5 | 2″ G | 19.4 | 16.0 | 9.9 | 020-650 |
| DTR 200 | 230v 1~ | 1.5 | 13.6 | 2″ G | 22.1 | 19.1 | 13.4 | 020-652 |
| DTRT 150 | 400v 3~ | 1.1 | 4.4 | 2″ G | 19.4 | 16.0 | 9.9 | 020-654 |
| DTRT 200 | 400v 3~ | 1.5 | 5.1 | 2″ G | 22.1 | 19.1 | 13.4 | 020-656 |
| DTRT 300 | 400v 3~ | 2.2 | 5.8 | 2″ G | 26.1 | 23.3 | 18.2 | 020-658 |
| DTRT 400 | 400v 3~ | 3.0 | 7.5 | DN50 flange | 33.5 | 28.5 | 21.6 | 020-660 |
| DTRT 550 | 400v 3~ | 4.0 | 9.2 | DN50 flange | 38.6 | 33.9 | 27.6 | 020-662 |
| DTRT 750 | 400v 3~ | 5.5 | 13.9 | DN65 flange | 47.8 | 42.7 | 36.1 | 020-664 |
| DTRT 1000 | 400v 3~ | 7.5 | 15.5 | DN65 flange | 54.6 | 49.2 | 42.7 | 020-666 |
Head figures are from Pentax’s 50 Hz performance data. See the Pentax DTR high head sewage grinder pump range page for help choosing between models.
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