Description
The Pentair Nocchi DHI 2-60T (code 422-1260) is a horizontal multistage centrifugal pump in AISI 316 stainless steel, for 400v three-phase supply. It delivers up to 60 litres per minute, with 53 metres of head at 10 l/min and 21 metres at 60 l/min, from a 0.60 kW motor drawing 1.8 A. Suction and delivery are 1¼”. The pump weighs 11.7 kg and is 396 mm long.
The 2-60 sits in the middle of the DHI 2 family, with roughly 50 metres of head at low flow. That is enough to lift water several floors and still leave usable pressure at the outlet, as long as demand stays within 60 l/min. The DHI 2-40T is the smaller choice for lower heads, and the DHI 2-70T adds between 5 and 10 metres across the curve. The DHI 2-60M is the 230v single-phase version.
The pump body, impellers and shaft are AISI 316 stainless steel, the motor housing is die-cast aluminium, and the mechanical seal is carbon on ceramic with EPDM gaskets. The 2-pole motor runs at 2850 rpm, is IP55 rated and has Class F insulation. Suction and delivery are both 1¼” threaded connections, set at 90 degrees to each other. The pump is supplied as a bare pump and motor, without a pressure switch, vessel or controller.
Features
- 0.60 kW motor, 396 mm long, 11.7 kg
- 53 m at 10 l/min, 37 m at 40 l/min, up to 60 l/min
- 400v three-phase motor, 1.8 A
- AISI 316 stainless steel pump body, impellers and shaft
- Rated for clean water up to 90°C
- IP55 motor with Class F insulation, 2850 rpm
- 1¼” suction and delivery at 90 degrees
Applications
- Booster sets for small multi-storey buildings
- Washing and cleaning systems needing high pressure at low flow
- Hot water and condensate transfer up to 90°C
Performance
| Flow (l/min) | 10 | 20 | 30 | 40 | 50 | 60 |
|---|---|---|---|---|---|---|
| Head (m) | 53 | 49 | 43 | 37 | 30 | 21 |
The DHI is for clean water without suspended solids or abrasive material, up to 90°C, with a maximum operating pressure of 6 bar at 90°C. It is not self-priming: fill the casing and suction pipe before starting, and never run it dry. On 400v three-phase it must be wired through an isolator with fuses and a thermal overload relay set to the motor’s running current, as Pentair’s manual requires. For drinking water boosting in the UK, draw from a break tank or cistern rather than connecting straight to the mains supply pipe without your water supplier’s consent.
The Nocchi DHI range
| Model | Supply | Motor output P2 (kW) | Current (A) | Head at 40 l/min (m) | Highest listed head (m) | Max flow (l/min) |
|---|---|---|---|---|---|---|
| DHI 2-40M | 230v single-phase | 0.40 | 3.2 | 27 | 36 | 60 |
| DHI 2-60M | 230v single-phase | 0.60 | 4.1 | 37 | 53 | 60 |
| DHI 2-70M | 230v single-phase | 0.78 | 5.2 | 44 | 63 | 60 |
| DHI 4-30M | 230v single-phase | 0.50 | 3.6 | 27 | 27 | 120 |
| DHI 4-40M | 230v single-phase | 0.70 | 4.4 | 35 | 35 | 120 |
| DHI 4-50M | 230v single-phase | 0.90 | 5.8 | 44 | 44 | 120 |
| DHI 2-40T | 400v three-phase | 0.40 | 1.4 | 27 | 36 | 60 |
| DHI 2-60T | 400v three-phase | 0.60 | 1.8 | 37 | 53 | 60 |
| DHI 2-70T | 400v three-phase | 0.78 | 1.8 | 44 | 63 | 60 |
| DHI 4-30T | 400v three-phase | 0.50 | 1.7 | 27 | 27 | 120 |
| DHI 4-40T | 400v three-phase | 0.70 | 2.0 | 35 | 35 | 120 |
| DHI 4-50T | 400v three-phase | 0.90 | 2.0 | 44 | 44 | 120 |
Figures are from Pentair’s DHI datasheet. See the Nocchi DHI multistage pump range page for help choosing between models and answers to common questions.
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