Horizontal cooling-tower pump
WLTS65-5A/1.1
WLTS (horizontal, extended shaft) · 60 Hz
WLTS65-5A/1.1 is a horizontal cooling-tower pump from the CNP WLTS (horizontal, extended shaft) range (60 Hz). Rated 1.1 kW, 35–50 m³/h, head 3–6 m. Net weight 35 kg.
- Large flow, low head: 30–300 m³/h, up to 9 m
- Liquid temperature -15 to +100 °C, working pressure up to 6 bar
- Back-pull-out structure with motor fixed on a base for easy installation and service
Performance curve Curve-based
Efficiency, shaft power and NPSHr are not published for this model in the source catalogue.
Head versus flow at 60 Hz, 3450 rpm, clean water. Source: Performance table and installation dimensions, printed pp. 15–16.
| Flow (m³/h) | Head (m) |
|---|---|
| 35 | 5.8 |
| 40 | 5 |
| 45 | 4.4 |
| 50 | 3.4 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| L1 | overall length | 460 mm |
| L2 | base length | 278 mm |
| L3 | L3 | 100 mm |
| L4 | L4 | 85 mm |
| L5 | L5 | 100 mm |
| L6 | L6 | 95 mm |
| L7 | L7 | 278 mm |
| L8 | L8 | 185 mm |
| L9 | L9 | 215 mm |
| H | overall height | 240 mm |
| H1 | H1 | 120 mm |
| R | R | 5 mm |
| D1 | flange bore DN | 65 mm |
| D2 | bolt circle | 145 mm |
| D3 | flange outer diameter | 185 mm |
| n | flange bolt holes | 4 |
| a | bolt-hole spacing angle (°) | 45 mm |
| d1 | bolt-hole diameter | 18 mm |
| — | Net weight | 35 kg |