Network pumps
Application: Pumps of СЭtype and pump units based on them of АСЭtype are designed for water pumping with temperature up to180° C in heat networks.
Design: network pumps СЭ – centrifugal, horizontal, spiral with casing horizontal joint, single- and double-stage with crossover pipes with double inlet impellers. Outboard rolling bearings with crankcase lubrication are rotor supports. Shaft seals – mechanical with gland packing with supply of cooling or sealing liquid (-C), interchangeable with mechanical end caps (-T).
Materials:
- casing, cover – castings from gray cast iron;
- impeller – casting from chrome steel 20Х13Л;
- groove seals parts – non-tearing corrosion resistant alloys;
- shaft – long steel from structural alloy steel 40Х.
Completeness of set:
- assembled pump with auxiliary piping within pump;
- counter-flanges on branch pipes;
- electric drive motor;
- connecting coupling of МУВП or МУП type with grating;
- protection grid;
- throttling device;
- lubrication unit (for pump units АПЭ 250 &АПЭ 270);
- overall or separate foundation frames (depending on pump typical size);
- fastening parts of pump, motor and coupling grating;
- set of spare parts.
Completeness of set shall be specified in purchase order.
Q-H PARAMETERS RANGE OF СЭ PUMPS:
| Designation | Pumps parameters | ||||||
| Supply, m3/h | Head, m | Rotational frequency, rpm | Power, kW(r=888 kg/m3) | Power, kW(r=1000 kg/m3) | Efficiency, % | NPSH, m | |
| Pump СЭ 500-70-16-С УХЛ4 | 500 | 70 | 3000 | 103 | 116 | 82 | 10 |
| PumpСЭ 500-70-16-Т УХЛ4Pump СЭ 800-55-11-С УХЛ4 | 800 | 55 | 1500 | 131 | 148 | 81 | 5.5 |
| PumpСЭ 800-55-11-Т УХЛ4Pump СЭ 800-100-11-С УХЛ4 | 800 | 100 | 1500 | 242 | 273 | 80 | 5.5 |
| PumpСЭ 800-100-11-Т УХЛ4PumpСЭ 1250-70-11-С УХЛ4 | 1250 | 70 | 1500 | 255 | 288 | 83 | 7.5 |
| PumpСЭ 1250-70-11-Т УХЛ4Pump СЭ 1250-140-11-С УХЛ4 | 1250 | 140 | 1500 | 510 | 575 | 83 | 7.5 |
| PumpСЭ 1250-140-11-Т УХЛ4 | |||||||
