Application
The PKC pump is designed for the pumping of return sludge or for internal recirculation of sludge in wastewater treatment plants. It can also be used to pump slightly polluted water into irrigation and drainage channels and wherever more water is required at low traffic altitude.
Specifications of the pumped liquid
- polluted water, sludge
- solid content: max. 15% of total weight
- particle size: soft lumpy particles up to max. ø50 mm, fibrous particles
- density: max. 1050 kg.m-3
- temperature: max. 40°C
- pH range: 6 – 11
Design
The pump is submersible, centrifugal, vertical with one axial impeller. It is designed as a monoblock, consisting of a submersible asynchronous electric motor, cooled by pumped liquid, and a hydraulic part, separated from the engine by an oil bath and a pair of mechanical seals. The oil filling is used to lubricate and cool the mechanical seal and prevent direct contact of the pumped liquid with the electric motor. There is a capacitive sensor in the oil bath that signals the penetration of water into the motor part of the pump.
The PKC-M submersible pump comes with a vertical submersible shaft (tube) made of stainless steel with one or two suction holes according to customer requirements and a funnel. The tube is equipped with brackets for anchoring.
The above components include lowering equipment with a hand winch made of common structural hot-dip galvanized steel, and it is equipped with a stainless-steel rope with a diameter of 5 mm and a length of 8 m with a rope clamp. The load capacity of the lowering equipment is 165 kg.
Material design
Body – grey cast iron
Shaft – carbon steel
Impeller – stainless steel
Tube – stainless steel
Funnel – stainless steel
Lowering device – structural steel
Hlavní technické parametry
| Čerpadlo | |||||
| Typ | PKC-M 2015 | PKC-M 2022 | PKC-M 2021 | PKC-M 2530 | PKC-M 2730 |
| Průtok čerpadla Q [l/s] | 10-66 | 35-89 | 73-104 | 66-150 | 112-204 |
| Dopravní výška čerpadla H [m] | 1,15-0,2 | 1,13-0,2 | 1,15-0,22 | 1,37-0,34 | 1,1-0,2 |
| Příkon čerpadla P [kW] | 1,5 | 2,2 | 2,2 | 3 | 3 |
| Otáčky čerpadla n [1/min] | 940 | 1440 | 1440 | 1440 | 1440 |
| Hmotnost čerpadla m [kg] | 85 | 85 | 85 | 95 | 95 |
| Průměr vrtule d [mm] | 200 | 200 | 200 | 255 | 275 |
| Vnitřní průměr vtok. kusu D [mm] | 204 | 204 | 204 | 259 | 279 |
| Maximální délka čerpadla l [mm] | 711 | 690 | 711 | 711 | 711 |
| Maximální šířka čerpadla a [mm] | 397 | 397 | 397 | 397 | 397 |
| Elektromotor | |||||
| Otáčky motoru nm [1/min] | 940 | 1440 | 1440 | 1440 | 1440 |
| Jmenovitý proud I [A] | 3,75 | 5,5 | 5,5 | 7,5 | 7,5 |
| Jmenovité napětí U [V] | 3×400 | 3×400 | 3×400 | 3×400 | 3×400 |
| Jmenovitý kmitočet f [Hz] | 50 | 50 | 50 | 50 | 50 |
| Příkon motoru Pm [kW] | 1,5 | 2,2 | 2,2 | 3 | 3 |
| Maximální dovolený proud Imax [A] | 10,5 |
Q-H charakteristiky čerpadel:
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