PTA-3750 & PTA-3800 Horizontal, Centrifugal
Boiler feed pumps
horizontal, centrifugal, with plain bearings and shaft sealing by means of mechanical seals (in case of PEA 250-80-3: horizontal, ring-section, centrifugal, with oil-bath lubricated plain bearings and shaft sealing by means of single mechanical seals; axial thrust compensation by balance disc; flanged nozzles).
| Pump make | Equipment applications | Technical data | Safety class / Seismic stability category / Climatic version | ||||
|---|---|---|---|---|---|---|---|
| Capacity, m3/h | Head, m | Type of drive & its parameters | |||||
| PTA 3750-75-2 | Designed as a boiler feed pump to deliver de-aerated water from gas-extractors (degasers) to steam generators in NPS power units equipped with a VVER-1000 PWR and turbine K-1000-60/3000-2 | 3400 | 635 | Turbine n=3114 rpm P nom.=6285 kW | 3 / IIб / ТB3 | ||
| PTA 3750-75-3 | Designed as a boiler feed pump to deliver de-aerated water from gas-extractors (degasers) to steam generators in NPS power units equipped with a VVER-1000 PWR and turbine K-12-1,0 ПА-1 or ОК-12А for Rostov NPP and К-10-0,5 ПА-1 in case of Kalinin NPP | 3750 | 860 | Turbine n=3409 rpm P nom.=9603 kW | 3 / II / УХЛ4 | ||
| PTA 3800-20-2 | Used as a boiler feed booster pumps to deliver feed water from the de-aerator (gas extractor) to PTA 3750-75-2 and PTA 3750-75-3 BFPs respectively for providing a greater available NPSH to the main pumps for their cavitation-free operation | 3450 | 134 | Turbine n=1602 rpm P nom.=1280 kW | 3 / IIб / ТB3 | ||
| PTA 3800-20-3 | 3800 | 160 | Turbine n=1753 rpm P nom.=1680 kW | II /УХЛ4 | |||
