Horizontal canned pumps with welded bodies
Horizontal canned pumps with welded bodies (Villina-GNGC) are designed for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. These pumps are used in petrochemical, petroleum refining and other industries.
Main technical specifications
- Head: up to 600 m
- Pump rate: up to 220 m3/h
- Temperature of the pumped fluid: up to +420°С
- Seal type: magnetic coupling, tandem mechanical seal, combined seal
- Viscosity (depending on the seal type): for tandem mechanical seals and combined seals: up to 160 cSt; for magnetic couplings: up to 35 cSt
- Density 2,000 kg/m3 max, with a high concentration of particles
- Particle size over 0.2 mm, but not exceeding free passage of the impeller (3 to 12 mm depending on the pump rate)
Advantages of the welded design of the pumping unit
- single-stage or multi-stage version of the unit design (increased discharge pressure, in contrast to back pull-out pumps);
- high efficiency of the impellers;
- a possibility to pump contaminated liquids with 100% tightness (for pumping units with combined seals);
- Temperature of the pumped fluid: up to +420°С.