Glandless centrifugal multi-stage pumps

Pumps of the following type are intended for usage mainly in technological and transport systems for feed supply, transport and distribution of petroleum refinery products, gas condensate, liquefied hydrogen gases, petrol etc.

Types and the main specifications of the pumps are given in table 1 and their graphical specifications on Fig. 2.

Pumps, as a rule, are produced with remote electric motor intermediate bearing assembly of leading magnetic clutch drive (version Б). Pump rotor is discharged of axial forces and rotates in the plain bearings lubricated by the pumped environment (Fig. 1).

Fig. 1. Glandless centrifugal pump ANSGM10-100

Table 1. Glandless centrifugal multi-stage pumps specification

Parameter	ANSGM10 -100	ANSGM12,5 -150	ANSGM20 -220	ANSGM32 -110	ANSGM32 -155
Feed, m3/h	10,0	12,5	20,0	32,0	32,0
Pressure, m	100,0	150,0	220,0	110,0	155,0
Motor output, kW	15,0	22,0	37,0	15,0	18,5
Temperature of pumped medium, ºС	from -40 to +250	from -40 to +250	from -40 to +250	from -40 to +250	from -40 to +250
Circuit pressure, kgf/cm2	16,0	25,0	40,0	25,0	25,0
Rotational speed, rev/min	3000	3000	3000	3000	3000
Mains voltage, V	380	380	380	380	380

Fig. 2. Glandless centrifugal multi-stage pumps graphical specifications.