Type A

Q_max=1250m³/h – H_max=50m

APPLICATION

The A pumps are universal, general purpose pumps designed to handle different fluids such as clean, cold water, hot water, contaminated water and chemicals. They are applicable in many industries including, for example, water supply, power industry, steel works etc.

DESIGN

Single stage, horizontal, end suction pumps with own bearings, closed impellers and spiral casings. The pumps are of back-pull out design, so they can be disassembled without disconnecting from the pipelines after removing the distant coupling. Mechanical seals of different types can be applied depending on the fluid pumped. The bearings are roller type, oil lubricated.

MATERIALS OF CONSTRUCTION

A pumps are available in different material versions including cast iron, cast steel and stainless cast steel. The materials of construction are selected individually for each application according to the kind of fluid.

No.	Part name	No.	Part name
1	Casing	10	Impeller nut
2	Shaft seal	11	Impeller
3	Bearing casing adapter	12	Stuffing box guard
4	Labyrinth seal	13	Toothed washer
5	Bearing	14	Bearing nut
6	Vent plug	15	Support
7	Bearing casing	16	Bearing cap
8	Bearing	17	Labyrinth seal
9	Shaft

Pump type	Dimension [mm]
Pump type	L	a	W	H	h	Ds	Dt
3A13	465	80	190	252	112	50	32
3A16	465	80	240	292	132	50	32
3A20	465	80	240	340	160	50	32
5A13	465	80	210	252	112	65	50
5A16	465	80	240	292	132	65	50
5A20A	485	100	265	360	160	80	50
5A25	625	125	320	405	180	80	50
6A16	485	100	265	340	160	80	65
6A20	600	100	320	405	180	100	65
6A25A	625	125	360	450	200	100	65
8A16	600	100	280	360	160	100	80
8A20	625	125	345	430	180	125	80
8A25A	625	125	400	505	225	125	80
10A20	625	125	360	480	200	125	100
10A25A	670	140	400	505	225	125	100
12A25	670	140	400	605	250	150	125
12A32A	670	140	500	635	280	150	125
15A25	690	160	500	655	280	200	150
15A32A	830	160	550	715	315	200	150
15A40	830	160	550	765	315	200	150
20A25	850	180	550	780	355	200	200
20A32	870	200	550	805	355	250	200
20A40	870	200	550	855	355	250	200
20A50A	970	200	660	985	425	250	200
25A32	920	250	660	960	400	300	250
25A40	970	200	800	1025	425	300	250
25A50	970	200	800	1145	475	250	250
30A40	1020	250	800	1105	475	350	300

Pump type	Rotation speed n=1450 [rpm]			Rotation speed n=2900 [rpm]			Weight m [kg]
Pump type	Capacity Q [m/h]	Head H [m]	Motor rated power P_s [kW]	Capacity Q [m/h]	Head H [m]	Motor rated power P_s [kW]	Weight m [kg]
3A13	6,3	5	0,75	12,5	20	3	47
3A16		8	1,5	12,5	32	5,5	45
3A20		12,5	3,0	12,5	50	7,5	55
5A13	12,5	5	2,2	25	20	7,5	49
5A16	12,5	8	3,0	25	32	15	56
5A20A	25	12,5	5,5	50	50	22	66
5A25	25	20	11	50	80	45	96
6A16	25	8	4	50	32	18,5	72
6A20	50	12,5	7,5	100	50	45	81
6A25A	50	20	15	100	80	75	114
8A16	50	8	4	100	32	30	80
8A20	80	12,5	11	160	50	55	103
8A25A	80	20	18,5	160	80	90	130
10A20	125	12,5	15	250	50	90	100
10A25A	125	20	30	250	80	132	148
12A25	200	20	37	400	80	200	152
12A32A	200	32	55	400	128	250	175
15A25	315	20	45	–	–	–	180
15A32A		32	75	–	–	–	292
15A40		50	90	–	–	–	322
20A25	500	16	55	–	–	–	256
20A32		32	110	–	–	–	335
20A40		50	160	–	–	–	380
20A50A		80	250	–	–	–	480
25A32	800	32	132	–	–	–	350
25A40		50	250	–	–	–	458
25A50		80	355	–	–	–	524
30A40	1250	50	315	–	–	–	560

The parameters are specified for clean water of density ρ=1000 kg/m3 and temperature T=15°C