Type OS

Qmax=750m3/h – Hmax=305m

APPLICATION

The OS-AM, OS-B and OS-C pumps are designed to handle clean and slightly contaminated water containing solids of size up to 2mm. Density of the pumped liquid can be up to 1020 kg/m3 (1200 kg/m3 for salt resistant version).

OS-AM, OS-B and OS-C pumps marked with EX symbol can be used in potentially explosive atmospheres as a device group I category M2.

Typical applications include:

• deep mine dewatering
• open cast mine
• steel industry
• cement and lime plants
• power engineering

DESIGN

Stationary, multistage pumps with vane diffusers and closed impellers. The suction flange is located horizontally to the right of left while the delivery flange is located vertically upwards. Axial force absorbed by the bearings is reduced by holes or balancing vanes. Roller bearings do not require cooling. Mechanical seals or gland packings are applied for shaft sealing.

MATERIALS OF CONSTRUCTION

The materials of construction for the OS-AM, OS-B and OS-C pumps are selected accordingly to the handled fluid. There are three standard material versions:

basic – for water containing no contaminations
wear-resistant – for water containing solids
salt-resistant – for chemically contaminated water with solids presence.

Special material versions can be selected for handling non-typical fluids.

• Cross-section
• Dimensions
• Range of operations
• Nominal parameters

No.	Part name	No.	Part name	No.	Part name
1	Shaft	10	Discharge casing plate	19	Seal ring
2	Bearing cap	11	Lantern ring	20	Centrifugal guide
3	Bearing housing	12	Gland	21	Distance guide
4	Gland packing	13	Bearing housing	22	Sealing sleeve
5	Suction casing	14	Radial bearing	23	Supply guide
6	Tie bolt	15	Shaft nut	24	Shaft nut
7	Suction casing plate	16	Bearing chousing	25	Radial bearing
8	Stage housing	17	Shaft protecting sleeve	26	Arial bearing
9	Discharge casing	18	Impeller	27	Bearing cap

Dimension [mm]	Pump type		OS-80B		OS-100AM	OS-150AM	OS-200B	OS-250AM	OS-300C
			Make A	Make B
L	Number of stages	2	769	768	944	1101	1367	1414	1337
		3	837	836	1051	1225	1514	1568	1527
		4	905	904	1158	1349	1661	1722	1717
		5	973	972	1265	1473	1808	1876	1907
		6	1041	1040	1372	1597	1955	–	–
		7	1109	1108	–	–	–	–	–
		8	1177	1176	–	–	–	–	–
a	Number of stages	2	162		291,5	367	478,5	567	634
		3	230		398,5	491	625,5	721	824
		4	298		505,5	615	772,5	875	1014
		5	366		612,5	739	919,5	1029	1204
		6	434		719,5	863	1066,5	–	–
		7	502		–	–	–	–	–
		8	570		–	–	–	–	–

Pump type		OS-80B		OS-100AM	OS-150AM	OS-200B	OS-250AM	OS-300C
		Make A	Make B
Dimensions [mm]	W	407	407	630	708	818	925	1095
	k	240	240	335	380	450	500	600
	H	507	507	615	735	855	975	1150
	h	212	212	280	315	355	425	450
	Ds	80		125	200	250	300	350
	Dt	80		100	150	200	250	300

Pump type	Number of stages	Capacity Q [m3/h]	Head H [m]	Rotation speed n [rpm]	Shaft power P [kW]	Weight m [kg]
OS-80B	2	36	36	1450	5,6	185
	3		54		8,4	219
	4		72		11,2	253
	5		90		14	287
	6		108		16,8	321
	7		126		19,6	355
	8		144		22,4	389
OS-100AM	2	81	58	1450	19	319
	3		87		28,5	393
	4		116		38	467
	5		145		47,5	541
	6		174		57	615
OS-150AM	2	144	64	1450	35	473
	3		96		52,5	578
	4		128		70	683
	5		160		87,5	788
	6		192		105	893
OS-200B	2	258	72	1450	67	780
	3		108		100,5	926
	4		144		134	1070
	5		180		167,5	1215
	6		216		201	1356
OS-250AM	2	450	96	1450	153	1011
	3		144		229,5	1221
	4		192		306	1431
	5		240		382,5	1641
OS-300C	2	750	122	1490	355	1587
	3		183		560	1876
	4		244		710	2165
	5		305		900	2450

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