Pumps dual-supporting radial НДР (NDR)

These centrifugal horizontal dual-supporting Pumps with 1 or 2 Impellers in radially-splitting Pump Housings are intended FOR EXTRA-HEAVY DUTIES as well, as for CAVITATION-FREE OPERATION at lower Pump INlet Pressures.

Design of the Pump Family NDR FULLY corresponds to the requirements of API 610 Type BB2.

Family of the НДР (NDR) Pumps

Technologic Specifications 3631-100-00217969-2016

№	Electric Pump Type/Size	Delivery, Q (min, max), m³/h	Pump head, H (max, min), m	∆h, m, add.	Rotation Speed, RPM	Motors' Output, Nafl., kW	Unit Gross Weight, kg	Overall, LхBхH, mm
1.	NDR 250-150-380/2	180 (108-207)	211 (210-212)	3,0	3000	250	3520	3450х1590х1290
2.	NDR 250-200-350/2	418 (251-480)	225 (208-258)	4,0	3000	400	6735	3980х1650х1360
3.	NDR 300-200-500/2	163 (98-188)	149 (145-155	1,0	1500	132	6230	4630х1840х1620
4.	NDR 350-250-500/2	519 (312-597)	168 (165-175)	2,6	1500	400	9045	5530х1840х1744
5.	NDR 400-250-640/2	702 (421-808)	224 (217-234)	3,0	1500	630	12130	4925х2050х2010
6.	NDR 400-300-450/2	940 (584-1081)	41 (38-47)	4,1	1500	200	7225	3930х2020х1760

Example of Design Designation (NDR) 250-150-380/2-55-К-УХЛ4, where:

Н - Pump;
Д - dual-supporting;
Р - radial;
250 - Pump INlet Diameter, mm;
150 - Pump OUTlet Diameter, mm;
380 - NOMINAL Impeller’s Diameter, mm;
2 - TOTAL Impellers in the Pump;
55 - End-Face Seal Code;
К - Code of the Pump’s Flow-Channel Material;
УХЛ4 - Climatic Version and Installational Category according to the RUSSIAN ГОСТ 15150-69.

Fields of Characteristics for the Pumps НДР (NDP)