Vertical multistage centrifugal pumps in ring-section design

Vertical multistage centrifugal pumps in ring-section design

Vertical multistage centrifugal pumps in ring-section design PUMP DESIGN Multistage centrifugal pumps in ring-section design, radially split, with closet radial impellers and suction impeller at 1st stage for lower NPSH values. Casing parts sealed by O-rings and assembled by robust tie bolts positioned externally at suction branch. Radial suction and flow inlet which can be rotatedevery 90. Flanges accordino to DIN and ANSI (drilling, sealing step and flange thickness). BEARING Flanged greace on both pump sides, lubrificated from the pompato liquid. Flanged oil-lubrificated bearings on the side commando of the pump AXIAL TRUST Pumps equipped with bilance drum for the hydraulic balancing of the impeller axial thrust. Residual thrust absorbed by axial bearing. SHAFT SEALS Cooled packing stuffing box, with or without barrage fluid injection. Single mechanical seal in accordance with DIN 24960, cooled or uncooled. APPLICATIONS Washing plants Artificial snowing plants Irrigation plants Heating plants Cooling plants Suprheated water plants Condensate lift plants High pressare lift plants Water feed and anti-fire plants WORKING FEATURES DN suct./flow 32/80 and 50/125 Q up to 100 m³/h ( l/s) H upto1000m max P up to 100 bar max T from 10 C a +140 C speed up to 2900 rpm standard flanges DIN Suction inlet PN16 - PN25 Flow inlet PN64 - PN100 Standard flanges ANSI Suction inlet Class 150 - Class 300 Flow inlet Class 600 - Class 900 COUPLING They are mode of a support that is equipped with athrust bearing piaced between the basic-plate and the electric motor. Two elastic semi-joints enable the trasmission of the motion from the motor to the pump. They are equipped with device against reverse.

80.2-80.4 Tecnical data TECNICHAL DATE Type pump 32.2 50.2 50.4 80.2 80.4 mm. 25 30 35 Shaft diam. coupling 0.845 0.845 0.845 Max. value P/n (Kw/1') Albero/Shaft x5crni1812 0.732 0.098 0.165 Albero/Shaft SAF2205 0.971 0.129 0.216 Impeller Diam. Max, mm. 180 195 200 215 220 Dimension packing mm. 10 10 10 Nr. 5 5 5 Max. liquid temperature Max. pressure on suction Max. pressure on descarge 4 Bar 140 C 16 Bar 6 2 Minimun number of stage 20 Maximun number of stage HP r.p.m. 2900 15 2 2 18 18 16 16 13 12 10 10 EFFICIENCY REDUCTION For N stage For impeller material 1 2 3 4 Bronze Steel Steel Inox 32 50 80-4 -3-2 -1-3 -4-8 -4-3 -2-1 -3-4 -8-3 -2-1 - -2-3 -6 Tollorances on performances according to ISO 9906 - Degree 2, Annex A In order to keep its products constantly ahead of technical evolutions, NORIA s.r.l. has reserved right, without any prior notification, to modify dimensions and characteristics of the products described in this catalogue, Materials DIN NFA ASTM Cast iron Gg25 FT 25 A 48 : Nr.35 Ductile cast iron GGG42 FGS 42-12 A 536 : Gr 6-A5-12 Bronze G Cu Sn 10 Cu Sn 8 B 584 : C90500 Bronze G Cu Pb 10 Sn Cu Sn 8 B 584 : C90500 Carbon steel GS C25 A 48 M A 216 WCB Carbon steel Cr X 20 Cr 13 Z 20 Cr 13 A 276 Tp. 420 Crbon Steel CrNiMo GX 6 CrNiMo 1812 Z 6 CND 18-12 M A 296-CF8M Crbon Steel CrNiMo Duplex Steel X 5 CrNiMo 1812 SAF 2205 Z 6 CND 17-11 M A 276 Tp. 420 SAF 2205 SAF 2205

80.2-50.4 Tecnical data Part. N Description Variants 1.1 (1) 1.2 1.3 (1) 1.4 1140 Discarge casing Gg25 GG42 G GG25 GG42 1150 Gg25 GG42 GG25 GG42 Stage casing 1310 Gg25 GG42 GG25 GG42 Bellmouth 1413 1450 Diffuser Gg25 GX 6 CrNiMo 1810 1500 Gg25 G Cu Sn 10 X 20 Cr 13 Wear ring 1600 Gg25 G Cu Sn 10 X 20 Cr 13 Bush 2100 X20 Cr 13 Shaft 2200 Gg25 G Cu Sn 10 GX 6 CrNiMo 1810 Impeller 2410 X20 Cr 13 Space sleeve 3311 Bearing bush suction side 3312 Bearing bush delivery side 3411 Sleeve suction side 3412 Sleeve delivery side 6210 Balance disc Part. N Description 2.01 2.2 Variants 3.1 3.2 1140 Discarge casing GS C 25 GX 6 CrNiMo 1810 SAF 2205 1150 Stage casing GS C 25 GX 6 CrNiMo 1810 SAF 2205 1310 Bellmouth GS C 25 GX 6 CrNiMo 1810 SAF 2205 1413 1450 Diffuser GS C 25 GX 6 CrNiMo 1810 1500 Wear ring X20 Cr 13 X 2 CrNiMo 1810 1600 Bush X20 Cr 13 X 2 CrNiMo 1810 2100 X 20 Cr 13 X 5 CrNiMo 1812 Shaft 2200 Impeller GS C 25 GX 6 CrNiMo 1810 2410 X 20 Cr 13 X 2 CrNiMo 1810 Space sleeve 3311 Bearing bush suction side 3312 Bearing bush delivery side 3411 Sleeve suction side 3412 Sleeve delivery side 6210 Balance disc

80.2-50.4 Section Pump 1371 3412 4610.2.2 6731 1140 4610.1 1600 6710 2912 3411 3311.1 6531 1341 2531 2100 3312 2410 1413 1500 2200 1150 1450 2210 6855 6580.1 6571 1310 1140 Discharge casing 3311 Bearing bush suction side 1150 Stage casing 3312 Bearing bush delivery side 1310 Bellmouth 3411 Sleeve suction side 1341 Support column 3412 Sleeve delivery side 1371 Delivery elbow 4610.1 O-Ring 1413 Diffuser last stage 4610.2 O-Ring 1450 Diffuser 6535 Counterflange 1500 Wear ring impeller 6571 Tie bolt 1600 Bush.1 Screw 2100 Shaft.2 Screw 2200 Impeller 6580.1 Nut 2210 Impeller suction stage 6710 Key for impeller 2410 Sleeve 6731 Key for shaft sleeve 2531 Retaing ring aplit 6855 Washer 2912 Impeller nut

80.2-50.4 Section electrical commando 6742 7211 6737 2474 3013 3261 6544 6580.3 6535 7221 2915 3142 6475 3854 3200 4610 3856 4610 4610 1381 3860 6515 6573 6580.2 4610 4610 6570 4132 6140 4120 6578 4110 4134 4130 2915 Adjusting nut 6515 Plug 3013 Thrust ball bearing 6531 Strainer 3142 Lantern 6544 Circlip 3200 Bearing housing 6570 Screw 3261 Bearing cover drive size 6573 Stud 3854 Oil filler plug.3 Screw 3856 Oil sight gauge.4 Screw 3860 Oil retaining tube.5 Screw 4110 Stuffing box housing.6 Screw 4120 Gland.7 Screw 4130 Gland packing.8 Screw 4132 Neck bush 6578 Screw 4134 Lantern ring 6580.2 Nut 4610.3 O-Ring 6580.3 Nut 4610.4 O-Ring 6737 Key for centring sleeve 4610.5 O-Ring 6742 Key for coupling 4610.6 O-Ring 7211 Coupling half drive side 4610.7 O-Ring 7221 Coupling half pump side