CVFV Vertical multistage lowpressure pumps
VERTICAL MULTISTAGE LOWPRESSURE PUMPS CVFV Application Vertical pumps CVFV are intended for pumping drinking and service water or even slightly polluted or turbid water containing 5 g sludge or further impurities a per litre, with max. grain size 0.5 mm. Max. temperature of pumped water 60 C. Permisible ph values range of pumped water 6 ph. Pumps may be applied to water management i n d u s t r y, w a t e r s u p p l y s e r v i c e s a n d technological processes of various industrial plants requiring water supply. Design According to their constructional arrangements those pumps are produced in following workmanships: Wet sump version basic version for direct pumping from a water supply, with arrangement of discharge branches TEE under the machine room floor and/or TEV above the machine room floor. Wet sump version with an intermediate floor for buildings where it is necessary to consider increasing water level in a sump and flooding the space below the floor, there the pump is provided with a special intermediate floor closure for max. upward pressures up to 4 bar. The closure is fixed, together with sealing it incorporates even the stator anchorage at the intermediate floor. On the closure there is the discharge branch TEE placed. discharge branches may be both TEE and TEV. Pumpset consists of following main parts: Hydraulic part Column pipe Discharche elbow Bearing suspension assembly Electric motor Hydraulic part is represented by centrifugal single or multistage pump with shrouded impellers being provided with replaceable wear ring on the suction side. Shaft is supported on journal bearings, lubricated with a pumped water. Column pipe connecting the hydraulic part with the discharge elbow and bearing suspension is of steel flanged pipes where the pumpset is carried in. Shaft is supported on guide bearings. Guide bearings in the piping wet parts are of rollingcontact type, grease lubricated. The seal is of gland packing placed in the discharge elbow. Bearing suspension assembly bears the pumpset, inclusive of the electric motor and further, it may take up the rotor axial thrust through a rollingcontact bearing, that may be oil or grease lubricated. Dry sump version the pump may be supplied with a foottype suction elbow. The suction elbow sits at the bottom of the pump sump on adjustable supports facilitating both dismantling and access to the pumpset hydraulic part in the sump. Arrangement of
Material options Pump main parts are of following materials: Option LN Material option LU Impellers are of chrome steel, materials of further parts are the same as with the LN option. Suction and discharge cover Stage casing Discharge elbow Guidevaned casing, diffusers Impellers, wear rings Shaft Shaft sleeves Journal guide bearings Guide pipes grey cast iron grey cast iron grey cast iron grey cast iron grey cast iron carbon steel stainless steel steel and bearing rubber steel Special option Special material and design version may be manufactured following characteristics of pumped media and whole environment.these versions may be manufactured from carbon steel, stainless steel and so on. 3
CROSS-SECTION OF PUMP WITH DISCHARGE BRANCH UNDER FLOOR TEE PARTIAL CROSS-SECTION OF PUMP WITH DISCHARGE BRANCH ABOVE FLOOR TEV 06 Suction cover 07 Discharge casing 08 Stage casing 5 Suspension body 44 Discharge elbow 7 Diffuser Pump shaft. Shaft of column pipe.3 Shaft of discharge elbow 3 Suspension shaft 30 Impeller 30 Rollingcontact bearing housing 3 Radial ball bearing 33 Thrust ball bearing 34 Motor stool 350 Bearing housing 360. Thrust bearing cover 360.3 Radial/journal bearing cover 383 Sliding guide bearing 45 Stuffing box 45 Gland 46 Gland packing 50 Wear ring 507 Thrower 56 Bearing hub 59. Shaft sleeve, suction side 59. Spacer sleeve 59.3 Shaft sleeve, discharge side 59.4 Shaft sleeve 59.5 Stuffing box sleeve 545. Stuffing box sleeve 545. Stage bush 545.3 Bearing of discharge casing 545.4 Column pipe bearing 636 Lubricating nipple 7 Column 840 Coupling 85 Screwed coupling 905 Connection bolt 90 Shaft nut 4
INFORMATIVE SELECTION CHART OF CVFV PUMPS Q [l.s ] 50-CVFV-65/ 6 400-CVFV-530/ -CVFV-350/ 6 600-CVFV-700/ 50CVFV65/ 00-CVFV-305/5 350CVFV460/ 7 -CVFV-600/ 9 50CVFV65/ 300-CVFV-400/ 3 350CVFV460/ 7 7 350-CVFV-460/3 350CVFV460/3 00CVFV305/ 6 400CVFV530/ 0 00CVFV305/ 4 400CVFV530/ 8 400CVFV530/3 3 -CVFV-350/ 8 600-CVFV-700/ 3 350-CVFV-460/ 8 400-CVFV-530/3 3 CVFV350/ 7 CVFV600/ CVFV350/ 5 CVFV600/ 4 4300CVFV400/ 300-CVFV-400/8 600CVFV700/ 9 50-CVFV-65/ 300CVFV400/ 4 400-CVFV-530/ 6 600CVFV700/ 5 350-CVFV-460/ 0 00-CVFV-305/ 5 -CVFV-600/ H [m] 00 n = 450 min 75 50 40 0 30 9 3 0 5 0 7,5 5 0 30 40 50 75 00 50 00 300 400 Q [l.s ] 5
6 TECHNICAL AND DESIGN DATA Pump type Speed min Number of stages Discharge branch DN/PN Max. stavební délka L (m) Moment of inertia (kg/m ) versions TEE, TEV Weight (kg) Version TEE Version TEV Pump + suspension assembly m of pipe column shaft Pump Suspension UV Suspension UP m of pipe column (shaft + pipe) Suction strainer m of suction pipe 50-CVFV- -65-35 50/0 50/0 0,45 0,3 0,000 0,000 66 8 7 4 56 53 7 7 7 56 450 50/0 50/0 0,58 0,3 0,000 0,000 66 8 7 4 46 53 7 7 00-CVFV- -305-40 00/0 00/0 9,5 0 9,5 0 0,78 0,363 0,000 0,000 93 35 40 345 360 60 60 75 5 450 00/0 00/0 9,5 0 9,5 0 0,9 0,376 0,000 0,000 93 35 65 360 375 60 6 -CVFV- -350-46 680 /0 /0 9 9,5 0,473 0,773 0,006 0,006 65 457 390 390 65 65 7 7 83 67 450 /0 /0 9 9,5 0,488 0,843 0,006 0,0048 65 457 390 435 65 670 7 79,5 300-CVFV- -400-5 300/0 300/0,5 0 0 0,73,304 0,000 0,0034 390 669 440 505 695 870 94,5 97 83 87 350-CVFV- -460-59 3 350/0 350/0 350/0,5 0,5,360,830 3,950 0,006 0,000 0,000 576 09 463 630 840 840 885 85 85 3 3 0 400-CVFV- -530-68 3 400/0 400/0 400/6,5 3 0 0,5,840 5,00 7,70 0,0086 0,050 0,0 8 48 9 850 996 3 35 678 6 6 6 55 09 -CVFV- -600-78 /0 /6,5,5 5,50 0,790 0,050 0,0390 5 38 080 60 460 65 77 55 600-CVFV- -700-90 600/0 600/6,5 0,5 0,490 8,430 0,0300 0,0550 539 758 87 857 3 44 98 98 90 9
BASIC VERSION- WET SUMP DRY SUMP VERSION WET SUMP WITH INTERMEDIATE FLOOR VERSION CONNECTING DIMENSIONS HOLE FOR FOUNDATION FRAME GREASE GREASE CONNECTING DIMENSIONS 7
DIMENSIONS OF PUMPS WITH DISCHARGE BRANCH TEE Pump type 50-CVFV 00-CVFV -CVFV 300-CVFV 350-CVFV 400-CVFV -CVFV 600-CVFV A Number of stages 3 376 553 48 6 458 69 543 808 B 00 80 300 350 400 650 700 C 450 450 670 670 754 754 870 D D D D 3 D 4 DN 50 DN 50 DN 50 DN 00 DN 00 DN 00 DN 00 DN 00 DN 00 DN 00 DN DN DN DN DN 640 945 735 085 435 DN 830 30 DN DN DN DN E 554 635 74 790 930 030 00 380 F 440 440 50 504 504 605 605 775 G 80 G 60 H h I J K L L L 0 70 0 70 30 370 40 470 50 90 300 0 300 85 685 85 685 570 60 70 80 90 00 0 0 30 L 3 M N P R S T T U V U V 650 650 5 760 760 70 70 8 8 8 650 70 740 385 3685 485 4685 55 755 55 755 355 3755 455 4755 555 000 80 80 30 90 300 0 300 5755 655 755 855 955 055 55 55 355 700 700 50 80 80 760 760 8 3 3 700 770 80 35 735 35 735 300 800 300 800 3300 3800 4300 4800 5300 00 00 340 340 350 350 0 0 40 400 370 30 480 400 350 30 540 460 600 450 600 L + L + A + L 3 + C Basic version and version with intermediate floor L + L + A + L 3 + K + J Dry sump version 335 3735 435 4735 5800 6300 7300 8300 9300 0300 300 300 3300 800 800 50 50 75 90 90 850 850 8 3 3 800 50 960 85 785 85 785 355 855 355 855 3355 3855 4355 4855 5355 385 3785 485 4785 5855 6355 7355 8355 9355 0355 355 355 3355 000 300 300 00 040 040 960 960 8 3 3 30 960 040 80 780 80 780 350 850 350 850 3350 3850 4350 4850 5350 380 3780 480 4780 5850 6350 7350 8350 9350 0350 350 350 3350 000 300 300 50 40 40 080 080 8 7 7 400 080 50 80 780 80 780 400 400 3400 3 4400 4 5400 380 3780 480 4780 5 6400 7400 8400 9400 0400 400 400 3400 000 300 300 650 650 75 440 440 360 360 8 30 30 300 650 370 440 30 80 30 80 440 940 440 940 3440 3940 4440 4940 5440 30 60 600 450 600 330 380 430 480 5940 6440 7440 8440 9440 0440 440 440 3440 000 300 300 650 650 75 440 440 360 360 8 30 30 300 650 360 450 40 90 40 90 560 060 560 3060 3560 4060 4560 5060 5560 860 33 DN 600 DN 600 DN 600 DN DN 700 80 80 780 640 800 580 800 340 390 440 490 6060 6560 7560 8560 9560 0560 560 560 3560 000 450 450 000 000 75 600 600 530 530 8 3 30 50 000 60 700 Dimensions given in mm. Dimensions presized but not given there are variable as they depend on an electric motor type and size. They may be given on request within contract. Connecting dimensions of the pump suction branch flange are intended for PN 0. Connecting dimensions of the discharge elbow flange are intended for PN given in the Table TECHNICAL AND DESIGN DATA. L 3... using a suction pipe individually, for extension the pump total facetoface dimension. H... minimal on level necessary within the pump startingup for its thorough flooding and reliable operation. C and F.. according to individual version. 8
WET SUMP VERSION WITH BRANCH TEV CONNECTING DIMENSIONS 9
DIMENSIONS OF PUMPS WITH DISCHARGE BRANCH TEV Pump type 50-CVFV 00-CVFV -CVFV 300-CVFV 350-CVFV 400-CVFV -CVFV 600-CVFV A Number of stages 3 376 553 48 6 458 69 543 808 B 340 350 40 450 650 650 70 C 450 450 670 670 754 754 870 D D D3 E F DN 50 DN 50 DN 00 554 440 DN 00 DN 00 DN 00 635 440 DN DN DN 74 50 790 504 640 945 930 504 735 085 435 030 605 830 30 DN DN G 60 80 00 0 30 30 80 H h L L 970 470 970 470 970 3470 3970 4470 4970 5470 5970 90 80 6970 7970 8970 9970 0970 970 970 3970 4970 5970 6970 L 3 T U V U V 0 8 650 70 740 965 465 965 465 965 3465 3965 4465 4965 5465 5965 000 30 0 0 3 700 770 80 6965 7965 8965 9965 0965 965 965 3965 4965 5965 6965 960 460 960 460 960 3460 3960 4460 4960 5460 5960 340 40 0 3 800 50 960 6960 7960 8960 9960 0960 960 960 3960 4960 5960 6960 955 455 955 455 955 3455 3955 4455 4955 5455 5955 40 80 0 3 30 960 040 L + A + L 3 + C 6955 7955 8955 9955 0955 955 955 3955 4955 5955 6955 000 950 450 950 450 950 3450 3950 4450 4950 5450 5950 480 300 0 7 400 080 50 6950 7950 8950 9950 0950 950 950 3950 4950 5950 6950 000 940 440 940 440 940 3440 3940 4440 4940 5440 5940 540 340 0 30 300 650 370 440 6940 7940 8940 9940 0940 940 940 3940 4940 5940 6940 000 940 440 940 440 940 3440 3940 4440 4940 5440 5940 00 605 60 40 0 30 300 650 360 450 6940 7940 8940 9940 0940 940 940 3940 4940 5940 6940 000 930 430 930 430 930 3430 3930 4430 4930 5430 5930 860 33 DN 600 DN 600 DN 380 775 780 540 4 30 50 000 60 700 6930 7930 8930 9930 0930 930 930 3930 4930 5930 6930 000 Dimensions are given in mm. Dimensions presized but not given there are variable as they depend on an electric motor type and size. They may be given on request within contract. Connecting dimensions of the discharge branch elbow flange are intended for PN given in the Table TECHNICAL AND DESIGN DATA. L 3... using a suction pipe individually, for lenghtening the pump total facetoface dimension. H... minimal on level necessary within the pump startingup for its thorough flooding and reliable operation. C and F.. according to individual version 0
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