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VBN/VBN-DS line at synchronous speeds
Pump type
Nominal impeller diameter (mm)
Nominal discharge nozzle diameter (mm)
Number of stages
VBN 250 / 50 10
Pump identification
Since the foundation of the company in 1897, Pompe Gabbioneta has been engaged in design andmanufacture of high quality centrifugal pumps.The products and the markets served progressively changed from water to chemical industry and finally,in the last thirty years, to API 610 heavy duty pumps for refinery and petrochemical industries.The product development is based on a thorough interchange of marketing and operating experiencewithin the company and in close cooperation with project and plant engineers.The manufacturing is made in a factory equipped with several modern cnc machines and machine tools,special note has to be given to the machining centers where pump casings can be machinedcompletely with only two settings.In house facilities are designed to meet the performance and NPSH testing requirements of all pumpsmanufactured in the company in full compliance with API 610 standards.A quality assurance system certified in accordance with ISO 9001 is granting the achievement of highest quality for manufactured pumps.
VBN
/VB
N-D
S LI
NEA century of experience
SQ1 Cert n° 0194
UNI EN ISO 9001/94
Pumps units ready for shipment.
In addition, the following pump designs can be provided:
■ Additional rigid coupling to facilitate mechanical seal maintenance activities.
■ Inside drain line.
■ Axial thrust tilting pad bearings for ultra high thrust operating condition.
■ Anti reverse rotation device.
■ Air fan cooling system provided on bearing bracket and /or mechanical seal when required by hot temperature applications.
■ Special bearing isolators at either bearing housing ends.
■ Oil mist lubrication (pure or purge).
■ Temperature and/or vibration detection and monitoring equipment.
Design variations
Coverage chart
50 Hz 2 Poles
60 Hz 2 Poles
Registered Office: Viale Gramsci 79Headquarters: Viale Casiraghi 6820099 Sesto San Giovanni MI ItalyTelephone +39 02.241001 r.a.Telefax +39 02.2424550
e-mail: [email protected]://www.pompegabbioneta.comR.I. MI n.° 65430/1999 REA MI n° 1581455Codice Fiscale 12735020153Partita IVA - VAT IT 02895700967
POMPE GABBIONETA Inc17 South Briar Hollow Ln., Ste 207Houston Texas 77027Telephone 001.713.3554900Telefax 001.713.3556200e-mail: [email protected] (m3/h)
TDH (m) TDH (ft)
Capacity (USgpm)
The VBN, VBN-DS line heavy duty process pumps, available in double - casing or wet pitconfigurations, are multistage, diffuser type, fully designed according to latest edition of API 610 Std.Pump components geometry, optimised through hydraulic, structural, thermal and dynamic F.E.M.analysis, lead to an high product reliability. Particularly to avoid dangerous resonances, the F.E.M.dynamic analysis is carried out on all manufactured pumps taking into account the proper siteoperating conditions.
Main design features are:
■ Closed type impeller with front and rear wear rings as well as balancing holes, to minimise the axial thrust.
■ Large eye single suction or double suction 1st. stage impeller to meet low NPSH requirements.
■ Number of stages rangeable from 1 to 14.
■ Pump shaft in one or at the maximum two pieces, fully machined to respect the more restrictive run-out API limits.
■ As a standard, the rotor axial thrust is supported by a duplex oil lubricated ballangular contact type bearings.
■ Renewable bushings are provided at all interstage and columns.
■ Deep stuffing boxes, designed in accordance to API 682 Std., suitable to accept any type of mechanical or packing seal.
■ Labyrinths and deflectors at either bearing housing to maximise protection against dirt.
General informations
Main pumps applications refer to heavy duties on:■ fluid transport ■ pipeline ■ hydrocarbon booster ■ condensate extraction
VBN
/VB
N-D
S LI
NE
Capacities up to 1500 m3/h (6500 Gpm)
Heads up to 2000 m (6500 Feet)
Temperatures from - 150°C (- 240°F) to 400°C (750°F)
Design working pressure up to 210 barg (3000 Psig)
Hydrotest pressure up to 305 barg (4500 Psig)
Rotational speed up to 4000 Rpm
Operating data
VBN VBN/VBN-DS Line overall dimensionsVBN-DS
General notes1. All dimensions arein mm. Do not use for construction unlesscertified.
2. Dimension F, G and L vary with driverselection.
4”/2” 475 1070 1365 618 900 225 20”200/50 700 375 350 325 30 400 300
Pump type nozzleinches
.
C1A C2 D E E1 Fmax.
N O P RC
620
B F1max.
Hmin.
Imin.
M1M TSANSI
150 RF
VBN
100 270 200 12318”
4”/3” 475 1070 1365 618 900 225 20”200/80 700 375 350 350 30 400 300620 100 270 200 12318”
4”/2” 525 1070 1365 655 900 250 20”250/50 700 375 350 325 30 450 325620 100 300 200 12318”
4”/3” 525 1120 1365 655 900 250 20”250/80 700 375 350 350 30 450 325620 100 300 200 12318”
6”/4” 525 1120 1365 655 900 250 20”250/100 700 375 350 350 30 450 325620 130 300 200 12318”
4”/3” 650 1285 1655 748 1000 350 28”300/80 900 500 475 475 30 600 400820 150 400 200 13424”
6”/4” 650 1285 1655 748 1000 350 28”300/100 900 500 475 475 30 600 400820 150 400 200 13424”
8”/6” 650 1285 1655 748 1000 350 28”300/150 900 500 475 475 30 600 400820 150 400 200 13424”
10”/8” 650 1285 1655 748 1000 350 28”300/200 900 500 475 475 30 600 400820 200 400 200 13424”
8”/6” 800 1285 1655 935 1300 400 36”375/150 1200 625 600 600 35 750 4501100 150 500 200 16830”
10”/8” 800 1285 1655 935 1300 400 36”375/200 1200 625 600 600 35 750 4501100 200 500 200 16830”
12”/10” 800 1285 1655 935 1300 400 36”375/250 1200 625 600 600 35 750 4501100 200 500 250 16830”
4”/3” 525 1120 1365 773 1100 250 20”250/80 700 375 350 350 30 450 325620
VBN-DS
100 400 – 14318”
6”/4” 525 1120 1365 773 1100 250 20”250/100 700 375 350 350 30 450 325620 130 400 – 14318”
4”/3” 650 1285 1655 834 1000 350 28”300/80 900 500 475 475 30 600 400820 150 500 – 17824”
6”/4” 650 1285 1655 834 1000 350 28”300/100 900 500 475 475 30 600 400820 150 500 – 17824”
8”/6” 650 1285 1655 834 1000 350 28”300/150 900 500 475 475 30 600 400820 150 500 – 17824”
10”/8” 650 1285 1655 834 1000 350 28”300/200 900 500 475 475 30 600 400820 200 500 – 17824”
8”/6” 800 1285 1655 1042 1300 400 36”375/150 1200 625 600 600 35 750 4501100 150 625 – 22330”
10”/8” 800 1285 1655 1042 1300 400 36”375/200 1200 625 600 600 35 750 4501100 200 625 – 22330”
12”/10” 800 1285 1655 1042 1300 400 36”375/250 1200 625 600 600 35 750 4501100 200 625 – 22330”
Counterclockwise rotation (Standard)
