4" BOREHOLE CENTRIFUGAL PUMPS

Product catalog summary

Overview: The 4BHS series comprises 4-inch submersible borehole pumps made entirely of stainless steel (AISI 304), known for their reliability, lightweight design, wear resistance, and efficiency. They are easy to maintain and compatible with any NEMA standard motor.

Specifications:

Materials: The casing and pump bracket are made of stamped stainless steel, with tungsten carbide bearings and friction rings. The pump shaft is 13.3 mm in diameter, made by spline forming.
Design Features: Features include a replaceable floating liner ring, anti-erosion design, and sand resistance. The liner ring is self-aligning, made of EPDM rubber with a stainless steel core.
Motor Types: Two versions are available: O4BHS with coolant liquid bath motors and W4BHS with water bath motors.
Applications: Suitable for water feeding plants, building pressurization, fire fighting systems, irrigation, fountains, washing, and moving clean and moderately aggressive water.

Performance:

Capacity and Efficiency: Various models offer different power outputs and impeller numbers, providing a range of capacities and efficiencies.
Operating Conditions: Maximum water temperature is 30°C with water bath motors and 40°C with coolant liquid bath motors. Maximum sand content is 50 ppm, and chlorine ion density is 500 ppm.

Technical Data:

Motor Specifications: Motors are available in single-phase and three-phase versions, with power ratings from 0.55 kW to 5.5 kW, featuring direct on-line starting, insulation class F, and protection degree IP 58.
Construction Materials: Key components like the impeller, intermediate casing, and discharge casing are made of EN 1.4301 (AISI 304), while the shaft is made of EN 1.4401 (AISI 316).

Performance Curves and Tables: Detailed performance curves and tables illustrate the relationship between capacity (Q) and total manometric head (H) for both single-phase and three-phase motors.

Technical Specifications: Detailed specifications for various EBARA pump models include power ratings in kW and HP, cable types, and maximum lengths, with attention to voltage drop considerations at 30°C ambient temperature.

Procedures and Calculations: A formula for calculating permissible maximum cable length (Lmax) based on operating voltage (Ui) and nominal voltage (Un) is provided, with an example calculation for a 0.75 kW motor.

Standards and Recommendations: Recommendations include considering voltage drop and ambient temperature when selecting cable types and lengths to ensure optimal pump performance.

Contact Information: Contact details for EBARA branches and agencies across Italy and Europe are provided, including addresses, phone numbers, and fax numbers for locations in the UK, Spain, France, Germany, and Poland.

Additional Notes: EBARA Pumps Europe S.p.A. reserves the right to make modifications without prior notice, with a disclaimer regarding potential changes to specifications.

Catalog excerpts

4 SUBMERSIBLE BORE HOLE PUMPS TOTALLY MADE OF STAINLESS STEEL ELETTROPOMPE SOMMERSE 4Ԕ CON IDRAULICA INTEGRALMENTE IN ACCIAIO INOX >

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4BHS/A Casing and pump bracketmade of stamped stainless steel Manicotto di mandata e supporto motore in acciaio inox stampato Radial bearing made of tungsten carbide Cuscinetti radiali in carburo di tungsteno Axial thrust bearing and friction ring made of tungsten carbide Cuscinetto assiale ed anello reggispinta in carburo di tungsteno ReplaceableӔ and floating liner ring Anello di rasamento sostituibile e flottante Pump shaft diameter 13.3 mm made by spline forming Diametro albero scanalato: 13,3 mm >

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Axial thrust bearing and friction ring made of tungsten carbide Cuscinetto assiale ed anello reggispinta in carburo di tungsteno > Stadio intermedio profilato in modo da evitare usure dovute alla velocit del fluido e migliorare lefficienza idraulica. A disk shaped insert is fitted to the intermediate casing to promote smooth flow and prevent high velocity areas that accelerate erosion. > Anello di rasamento sostituibile e flottante, inserito nella cassa in AISI 304. Costruito in EPDM con anima di acciaio inossidabile, evita le dilatazioni ad alte temperature. Autoallineante di tipo flottante....

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O 4 BHS 4 29 // 22 M O 4 BHS 4 29 22 M > SINGLE PHASE VERSION ONLYPOWER OUTPUT (kW x 10)NUMBER OF IMPELLERSm SOLO VERSIONE MONOFASE POTENZA MOTORE (kW x 10)NUMERO DI GIRANTIPORTATA NOMINALE MAX IN m 3 /h AT MAX EFFICIENCYMODEL SERIES4 DIMENSION OF DEEP WELLSOIL FILLEDWATER FILLED 3 /hSERIE PER POZZI DA 4Ԕ MOTOR TYPETIPO MOTORE OW OW > IN BAGNO DI LIQUIDO REFRIGERANTE MOTORE AD ACQUA

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Type pumps Power/ Potenza Q=Capacity/ Portata Modello kWHPl/min 01520304050Single PhaseThree Phasem > 3 /h 00,91,21,82,43,0 MonofaseTrifase H=Total manometric head in meters/ Prevalenza [m] 4BHS2 13/5M4BHS2 13/50,550,7575,566,562,553,542,526,64BHS2 18/7M4BHS2 18/70,751,0104,092,086,074,058,539,64BHS2 27/11M4BHS2 27/111,11,5157,0138,0129,0111,088,059,5 4BHS2 36/15M4BHS2 36/151,52,0209,0184,0172,0148,0117,079,0 4BHS2 44/22M4BHS2 44/222,23,0255,0224,0211,0180,0143,097,0 4BHS2 51/22M4BHS2 51/222,23,0296,0260,0244,0209,0166,0112,0 >

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Type pumps Power/ Potenza Q=Capacity/ Portata Modello kWHPl/min 06080100120150180Single PhaseThree Phasem > 3 /h 03,64,867,2910,8 MonofaseTrifase H=Total manometric head in meters/ Prevalenza [m] 4BHS7 4/7M4BHS7 4/70,751,024,622,822,020,819,115,710,44BHS7 7/11M4BHS7 7/111,11,543,039,938,536,333,527,518,24BHS7 10/15M4BHS7 10/151,52,061,557,055,052,048,039,326,0 4BHS7 12/22M4BHS7 12/222,23,074,068,566,062,557,547,031,3 4BHS7 14/22M4BHS7 14/222,23,086,080,077,072,567,055,036,5/4BHS7 18/303,04,0113,0106,0102,097,591,075,552,0 /4BHS7 23/404,05,5144,0135,0131,0125,0116,096,566,0 >

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SECTIONAL VIEW/ VISTA IN SEZIONE 4BHS > 9 size="-1">

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NPART NAME / DESCRIZIONE >

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EBARABARI Via Po, 3 70026 MODUGNO (BA)Tel. 080/5320531 - Fax: 080/5320478 EBARA CAGLIARI Via del Fangario, 29 - 09122 CAGLIARI Tel. 070/274281 - Fax: 070/253643 EBARA FIRENZE Via del Pesco, 15 Loc. La Querce 59100 PRATOTel. 0574/514175 - Fax: 0574/700126 EBARAMILANO Via Magenta, 77 - 20017 RHO(MI) Tel. 02/93507358/59 - Fax: 02/93507361 Via Don L. Sturzo, 181/183 ZONAINDUSTRIALE - 90044 CARINI(PA)Tel. 091/8680840 - Fax: 091/8669790 EBARAPALERMO EBARAPESCARA Via Aterno, 31 - Z. Ind.le e Com.le 66100 SAMBUCETO - S. GIOVANNI TEATINO ( CH)Tel. 085/4465145 - Fax: 085/4465171 EBARAROMA Via E. Ferrari,...

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