MB HORIZONTAL CENTRIFUGAL PUMPS Debem manufactured resin-encased horizontal centrifugal pumps are pumps operated by a direct-drive motor (max 3 rpm) for fast fluid transfer and/or drainage with flow rates ranging from 6 to 75 m 3 / hour. Their special open-impeller design allows pumping even with very dirty liquids having apparent viscosity up to 5 cps (at 2 C) and small suspended solids. There are two versions available with different internal mechanical seal depending on use, TL (lip seal) and TS (bellows seal). DEBEM 35 www.debem.it
MB Available in polypropylene, ; Positive suction head operation; Weldless; Mechanical lip or bellows seal; Usable even with extremely dirty liquids; Flow rates: from 6 to 75 m 3 /hour; Head: up to 3 m; Quick and easy maintenance; Inexpensive spares. DESCRPTION OF THE PUMP Resin-encased horizontal centrifugal pumps feature a solid pump casing and a lantern for connecting the electric motor and inspection of the mechanical seal. The open impeller is fitted to the pump shaft that is integral with the drive shaft of the electric motor. The shaft mechanical seal is housed at the rear of the impeller. C A = electric motor B = inspection lantern C = mechanical seal D = impeller E = delivery duct F = intake duct A B D E F HOW IT WORKS The impeller is integral with the shaft and direct-drive electric motor and is rotated at a preset speed with the centrifugal effect producing suction on the intake side and discharge on the delivery side. A B B A E TS = bellows seal C E D TL = lip seal A - Ceramic bushing B - O-ring C - Bushing spacer D - Gasket E - -holding flange C G F D A - Bellows B - Dynamic seal ring C - Static seal ring D - Spring E - Washer F - Circlip G - -holding flange
MB INSTALLATION MB horizontal centrifugal pumps should only be installed with the shaft positioned horizontally in a positive suction head arrangement. Suitable devices should be fitted to prevent dry running and the formation of a vortex and possible air suction. Horizontal centrifugal pumps should only operate WHILST FILLED. Running dry or with air bubbles can cause damage to the mechanical seal. CHEMICAL COMPATIBILITY The type of liquid, temperature and working environment are factors to be considered when deciding on the best choice of construction materials for the pump and its correct chemical compatibility. The table below gives some examples of the most commonly-used substances: SUBSTANCE Polypropylene (Halair ) EPDM (Dutral ) fpm (Viton ) Acetaldehyde A1 D A D Acetamide A1 C A B Vinyl acetate B1 A2 B2 A1 Acetylene A1 A A A Vinegar A B A A Acetone A D A D Fatty acids A A D A A = very good B = good C = poor, not recommended D = severe etching, not recommended - = information not available 1 = satisfactory up to 22 C (72 F) 2 = satisfactory up to 4 C ( F) For further information, please do not hesitate to contact DEBEM s technical service department. We have obtained this information from reliable sources. Debem has not performed any form of testing in this regard and therefore accepts no liability for the accuracy of the details provided. MB PUMPS COMPOSITION CODES ex. MBPTLVN MB in +Viton lip seal + Three-phase motor MB P TLV N Pump model Pump material Type of seal MB - MB MB 1 - MB 1 MB 11 - MB 11 MB - MB MB 13 - MB 13 MB - MB MB 15 - MB 15 MB 155 - MB 155 MB - MB MB - MB P - Polypropylene F - TLV - Viton lip seal TLD - EPDM lip seal TSV - Viton bellow seal TSD - EPDM bellow seal N* - Three-phase motor M - Single-phase motor A - ATEX motor * Standard motor is the three-phase induction type with European voltage (2-pole) 5Hz 37 www.debem.it
MB construction materials: - G 1 1/2 f (standard) with flange DN 4 (on request) G 1 m (standard) with flange DN 25 (on request) Max. flow rate* 6 m 3 /h power 7,2 m.37 kw -.5 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 5 mm 5 cps Net weigth.5 Kg C Max. temp. 9.5 Kg 95 C Max. temp. 1 9 7 6 5 4 3 4,4, 13 17 22 3 35 32, 29,5,2 22,9 19,6,4 13,1 9, 2 1 1 2 3 4 5 6 7 6,5 3,2 Q = m flow rate Q=m 3 /h 3 /h DELIVERY MANDATA 1 1" m m GAS GAS 47 152 197 1 32 9 71 175 N 4 HOLES FORI O 4 1 7 19 INTAKE ASPIRAZIONE 1 1/2 f 1" GAS 1/2 f GAS m = male - f = female * The curves and performance values refer to pumps spare delivery outlet and water at 2 C.
MB 1 construction materials: - G 1 1/2 f (standard) with flange DN 4 (on request) G 1 m (standard) with flange DN 25 (on request) Max. flow rate* 9 m 3 /h power 1.5 m.55 kw -.75 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 7 mm 5 cps Net weigth.5 Kg C Max. temp. 9.5 Kg 95 C Max. temp. 11 1 9 7 6 5 4,4, 13 17 22 3 35 39 44 36, 32, 29,5,2 22,9 19,6,4 4 3 2 1 1 2 3 4 5 6 7 9 1 13,1 9, 6,5 3,2 flow Q = rate m 3 /h Q=m 3 /h DELIVERY MANDATA 1 1" m GAS 47 32 71 175 4 7 19 152 197 1 9 N 4 HOLES FORI O 1 INTAKE ASPIRAZIONE 1 1/2 f 1" GAS 1/2 f GAS m = male - f = female * The curves and performance values refer to pumps spare delivery outlet and water at 2 C. 39 www.debem.it
MB 11 construction materials: - G 2 m (standard) with flange DN 5 (on request) G 1 1/2 m (standard) with flange DN 4 (on request) Max. flow rate* 2 m 3 /h power 15 m 1.1 kw - 1.5 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 2 mm 5 cps Net weigth Kg C Max. temp. 17 Kg 95 C Max. temp. 17 15 13 11 1 9 7 6 5 4 3 2 1 22 44 66 11 132 5 1 15 2 25 3 55,7 49,2 42,6 36, 32, 29,5,2 22,9 19,6,4 13,1 9, 6,5 3,2 Q flow = mrate 3 /hq=m 3 /h DELIVERY MANDATA 1 1" 1/2 m GAS 46 75 27 247 1 191 N 4 FORI HOLES 1O 1 4 5 23 13 27 INTAKE APSIRAZIONE 2 m GAS 2" m GAS m = male * The curves and performance values refer to pumps spare delivery outlet and water at 2 C.
MB construction materials: - G 2 m (standard) with flange DN 5 (on request) G 1 1/2 m (standard) with flange DN 4 (on request) Max. flow rate* 25 m 3 /h m power 1.5 kw - 2 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 6 mm 5 cps Net weigth 2 Kg C Max. temp. 21 Kg 95 C Max. temp. 17 15 13 11 1 9 7 6 5 4 3 2 1 22 44 66 11 132 154 5 1 15 2 25 3 35 59, 55,7 49,2 42,6 36, 32, 29,5,2 22,9 19,6,4 13,1 9, 6,5 3,2 flow Q rate = mq=m 3 /h 3 /h MANDATA DELIVERY 1 1" 1/2 m GAS 4 75 211 257 1 1 9 N 4 HOLES FORI 1 O 1 21 4 23 13 27 INTAKE ASPIRAZIONE 2 m GAS 2" m GAS m = male * The curves and performance values refer to pumps spare delivery outlet and water at 2 C. 41 www.debem.it
G 2 m (standard) with flange DN 5 (on request) G 1 1/2 m (standard) with flange DN 4 (on request) Max. flow rate* 3 m 3 /h power 2 m 2.2 kw - 3 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 6 mm 5 cps MB 13 construction materials: - Net weigth 22.5 Kg C Max. temp. 23.5 Kg 95 C Max. temp. 22 21 2 19 17 15 13 11 1 9 7 6 22 44 66 11 132 154 5 1 15 2 25 3 35 72,1 6, 65,6 62,3 59, 55,7 49,2 42,6 36, 32, 29,5,2 22,9 19,6 Q flow = mrate 3 /hq=m 3 /h DELIVERY MANDATA 1 1" 1/2 1/2 m m GAS GAS 44 75 211 257 1 5 9 N 4 FORI HOLES 1O 1 21 4 23 13 27 INTAKE ASPIRAZIONE 2 m GAS 2" m GAS m = male * The curves and performance values refer to pumps spare delivery outlet and water at 2 C.
MB construction materials: - G 2 m (standard) with flange DN 5 (on request) G 1 1/2 m (standard) with flange DN 4 (on request) Max. flow rate* 4 m 3 /h power 21 m 3 kw - 4 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM mm 5 cps Net weigth 29 Kg C Max. temp. 3 Kg 95 C Max. temp. 22 2 22 44 66 11 132 154 176 19 24 7,7 72,1 65,6 59, 1 6 32,,2 19,6 4 13,1 5 1 15 2 25 3 35 4 45 Q = m /h flow rate Q=m 3 /h DELIVERY MANDATA 1 1" 1/2 m GAS 75 233 1,5 296 INTAKE ASPIRAZIONE 2 m GAS 2 " m GAS 55 1 227 N 4 FORI HOLES O 4 23 13 27 m = male * The curves and performance values refer to pumps spare delivery outlet and water at 2 C. 43 www.debem.it
MB 15 construction materials: - G 2 1/2 f (standard) with flange DN 65 (on request) G 2 m (standard) with flange DN 5 (on request) Max. flow rate* 42 m 3 /h power 25 m 4 kw - 5.5 HP IP55 - F Class - 2-pole - 23/4 V 5 Hz - three-phase - 29 RPM 2 mm 5 cps Net weigth.5 Kg C Max. temp. 9.5 Kg 95 C Max. temp. 24 22 2 1 44 132 176 22 4 1 2 3 4 5 6 5,3 7,7 72,1 65,6 59, 32,,2 flow rate Q=m 3 /h DELIVERY MANDATA 2 m 2" GAS m GAS 6 241 3 527 13 1 N 4 FORI HOLES O 96 19 275 133 25 INTAKE ASPIRAZIONE 2 1/2 f GAS 2" 1/2 f GAS m = male - f = female * The curves and performance values refer to pumps spare delivery outlet and water at 2 C.
MB 155 construction materials: - G 2 1/2 f (standard) with flange DN 65 (on request) G 2 m (standard) with flange DN 5 (on request) Max. flow rate* 45 m 3 /h power 2 m 5.5 kw - 7.5 HP IP55 - F Class - 2-pole - 4/69 V 5 Hz - three-phase - 29 RPM 3 mm 5 cps Net weigth 6 Kg C Max. temp. 63 Kg 95 C Max. temp. 3 2 24 22 2 44 132 176 22 4 3 9,4 91, 5,3 7,7 72,1 65,6 59, 1 1 2 3 4 5 6 7 32,,2 flow rate Q=m 3 /h DELIVERY MANDATA 2 m 2" GAS m GAS 6 619 132 3 96 133 25 252 329 N 4 HOLES FORI O 2 3 INTAKE ASPIRAZIONE 2 1/2 f GAS 2" 1/2 f GAS m = male - f = female * The curves and performance values refer to pumps spare delivery outlet and water at 2 C. 45 www.debem.it
MB construction materials: - G 2 1/2 f (standard) with flange DN 65 (on request) G 2 m (standard) with flange DN 5 (on request) Max. flow rate* 55 m 3 /h 32 m power 7.5 kw - HP 1 IP55 - F Class - 2-pole - 4/69 V 5 Hz - three-phase - 29 RPM 9 mm 5 cps Net weigth 7 Kg C Max. temp. 73 Kg 95 C Max. temp. 34 32 3 2 24 22 2 44 132 176 22 4 3 111,5,9 9,4 91, 5,3 7,7 72,1 65,6 1 2 3 4 5 6 7 59, flow Q = rate m 3 /h Q=m 3 /h DELIVERY MANDATA 2 2" m m GAS GAS 645 6 132 31 96 133 25 25 335 N 4 HOLES FORI O 2 3 INTAKE ASPIRAZIONE 2 1/2 f 2" GAS 1/2 f GAS m = male - f = female * The curves and performance values refer to pumps spare delivery outlet and water at 2 C.
MB construction materials: - G 2 1/2 f (standard) with flange DN 65 (on request) G 2 m (standard) with flange DN 5 (on request) Max. flow rate* 75 m 3 /h 3 m TL-TS power 11 kw - HP 15 IP55 - F Class - 2-pole - 4/69 V 5 Hz - three-phase - 29 RPM 9 mm 5 cps Net weigth 96 Kg C Max. temp. 99 Kg 95 C Max. temp. 42 4 3 36 34 32 3 2 24 22 44 132 176 22 4 3 352 396 137,7 131,2 4,6 1,1 111,5,9 9,4 91, 5,3 7,7 72,1 2 1 2 3 4 5 6 7 9 65,6 59, flow Q rate = m Q=m /h 3 /h MANDATA DELIVERY 2 2" m GAS 695 6 132 31 96 25 335 INTAKE ASPIRAZIONE 2 1/2 f 2" GAS 1/2 f GAS m = male - f = female 17 N 4 FORIØ N 4 HOLES O 2 Ø3 * The curves and performance values refer to pumps spare delivery outlet and water at 2 C. 47 www.debem.it
ACCESORIES - MB PUMP-PROTECTING BASKET STRAINERS Polypropylene build, no metal parts and low head loss make them ideal for installation on a pump suction port, providing protection from suspended solids, filaments, algae, etc. The strainer can be easily removed by unscrewing the lid without the need for tools. max. operating pressure 7 bar For chemical sector, water treatment plants, fish farming, the galvanising, tanning, textile, paper and printing industries and a host of other applications. Available in five different connection sizes: 1, 11/2, 2, 21/2, 3 FOOT VALVES Check valves designed for vertical fitting at the bottom end of the suction pipe on both centrifugal and pneumatic pumps. These nonreturn valves prevent water from flowing out of the suction pipe so that the pump remains primed at all times. Sizes available: 1, 1¼, 1½, 2, 3. Construction materials: and POSSIBILITY OF FLANGED CONNECTIONS