Каталоги оборудования Lowara. Установки повышения давления
В каталоге представлены технические данные установок повышения давления Lowara серии GS20-GS21-GS30 50 Hz с постоянной частотой вращения на базе горизонтльных центробежных насосов серии FH и SH
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Текст каталога
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50 Hz
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GENERAL INTRODUCTION - PRODUCT DESCRIPTION
The GS series pressure booster units mainly comprise pumping stations assembled with two or three SV series vertical multistage pumps, or with FH or SH series enbloc horizontal pumps. A smaller pump can also be added to the main ones. Generally known as a jockey pump, it provides for minor usages in…
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CHOICE AND SELECTION
The demand of a water distribution system is generally determined by the designer according to the type of user structure being served. Users can be schools, hospitals, homes, offices, industries, hotels, shopping centres and for each the water demand changes due to the different requirements of the…
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INST
ALLA TION INSTALLA ALLATION The GS series of pressure booster units are generally connected to pressurised tanks with a suitable capacity for the system. These tanks are normally expansion vessels for capacities up to 500 L. Tanks with higher capacities can also be supplied if necessary. In these…
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CALCULA
TING NET PRES SURE CALCULATING PRESSURE When selecting the GS series of pressure booster units, reference must be made to pump performance. Performance is calculated from the characteristic curves of the pumps and does not consider any pressure drops generated by pipes and valves as in the pressure…
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SUCTION CONDITIONS
The above example does not consider the suction conditions of the pressure booster unit which, similarly, affect final performance. It is therefore always best to check the suction line for leaks, especially as regards positive head installations. An example of positive head installation relative to…
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SET IDENTIFICA
TION CODE IDENTIFICATION GS D I 21 RA / FHE50-200/110 + CA120/55 / DW / PA Options Versions: _ = Standard version DW = Drinking water version A316 = Special version AISI 316 A304 = Special version AISI 304 Code of jockey pump (if present) Code of service pump _ = with check valve on delivery side RA…
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CONTROL P
ANEL FOR GS20, GS21, GS30 PANEL Electric panel for powering, controlling and protecting a maximum of three three-phase pumps, with sheet steel casing (fig. 1) and protected to IP55. fig. 1 Main characteristics: - General doorlock switch, fuse holders and fuses, starting contactors and circuit…
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CONTROL P
ANEL FOR GS20, GS21, GS30 PANEL • Alarms log and hour counters for each installed pump. Alarms visualised on display: - Maximum, minimum pressure; - Circuit breaker for each motor; - Pressure transmitter fault. - Out-of-curve operation; - No water; - Block for tripped external device (PTC…
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Fixed-speed pressure booster sets
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GS.../FH SERIES
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RANGE
The GS series of fixed-speed pressure boosters comprises models with 2 or 3 electric service pumps and an optional jockey pump in order to satisfy the specific needs of every application. GS20 SETS Head up to 100m. Flow rate up to 420 m3/h. GS.../FH • Fixed-speed sets with two horizontal service…
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S OF THE ELECTRIC PUMPS
CHARACTERISTICS The FH series of horizontal centrifugal pumps are single-impeller (FHE, FHS) or twin-impeller (2FHE) with cast-iron bodies and AISI 316L stainless steel shafts. Impeller: made of AISI 316L stainless steel laser technology welded, for sizes 32, 40, 50, 65-125, or cast iron for sizes…
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CHARACTERISTICS SERIES OF PRES SURE BOOSTER SETS PRESSURE • Twin-impeller (2FHE) or single-impeller (FHE, FHS) cast iron horizontal centrifugal pump and shaft made of AISI 316L stainless steel. • Impeller: made of AISI 316L stainless steel laser technology welded, for sizes 32, 40, 65-125 or cast…
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TING CHARACTERISTIC S AND LIMITS OPERATING CHARACTERISTICS OPERA Liquids handled Fluid temperature Ambient temperature Maximum operating pressure Minimum inlet pressure Maximum inlet pressure Installation Hourly starts (single pump) GS.../FH Sound emission Water containing no gas or corrosive and/or…
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• Main on-off valves fitted to the suction and
lines of each pump, ball type with threaded connectors up to series FH 50, butterfly type for FH 65 and FH 80 pumps. • Pressure gauge and two control transmitters located on the delivery side of the unit. AISI 304 VERSION (GS../A304), AISI 316 (GS../A316) For special uses The manifolds, valves…
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TABELLA MATERIALI GRUPPI A VELOCITA' FISSA CON POMPE FHE 32-40-50
TABLE OF MA TERIALS FOR SETS WITH FHE 32-40-50 PUMPS MATERIALS MATERIAL NAME (STANDARD) Manifolds DW A304 AISI 304 On-off valves Non-return valves Pressure switches Pressure transmitters Nipples/caps/plugs/flanges Bracket Base Electric pump body A316 AISI 304 AISI 304 Nickel-plated brass for…
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GS.../FH SERIES BOOSTER SETS
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TABELLA PRESTAZIONI
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GRUPPI DI PRESSIONE
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../FH GSD20 - GSY20 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 420 m3/h. •Head up to 100 m.…
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-PUMP BOOSTER SETS, GSD20-GSY20 SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON DISCHARGE SIDE 26
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GSD20 / GSY20 DRW N° DNA
DNM A B C FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE…
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-PUMP BOOSTER SETS, GSD20-GSY20 RA SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON SUCTION SIDE 28
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GSD20 / GSY20RA DRW N° DNA DNM
A B C FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE…
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../FH GSD21 - GSY21 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 420 m3/h. •Head up to 100 m.…
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-PUMP BOOSTER SETS, GSD21 SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH JOCKEY PUMP HORIZONTAL NON-RETURN V AL VE ON DISCHARGE SIDE VAL ALVE 32
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GSD21
FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE 50-125/40…
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-PUMP BOOSTER SETS, GSD21 RA SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH JOCKEY PUMP HORIZONTAL NON-RETURN V AL VE ON SUCTION SIDE VAL ALVE 34
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GSD21RA
FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE 50-125/40…
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-PUMP BOOSTER SETS, GSY21 SERIES
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-PUMP BOOSTER SETS, GSY21 RA SERIES
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../FH GSD30 - GSY30 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 630 m3/h. •Head up to 100 m.…
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THREE-PUMP BOOSTER SETS, GSD30 SERIES
HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON DISCHARGE SIDE 40
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GSD30
FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE 50-125/40…
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THREE-PUMP BOOSTER SETS, GSD30 RA SERIES
HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON SUCTION SIDE 42
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GSD30RA
FHE 32-125/07 FHE 32-125/11 FHE 32-160/15 FHE 32-160/22 FHE 32-200/30 FHE 32-200/40 2FHE 32-250/55 2FHE 32-250/75 FHE 40-125/11 FHE 40-125/15 FHE 40-125/22 FHE 40-160/30 FHE 40-160/40 FHE 40-200/55 FHE 40-200/75 FHE 40-250/92 FHE 40-250/110 FHE 40-250/150 FHE 50-125/22 FHE 50-125/30 FHE 50-125/40…
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THREE-PUMP BOOSTER SETS, GSY30 SERIES
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THREE-PUMP BOOSTER SETS, GSY30 RA SERIES
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TING CHARACTERISTIC
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT FH 40-200/55 0 0 ~ 2900 [rpm] ISO 9906 - Annex A Q [Imp gpm] Q [US 700 gpm] H [m] H [ft] GS.../FH 1P 2P 3P NPSH [m] NPSH [ft] The performance curves do not take into account flow resistance in the valves and piping. The curves show the…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT The performance curves do not take into account flow resistance in the valves and piping. The curves show the performance with one, two and three pumps running. These performances are valid for liquids with density ρ = 1.0 Kg/dm3 and kinematic…
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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SURE DROP CURVE
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таблицы и схемы — в просмотре
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SURE DROP CURVE
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GS.../SH Series
GS.../SH Fixed-speed pressure booster sets Horizontal Centrifugal electric pumps SH series in AISI 316 Stainless Steel in compliance EN 733 equipped with high efficiency motors flow rate up to 667 m3/h 50 Hz 63
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таблицы и схемы — в просмотре
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RANGE
The GS series of fixed-speed pressure boosters comprises models with 2 or 3 electric service pumps and an optional jockey pump in order to satisfy the specific needs of every application. GS20 SETS • Fixed-speed sets with two horizontal service pumps, SH series, with power ratings up to 37 kW. Head…
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S OF THE ELECTRIC PUMPS
CHARACTERISTICS The SH series comprises single-stage centrifugal pumps in pressed AISI 316 stainless steel. The hydraulic sizes and the diameters of the suction and delivery ports comply with EN 733 (ex DIN 24255). Flange sizes comply with EN 1092-1. Available sizes: DN 25 to DN 80. Motor: enbloc…
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CHARACTERISTICS SERIES OF PRES SURE BOOSTER SETS PRESSURE HORIZONT AL ELECTRIC PUMPS SERIES: HORIZONTAL SHE 32, 40, 50, 65, 80 SERIES GS.../SH • Single impeller cast iron horizontal centrifugal with pump body and shaft made of AISI 316L stainless steel. • Closed impeller made of AISI 316L stainless…
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TING CHARACTERISTIC S AND LIMITS OPERATING CHARACTERISTICS OPERA Liquids handled Fluid temperature Ambient temperature Maximum operating pressure Minimum inlet pressure Maximum inlet pressure Installation Hourly starts (single pump) Sound emission Water containing no gas or corrosive and/or…
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• Main on-off valves fitted to the suction and
delivery lines of each pump, ball type with threaded connectors up to series SH 50, butterfly type for SH 65 and SH 80 pumps. • Pressure gauge and two control transmitters located on the delivery side of the unit. AISI 304 VERSION (GS../A304), AISI 316 (GS../A316) For special uses The manifolds…
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TABELLA MATERIALI GRUPPI A VELOCITA' FISSA CON POMPE SHE 25-50
TABLE OF MA TERIALS FOR SETS WITH SH 25-32-40-50 PUMPS MATERIALS MATERIAL NAME (STANDARD) Manifolds DW A304 AISI 304 A316 AISI 316 Non-return valves Pressure switches Pressure transmitters Nipples/caps/plugs/flanges Bracket Base AISI 304 AISI 304 Nickel-plated brass for Nickel-plated brass AISI 304…
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GS.../SH SERIES BOOSTER SETS
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GS30/SH SERIES BOOSTER SETS
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GS20, GS21, GS30
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../SH GSD20 - GSY20 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 444 m3/h. •Head up to 100 m.…
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-PUMP BOOSTER SETS, GSD20-GSY20 SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON DISCHARGE SIDE 76
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GSD20 / GSY20 DRW N° DNA
DNM A B C D E F H H1 H2 H3 I L SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75…
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-PUMP BOOSTER SETS, GSD20-GSY20 RA SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON SUCTION SIDE 78
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GSD20 / GSY20RA DRW N° DNA DNM
A B C D E F H H1 H2 H3 I L SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75…
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../SH GSD21 - GSY21 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 444 m3/h. •Head up to 100 m.…
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-PUMP BOOSTER SETS, GSD21 SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH JOCKEY PUMP HORIZONTAL NON-RETURN V AL VE ON DISCHARGE SIDE VAL ALVE 82
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GSD21
SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75 SHE40-250/92 SHE40-250/110…
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-PUMP BOOSTER SETS, GSD21 RA SERIES
TWO-PUMP HORIZONT AL ELECTRIC PUMPS WITH JOCKEY PUMP HORIZONTAL NON-RETURN V AL VE ON SUCTION SIDE VAL ALVE 84
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GSD21RA
SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75 SHE40-250/92 SHE40-250/110…
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-PUMP BOOSTER SETS, GSY21 SERIES
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-PUMP BOOSTER SETS, GSY21 RA SERIES
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MARKET SECTORS
CIVIL, INDUSTRIAL APPLICA TIONS APPLICATIONS •Water network supply in condominiums, offices, hotels, shopping centres, factories. •Water supply to agricultural water networks (e.g. irrigation). GS.../SH GSD30 - GSY30 Series SPECIFICA TIONS SPECIFICATIONS •Flow rate up to 666 m3/h. •Head up to 100 m.…
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THREE-PUMP BOOSTER SETS, GSD30 SERIES
HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON DISCHARGE SIDE 90
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GSD30
SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75 SHE40-250/92 SHE40-250/110…
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THREE-PUMP BOOSTER SETS, GSD30 RA SERIES
HORIZONT AL ELECTRIC PUMPS WITH NON-RETURN V AL VE HORIZONTAL VAL ALVE ON SUCTION SIDE 92
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GSD30RA
SHE25-200/40 SHE25.250/55 SHE25-250/75 SHE25-250/110 SHE32-125/07 SHE32-125/11 SHE32-160/15 SHE32-160/22 SHE32-200/30 SHE32-200/40 SHE32-250/55 SHE32-250/75 SHE32-250/110 SHE40-125/11 SHE40-125/15 SHE40-125/22 SHE40-160/30 SHE40-160/40 SHE40-200/55 SHE40-200/75 SHE40-250/92 SHE40-250/110…
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THREE-PUMP BOOSTER SETS, GSY30 SERIES
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THREE-PUMP BOOSTER SETS, GSY30 RA SERIES
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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таблицы и схемы — в просмотре
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TING CHARACTERISTIC
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TING CHARACTERISTIC
S A T 50 Hz (SERVICE PUMP) OPERATING CHARACTERISTICS AT SH 80-200/370 0 ~ 2900 [rpm] 500 0 1000 1500 1000 ISO 9906 - Annex A 2500 Q [Imp gpm] 2000 2000 3000 Q [US gpm] H [m] H [ft] 3P 2P 1P NPSH [ft] NPSH [m] GS.../SH 2000 400 4000 6000 600 8000 10000 3 800 Q [m /h] 12000 Q [l/min] 76803_A_CH 5 The…
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SURE DROP CURVE
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таблицы и схемы — в просмотре
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SURE DROP CURVE
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ACCES
SORIES ACCESSORIES ACCESSORIES 113
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DIAPHRAGM T
ANKS TANKS The booster sets are ready for installation, directly on the manifold, of 24-litre diaphragm tanks, one for each pump. The sets are also equipped with caps to close off the unused couplings. Larger tanks can also be connected to the unused end of the discharge manifold. For proper sizing…
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RUBBER EXP
ANSION JOINT KIT EXPANSION The anti-vibrating joints or compensation joints can be used in order to absorb deformations, expansions, noises in the piping and to reduced ram blows. Moreover they can resist a high degree of empty that allows the absorption of negative expansions for depression. Being…
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DRY RUNNING PROTECTION SYSTEMS
ELECTRODE PROBE PROTECTION METHOD ACCES SORIES ACCESSORIES The electrode probe protection system is used when the water supply comes from open tanks or wells. A set of three probes is connected directly to the electronic board in the electrical panel. With the three electrodes immersed in the water…
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APPENDIX
TECHNICAL APPENDIX 117
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WATER REQUIREMENTS IN CIVIL USERS
Determination of the water requirement depends on the type of users and contemporaneity factor. The calculation may be subject to regulations, standards or customs that may vary from country to country. The calculation method shown below is an example based on practical experience, designed to…
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TABLE OF WATER REQUIREMENTS IN CIVIL USERS
WITH FLUSH TANK WC NUMBER OF APARTMENTS 1 WITH CONTROLLED FLUSHING SYSTEM WC 1056 1114 For seaside resorts, a flow rate increased by at least 20% must be considered. 119 TECHNICAL APPENDIX FLOW RATE (l/min) G-at-fi_a_th
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WATER REQUIREMENTS FOR COMMUNITY BUILDINGS
TECHNICAL APPENDIX The requirements of buildings intended for specific uses, such as offices, residential units, hotels, department stores, nursing homes and so on, are different from those of condominiums, and both their global daily water consumption and the maximum contemporaneity flow rate are…
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USE OF BOOSTER SET
Water is usually delivered by public supply systems and the pressure is generally sufficient for the proper operation of the users’ water and sanitary equipment. When this pressure is not sufficient, booster sets are employed to increase water pressure and ensure an acceptable minimum value at the…
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Water supply systems in civil buildings
The configuration of the supply system must comply with the following conditions: - The minimum pressure ensuring the proper operation of the equipment must be guaranteed at the most unfavourable drawing point (1.5 bar for valves and flush tank WC, and 2 bar for controlled flushing system WC). - At…
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DETERMINING THE HEAD OF THE SET AND INTAKE
CONDITIONS Level intake The delivery head of the set (H tot) is the sum of: - He : geodetic difference in level between the set and the furthest delivery point. - Hc : flow resistance along all the pipes and through other system components, such as valves, filters, etc.. - Hr : pressure required at…
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NPSH
The minimum operating values that can be reached at the pump suction end are limited by the onset of cavitation. Cavitation is the formation of vapour-filled cavities within liquids where the pressure is locally reduced to a critical value, or where the local pressure is equal to, or just below the…
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t
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CHOOSING AND
SIZING THE SURGE TANK DIAPHRAGM TANK The purpose of the surge tank is to limit the number of hourly starts of the pumps, placing part of its stock of water, which is maintained under pressure by the air above it, at the disposal of the system. The surge tank can be of the air cushion or diaphragm…
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FLOW RESISTANCE
TABLE OF FLOW RESISTANCE IN BENDS, VALVES AND GATES The flow resistance is calculated using the equivalent pipeline length method according to the table below: DN ACCESSORY TYPE 45° bend 90° bend 90° smooth bend Union tee or cross Gate Non return valve 0,2 0,4 0,4 1,1 1,1 0,2 0,6 0,4 1,3 1,5 0,4 0,9…
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Air supply unit
The most commonly used air supply unit model is the “depression” type, which uses the depression produced by the pump suction. fig. 7.2.2 - The air supply unit consists of a body made of plastic material suitable for foodstuffs (1), a spherical rubber shutter (2), an upper brass union (3) with an…
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The method adopted is based on loading unit values as detailed in the Plumbing Engineering Design Guide published by the Institute of Plumbing. When designing a hot or cold water supply system an assessment must be made to obtain the maximum probable simultaneous demand. Depending on the type of…
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ASSESSING HEAD REQUIREMENT (VALID IN U.K. ONLY)
The head required in a boosted cold water system consists of three components, static head, residual pressure and system friction losses. The values of these three components are added together to give the total required head at the system flow rate. Static head (He): This is the difference between…
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ACCES
SORIES ACCESSORIES AIR SUPPLY UNITS FLOAT SWITCHES CYLINDER WATER TANK TECHNICAL APPENDIX VALVES NON-RETURN VALVES COUPLINGS 132 PRESSURE TRANSMITTER
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V
OL UMETRIC CAP ACITY OLUMETRIC CAPACITY VOLUMETRIC CAPACITY Litres Cubic metres Cubic feet Cubic feet Imp. gal. US gal. per minute per hour per hour per minute per minute per minute l/min m3/h ft3/h ft3/min 0,0353 0,5886 0,0167 1,0000 0,1605 0,1337 Imp. gal/min 0,2200 3,6662 0,1038 6,2288 1,0000…
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FURTHER PRODUCT SELECTION AND DOCUMENT
ATION DOCUMENTA Xylect Xylect is pump solution selection software with an extensive online database of product information across the entire Lowara, and Vogel range of pumps and related products, with multiple search options and helpful project management facilities. The system holds up-to-date…
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FURTHER PRODUCT SELECTION AND DOCUMENT
ATION DOCUMENTA Xylect The detailed output makes it easy to select the optimal pump from the given alternatives. • Set own standard units • Create and save projects • Share projects with other Xylect users TECHNICAL APPENDIX The best way to work with Xylect is to create a personal account. This…
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BOOSTER SETS, GS SERIES WITH ELECTRIC PUMPS CA
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SERIES
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таблицы и схемы — в просмотре
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SERIES
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таблицы и схемы — в просмотре
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SERIES
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TECHNICAL APPENDIX
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Xylem
1) The tissue in plants that brings water upward from the roots; 2) a leading global water technology company. We’re 12,000 people unified in a common purpose: creating innovative solutions to meet our world’s water needs. Developing new technologies that will improve the way water is used…
Схемы, таблицы и рисунки — в просмотре документа выше. Клик по номеру страницы открывает её в просмотре.