EH Horizontal Multistage Pumps

The EH Series, multistage booster pump is designed to meet your pressure boosting needs. The stainless steel construction offers high performance in a wide variety of applications. The EH Series is offered in five flow rates and different horsepower sizes in 1-phase or 3-phase to make sure you have the right pump to fit your application.

Features

• Compact close coupled design, robust and corrosion resistant
• Superior efficiency and performances
• WRAS and ACS approved
• Flexible application base plate
• Floating neck ring in PPS
• Heavy duty oversize motor shaft
• Impellers and diffusers are made of stainless steel in order to achieve durability
• Easy maintenance
• Mechanical seal Type E0 = Carbon graphite / Ceramic alumina / EPDM: EH 3-5-9, EHsp 3-5
• Mechanical seal Type E1 = Carbon graphite / Silicon carbide / EPDM: EH 15-20

Pump Specifications

• Flow:
• up to 29 m³/h at 50 Hz
• up to 30 m³/h at 60 Hz
• Head:
• up to 104 m at 50 Hz
• up to 111 m at 60 Hz
• Connections: Rp threaded for inlet and outlet
• Maximum working pressure: 10 bar
• Maximum allowable amount of sand: 50 g/m³
• Maximum ambient temperature: 40 °C
• Liquid temperature range:
• Minimum: from -15 °C to -10 °C according to gasket material
• Maximum: +90 °C for domestic use (uses covered by CEI EN standard 60335-2-41); +110 °C only for industrial use (uses other than those covered by CEI EN standard 60335-2-41)
• The hydraulic characteristics are guaranteed, according to ISO standard 9906:2012, grade 3B

Motor Specifications

• Single-phase
• Three-phase motor efficiency class IE3
• Asynchronous, TEFC (totally enclosed, fan-cooled)
• 2 pole
• IP55 protection motor, insulation class F
• Standard voltage
• Single-phase:
• 220-240 V ± 5% at 50 Hz (Thermal protection built into the motor)
• 220-230 V ± 5% at 60 Hz (Thermal protection built into the motor)
• Three-phase:
• 220-240 V / 380-415 V ±5 % up to 3 kW at 50 Hz (Thermal protection to be provided into the starter panel by the installer)
• 380-415 V / 660-690 V ±5 % from 4 kW at 50 Hz (Thermal protection to be provided into the starter panel by the installer)
• 220-230 V / 380-400 V ±5 % up to 3 kW 60 Hz (Thermal protection to be provided into the starter panel by the installer)
• Frequency of starts:
• Max. 60 starts/hour for motor power up to 3 kW (with min. 1 minute resting time)
• Max. 30 starts/hour for motor power from 4 kW (with min. 2 minute resting time)