Evolving from the technology of the horizontal multistage pump EH, EHsp features a design innovation of a special elastic valve system allowing air, present in the system, to escape – suction height up to 7 meters in less than 5 minutes. During start, this elastic valve, which is located at the first stage, opens to allow air to escape out of the system and water to enter the pump. As soon as the pressure arrives at a certain point, the valve closes, and the pump reaches the required performance.
This makes the EHsp the only stainless steel AISI304 self-priming horizontal multistage pump in the market.
Features
- Compact close coupled design, robust and corrosion resistant
- Max suction lift capacity up to 7 m in less than 5 min
- Superior efficiency and performances
- 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
- Strong and leakproof motor ball bearing fitted in the motor
- Pumping of clear non-loaded fluids
- Mechanical seal Type E0 = carbon/ceramic/EPDM
Pump Specifications
- Flow:
- up to 8 m³/h at 50 Hz
- up to 8,5 m³/h at 60 Hz
- Head:
- up to 56 m at 50 Hz
- up to 77 m at 60 Hz
- Connections: Rp threaded for inlet and outlet
- Maximum working pressure: 10 bar
- Maximum ambient temperature: 40 °C
- Liquid temperature range: from 0 °C up to 35 °C
- 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 % (Thermal protection built into the motor)
- Three-phase: 220-240 V / 380-415 V ±5 % up to 3 kW (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)
