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    • AIR DISTRIBUTION MANIFOLDS
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      • Vacuum
      • Compressors
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    • HYDRAULIC
    • UTILITY SERVICES >
      • Water Metering
      • Gas Metering and Pressure Control
      • Heat
      • Kemper Hygiene Systems
    • GAS DETECTION SOLUTIONS
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      • Temperature, Humidity, Dewpoint and Water Activity
      • Level
      • Flow Instruments
      • Instrument Fittings and Valves
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Success Story Of The Month: ARO

10/3/2022

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Picture
Industry: Wastewater Treatment
Customer's application: Discharge

​
THE APPLICATION 
The large commercial cleaning product manufacturer required the following features in their wastewater discharge pump:
• The ability to maintain consistent flow rates at varying head pressures
• Constant operation at multiple speeds
• Precise metering of wastewater into the municipal sewer system
• The ability to quickly increase flow to discharge a large volume of wastewater based on system requirements
The EVO Series™ Electric Diaphragm Pump was installed to push a precise amount of wastewater through a filtration system with varying pressures. The pump discharges the exact amount of treated wastewater based on the allowable flow rate dictated by the municipality. The pump provides “sprint” capability to discharge large amounts of wastewater if it is required by the treatment process.

OPERATING CONDITIONS 
• Running hours: 1600
• Speed: avg 40 pump rpm/4.2 rad/s-17 Hz
• Torque avg: 10% achieving avg 26% max peak
• Current flow: avg 3.6 amps achieving max 5.4 amps
• Pressure avg: 1.1 bar
• Flow rate avg: 113.6 l/min

TECHNICAL DATA SPECIFICATIONS
• Inlet Configuration: 2” Hose, 1,8m vertical, 9,1m hose
• Outlet Configuration: 2” Hose, 9,1m having part of piping flooded into a filtration unit at ground level
• Flow: 30 gpm /113.6 l/min during the day; 6.8 gpm /25.7 l/mi) in the evening
• Duty Cycle: Continuous Duty
The duty cycle rate has been 60% assuming VFD is powered mea  ing average working hours are between
14-16 hours.
Picture
PRODUCTS SOLD
Product range: EVO Electric Diaphragm Pumps
Product name: 2'' stainless steel with PTFE elastomers

ARO® DIAPHRAGM PUMP ADVANTAGES
Specifications of the pump installed:
• 2” EVO Series™ Electric Diaphragm Pump
• Stainless Steel
• PTFE Diaphragm and Balls
The customer highlighted the following benefits noted after 4 months of operation:
• Low pulsation results in significant output efficiency
• Ability to perform consistently at different speeds to be able to maximize the customer’s output requirements
• Signifiant noise reduction
• Pump has not required any maintenance reducing costs and resources
The EVO Series™ Electric Diaphragm Pump saved the customer money by maximizing energy efficiency and minimizing maintenance costs.
 
CUSTOMER'S TESTIMONIAL
“This pump is quiet! We do not even notice its running except for the occasional check ball shaking. So much quieter than the positive displacement pump installed previously.”
“The pump runs great - we have over 1,500 hours of runtime and have not had to touch it yet.”
“I am excited to calculate the energy savings compared to our previously installed positive displacement pumps.”
“One thing we noticed is that our wastewater output went down significantly due to the low pulsation compared to the previous pump. The higher pulsation caused higher readings on the meter and we are restricted in the amount of wastewater we can discharge. The minimal pulsation of the EVO Series pump saved us a lot of money!”



For more information contact Sean Brennan sb@hccl.ie
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