From adhesives to chemicals, coatings to inks—general manufacturing environments demand pumping solutions that can handle a wide range of fluids with reliability and precision. That’s where ARO® Air Operated Double Diaphragm (AODD) Pumps excel.
Engineered to keep your operations running smoothly, ARO® pumps are built for tough, continuous-duty applications. Their modular, bolted construction ensures fast maintenance and fewer leaks, while broad material compatibility makes them a go-to solution for transferring caustic or viscous fluids.
Whether you’re blending batches, dispensing solvents, or circulating coolants, ARO® offers the performance and durability to help you streamline production and reduce downtime.
Key Benefits for Manufacturers:
Handles a wide range of fluids—abrasive, corrosive, viscous
Tencarva Machinery Company is an authorized distributor of ARO® Pumps, delivering reliable, high-performance fluid handling solutions for general manufacturing and industrial applications.
With 50+ expert engineers, ISO 9001-certified manufacturing partners, and full-service repair centers across 17 states, Tencarva provides complete system design, precise ARO® pump selection, and ongoing technical support to ensure consistent, efficient performance—even in the most demanding fluid transfer environments.
Maximize Uptime with ARO® Pumps Built for Manufacturing
Trust Tencarva Machinery Company to help you select the right ARO® Air Operated Diaphragm Pump for your toughest general manufacturing or industrial fluid handling challenge. Contact us today to upgrade your system with proven reliability and performance.
Complete the following form, so we can help you with the best solution for your application. We're at your service.
ARO 2″ stainless steel EVO Series™ pump offers maximum energy efficiency in wastewater metering application
The EVO Series™ Electric Diaphragm Pump was placed in a manufacturing facility producing chemicals and other equipment for the commercial cleaning industry.
Products being manufactured at the facility include: dish washing detergent, hand cleaners, sanitizers, disinfectants, floor cleaners, strippers, finishers, sealers for stone, tile, and grout, degreasers, glass cleaners, laundry detergents and other chemicals and equipment.
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: 1,600
Average Speed: 40 pump rpm/4.2 rad/s (17 Hz)
Average Torque: 10% achieving average, 26% max peak
Current Flow: average 3.6 amps, achieving max 5.4 amps
The customer highlighted the following benefits noted after four 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
Significant noise reduction
Pump has not required any maintenance, thus reducing costs and resources
The EVO Series™ Electric Diaphragm Pump saved the customer money by maximizing energy efficiency and minimizing maintenance costs.
The EVO Series™ Electric Diaphragm Pump offers an exclusive set of proven technologies packaged into one breakthrough pump.
Top pump efficiency
Low pulsation
One of the best solution for dosing applications
High efficiency for companies that use activated carbon in WWT applications
Choose a top efficiency pump for heavy-duty application
Cardboard manufacturing is a high energy-consuming industry, due to the large volumes required and the characteristic of the raw material used, some manufactures are forced to work 24/7 at a heavy duty industrial rate.
Starch glue feeding and recirculating line is one of those rigorous manufacturing processes. Starch Glue is used to bond different paper layers in the corrugated cardboard production, the quality of glue is crucial for producing high quality cardboard.
Starch glue has to flow continuously to avoid filming, it is highly sensitive to overheating and high shear. For those reasons, diaphragm pumps have always been the “pump of choice” for this application. However, with energy prices increasing and the environmental impact of energy usage itself, more focus has been directed towards reducing energy processing costs. Air production in manufacturing plants is one of if not the most expensive energies to use in production.
In these particular success stories, customers were intrigued about an electric style pump for their particular applications and the EVO Series Electric Diaphragm was the perfect answer!
Customer Type
Both of these stories come from large companies producing corrugated cardboard all the way to producing cardboard boxes for various industries. They produce boxes by starting from paper rolls and producing their own corrugated cardboard. Both customers have multiple corrugating machines running simultaneously at variable duty according to production needs.
The Application
Customer 1: Two different types of starch glue,
single-faced and double-faced layers, both lines are feeding simultaneously 3 corrugating machines that run at different duties according to production needs. Customer 2: One type of starch glue is used to feed 4 corrugating machines running simultaneously at different load according to production needs
Both customers where looking for an electric solution
Both customers where looking for an electric solution able to meet the following criteria:
• High efficiency to reduce energy consumption
• Handle variable viscous fluids, Starch glue viscosity could vary between 1500 and 3000 cPs
• Gentle pumping, to avoid damaging the quality of the glue and consequently damage to the finished product
• Self-regulating, to adapt to demand variation
• Pump to be easily integrated in the system for remote monitoring and control.
• Easy maintenance, to avoid long downtime and production loss
The Solution
Technical Observations
In addition to the advantages already described, customers experienced:
• Low noise operations: reduced noise compared to other positive displacement pumps
• Smoother flowrate to corrugating machines: thanks to its special three chamber design and precise torque
control, the pump is able to provide a consistant flowrate with little pulsation
• Incredible reduction of energy consumption: after a few weeks of operation, one of the customers calculated
their ROI of less than 14 months
Customer’s Testimonial
“When we installed the pump, we tested it by simulating a sudden increase of required flowrate at corrugating machines and we have been impressed on how the pumps react promptly without any loss of flowrate….the pumps are perfectly self regulating. There is no longer a need to change the pump set up when moving from full production load to recirculating load!
Glue Kitchen Manager at Customer 1
“Moving to to the EVO Series pump was a wonderful choice! One pump can actually do the job that two pumps were doing in the past! This allows us to run only one pump at a time, while having a stand-by pump ready to run if needed!
With EVO Series™, we are not only reducing our energy consumption but also increase our productivity rate by reducing at minimum our downtime and increasing maintenance intervals!
The safety and quality of cosmetic and pharmaceutical products is as important to us as it is to you. That’s why ARO engineers design our fluid handling equipment and powder pumps to meet stringent industry requirements for safety and sanitation.
Our sanitary diaphragm pumps are known worldwide for reliability and for leading the industry in total cost of ownership.
Our full range of sanitary pumps and packages are expertly designed for a variety of applications:
Personal care products such as lotions, hand sanitizers, shampoos and shower gels
Air Operated Control Solution with Liquid Level Sensing
The ARO® Automatic Dewatering System offers automatic on/off controls for Pro and EXP diaphragm pumps. A pneumatically controlled Liquid Level Sensor is used to easily control the fluid level within a desired range. The Automatic Dewatering System will limit the monitoring labor and reduce air consumption by avoiding dry running of the pump.
Featured
Simple design is easy to setup and use
All pneumatic operation eliminates electrical ignition source
High/Low level control maintains fluid between established levels
Reduces air consumption by avoiding pump dry running
Portable system with directly mounted liquid level sensor
It’s time to EVOlve your expectations of what a pump can do for you. The ARO EVO Series™ Electric Diaphragm Pump offers an exclusive set of proven technologies packaged into one breakthrough pump.
The all-electric diaphragm pump is changing the game in diaphragm pumping. First, it’s not a double diaphragm, rather it’s a tri-chambered diaphragm pump, and it uses a crankshaft-like piston method which is electric motor driven. It is a positive displacement pump like no other and it can handle anything that an air operated diaphragm pump can but even more efficiently. It can handle sludge, slurries, pastes, or anything that an air operated diaphragm pump can pump, but without the hassle of the usual drawbacks of needing air.
Integrated encoder
No maintenance gearbox
Sealless design – no dynamic seals that could allow hazardous fluids to enter the environment
Unique 3 chamber design
Innovative diaphragm developed exclusively for the EVO Series™ Electric Diaphragm Pump
Choice of 5 different materials of construction to handle the most aggressive and corrosive fluids. Select from stainless steel, cast iron, aluminum, polypropylene or conductive polypropylene.
Built-in control and monitoring capability
Can be controlled with a PLC
Built-in motor thermal protection
Extended maintenance cycle and smart maintenance schedule
Synthetic oil and filtration system for reliable performance over a wide range of temperatures
ARO exclusive AC gear motor available in standard (black) safety area version or hazardous duty (red) version
The unique EVO Series™ Electric Diaphragm Pump design provides the confidence to keep your people safe, your processes running and your operating costs down. ARO engineers put the pump through over 20,000 hours of relentless testing at full load conditions with a variety of fluids. The most grueling conditions were replicated in testing and trials to make sure these electric pumps would perform up to your highest expectations. The EVO Series™ pump delivers a flexible solution that can work in a wide variety of applications among the toughest conditions and requirements.
Complete the following form, so we can help you with the best solution for your application. We’re at your service.
