Walk through most manufacturing floors and the noise tells the story. A constant roar from equipment, conversations shouted across the line, and, all too often, pump systems that hit ear-piercing levels. Many air-operated double-diaphragm (AODD) pumps operate at over 100 decibels, well above OSHA's safe exposure threshold of 90 dB and far beyond NIOSH's more conservative 85 dB guideline.
That level of noise affects communication, contributes to operator fatigue, and compromises compliance across a wide range of industries, from ceramics and coatings to specialty chemicals and lithium battery manufacturing.
For maintenance and facility managers, noisy pumps add to the daily grind — introducing distractions, raising risks, and often pushing teams to work around their equipment.
Cognito’s electric double diaphragm (EODD) pumps are engineered differently: to be efficient and intentionally quieter. Even under the most demanding flow and pressure conditions, Cognito EODD pumps operate below 80 dB.
Unlike traditional AODD pumps, which exhaust compressed air to the atmosphere (a process that produces sharp, high-decibel bursts), Cognito EODD units don’t rely on compressed air at all. That means no loud discharge, no mufflers that can clog or ice up, and no airborne oil mist.
For facilities where operations run within four walls, that matters. A quieter floor means easier communication, better concentration, and a safer, more productive environment.
Cognito’s sound reduction is a part of the design. Each unit features:
These design decisions result in consistent operation without compromising throughput or durability.
Noise affects comfort and shapes safety, compliance, and even retention. Sustained exposure to levels above 85 dB can lead to hearing loss, and OSHA enforces penalties for non-compliance.
Loud pumps add another point of audit concern. They also disrupt team communication, increase stress, and contribute to faster operator burnout.
Yet, noise is often overlooked as a performance metric, though It shouldn’t be. Quieter pumps:
The bonus? Customers in high-noise environments, like paper manufacturing, have specifically called out the difference they’ve heard when replacing older pumps with Cognito EODD units.
In industrial environments, some assume that loud means strong. But Cognito proves otherwise.
Cognito EODD pumps maintain strong discharge pressures, run dry without damage, and handle solids and abrasive fluids with ease. That kind of performance doesn’t need to shout.
From reduced noise and energy use to simplified maintenance and remote monitoring, Cognito pumps help users move from managing daily problems to solving tomorrow’s challenges.
If you're still using traditional AODD pumps, it might be time to ask: Is the volume worth the cost? Cognito pumps offer a proven, quieter alternative; one that keeps you compliant, efficient, and ahead of the curve.
Schedule a live 60-minute live training session with a Cognito expert to explore product features, operational best practices, and get your questions answered in real time. Can’t find a training date that works? Contact us to connect with a Cognito team member.
Pump specifications may vary by region. Please contact your local sales team for more information.