Peristaltic Pump

A peristaltic pump is a type of positive displacement pump used for pumping a variety of fluids, they are also commonly known as roller pumps. The fluid is contained within a flexible tube fitted inside a circular pump casing (though linear peristaltic pumps have been made). A rotor with a number of "rollers", "shoes", "wipers", or "lobes" attached to the external circumference of the rotor compresses the flexible tube. As the rotor turns, the part of the tube under compression is pinched closed (or "occludes") thus forcing the fluid to be pumped to move through the tube. Additionally, as the tube opens to its natural state after the passing of the cam ("restitution" or "resilience") fluid flow is induced to the pump. This process is called peristalsis and is used in many biological systems such as the gastrointestinal tract. Typically, there will be two or more rollers, or wipers, occluding the tube, trapping between them a body of fluid. The body of fluid is then transported, at ambient pressure, toward the pump outlet. Peristaltic pumps may run continuously, or they may be indexed through partial revolutions to deliver smaller amounts of fluid.

Main Content

Automated Hydroponic System

“An automated hydroponic system for growing strawberries using Grafana and InfluxDB. Description I’ve been interested in hydroponics for a while, so I built this as my thesis project. Building it was a fun and challenging process and, to my …

Self Sufficient Automated Greenhouse

“This greenhouse only needs quarterly maintenance, water refills, and heat maintenance to grow high-quality plants in the optimal conditions. Story Sometimes, taking care of plants is a big hassle. You need to give them just the right amount of sunlight …

Back to the Future Antigravity Water Drop - Seeeduino Lotus

“Is there an instant in which you want time to go backwards? Look closely at the water droplet. Is it dripping down or going up? Time is like a torrent, pushing people forward. Is there an instant in which you …

Self-sustaining Plant Wall

“Many busy professionals want to have plants in their home, but don’t have the time to maintain them. This self-watering planter maintains the plant by itself, requiring only a tank refill every other week. It waters the plants when …

Arduino Automatic Watering System

“First of hopefully many DIY arduino projects. I will show you how to build an automatic watering system. It will water plants for you when you not there. Although project is based on Arduino Nano there is no problem to …

DIY Arduino Cocktail Machine!

“Here’s an easy six-step tutorial on how to build your own Arduino cocktail machine! It is relatively easy and cheap to build so let’s begin! See the video below to see how the project was built. You can …

Crazy Arduino Hose Display

“How to make a unique display from a transparent hose and an Arduino UNO. This was a demo project for the Maker Faire Hannover 2016. The project was inspired by the work of the artist Julius Popp. We are using …

DIY Peristaltic Pump

“In this project we will have a look at peristaltic pumps and find out whether it makes sense to DIY our own version of it or whether we should just stick with the commercial buy option instead. Along the way …

DIY Arduino Slow-Drip Cold Brew Coffee Tower

“Cold brew coffee is taking the world by storm. I love cold brew coffee. Its rich, chocolatey, low acidity and really packs a punch! Fill up a small mug with this thick elixir and splash it with some milk, and …

Peristaltic Pump

“This project was inspired by the Waag Society’s Biohack Academy: https://biohackacademy.github.io/ https://github.com/biohackacademy One of the Biohack Academy’s components is a peristaltic pump. This Instructable builds on the model provided by adding a …