You’ve selected anair operated diaphragm pumpbecause of its idealflow rate, pressure, and durability. But there’s one problem… you need to install it upside down. This may be due to space requirements, but don't worry! There is a solution,spring loadeddiaphragm pumps!
Diaphragm pumpswith standard valve balls cannot work upside down because they require gravity to pull the valve balls back into their seats to create a seal. However, diaphragm pumps with spring loaded valves will work regardless of orientation and can run upside down.
Why Most Diaphragm Pumps Don’t Work Upside Down
To understand why the air operated pumps will not work upside down, you will need to understand the pumping principle.
When the membrane expands, a positive air displacement is created, which in turn pushes the valve ball upwards and allows the fluid to be pumped. However, when the membrane contracts, a closed seal is required to create suction.
How to Make a Diaphragm Pump Operate Upside Down
For adiaphragm pump to functioncorrectly upside down, the valve balls must be in place to create a seal. It is recommended to use a spring-loaded valve. When fluid is pumped, the valve gets pushed open and the springs expand, allowing fluid movement. When the diaphragm contracts and the flow of fluid temporarily slows, the tension in the spring will push the valve shut, creating a seal for suction.
The Solution
Verderairhas developed a great solution for pumps that must be installed and run upside down. Available todaythrough Global Pumps, the VA08 has spring loaded valves that allows the pump to create an airtight seal during pumping regardless of orientation.
The VA08 may be small, but it packs quite a punch with a maximum fluid flow of 19 L/min and a maximum air pressure of 7 bars or 101.5 psi.
Other features include:
- self-primingand dry running
- 杜高rability
- non-metallic
Due to its size, performance, and its ability to run upside down, theVerderair V08is a great choice for delivering chemical dosing, ink supplies, surface finishing, and detergent delivery. Check out ourair operated double diaphragm pumpsfor alternative options!
Contact our team todayfor a free quote, as well as advice or pump recommendations so you can choose the best air operated diaphragm pump to run upside down at your site.
