What media can a valveless plunger pump measure?
From strong acids to silicone oil, from 0.3g to 500ml: A practical test of the fluid compatibility of a "valveless plunger pump"
In the chemical, biopharmaceutical, or electronic liquid injection fields, the biggest headache isn't flow rate accuracy, but rather, "Can this pump pump this kind of liquid?"
When faced with 46# machine oil, acetone, hydrochloric acid, dichloromethane, and even organic solvents that swell ordinary plastics, traditional gear pumps or
peristaltic pumps often leak, corrode, or seize up.
We tested a valveless plunger pump and the results were surprising—it can handle almost all of the following media:
✅ Strong acids and alkalis (no particles)
Tested media: 3%-98% nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid, sodium hydroxide, ammonia, perchloric acid
Performance: Wetted parts are made of corrosion-resistant ceramic/PTFE/fluororubber, with no leaks or corrosion marks during continuous operation.
✅ Organic solvents & corrosive liquids
Tested media: Xylene, toluene, acetone, ethyl acetate, dichloromethane, methanol, ethanol, isocyanate, methyltrichlorosilane
Performance: For solvents that "swell" (such as dichloromethane), a special sealing design prevents the pump body from expanding and seizing.
✅ High viscosity & viscous liquids
Tested media: 46# hydraulic oil, damping oil, silicone oil, glycerin, syrup, AB glue, gelatin solution, drawing oil
Performance: Even with a viscosity similar to edible oil, it can still stably achieve a single drip supply of 0.3g/2 seconds.
✅ Easily Crystallizing/Volatile Liquids
Tested Media: Silica sol, protein solution, mosquito repellent liquid, rosin, electrolyte, curing agent
Performance: Valveless design reduces crystallization stagnation; 24-hour continuous spray of 500ml without clogging
✅ Everyday & Special Liquids
Tested Media: Pure water, ultrapure water, deionized water, milk, sugar water, perfume, ink, fluorescent agent, hyaluronic acid, protein solution, ink, paint
Performance: For "water-like" liquids, the discharge rate is infinitely adjustable within the range of 0-0.13cc, meeting the precision requirements for laboratory R&D
and industrial small-dose filling
Key Parameters Adapted to Your Scenarios
Needs: Valveless plunger pump for small single doses: Minimum single dose 0.3g/2 seconds (adjustable to 0.13cc)
Continuous Spraying: 24-hour 500ml spray, low temperature rise, no downtime
Media Diversity: No need to change pumps; media can be switched after cleaning (water → oil → solvent)
Corrosion/Swelling Wetted Materials: Zirconia Ceramic/Sapphire/PTFE/FFKM
If you are looking for a pump that: can deliver 46# machine oil, acetone, and hydrochloric acid; is resistant to solvent swelling and strong alkali crystallization; and can
handle a single micro-volume delivery of 0.3g to a continuous 24-hour flow of 500ml; then a valveless plunger pump is currently the most worthwhile general-purpose liquid transfer solution.
If you have specific selection and pricing requirements for precision valveless plunger pumps for liquid transfer, please contact CIXIFM Winny:
WhatsApp: 008618049841995
