Yes, but prior to making a pump selection you need to know if the fluid is a solvent or water-based product. What is the viscosity and temperature of the product? Generally if the fluid is solvent based, a good choice is nylon or aluminum models with PTFE elastomers. When pumping chlorinated solvents, 316 SS models are the best choice.
If it pours, you can pump it.
A. Use large suction lines, up to three times the size of the pump ports.
B. Position the pump as close to (or below) the level of the fluid as possible.
C. Start the fluid slowly using an air line valve. Set the air pressure and crack the valve open slowly.
Pumps that are rated up to 200°F are the PVDF models and all of the metal pumps. Check your chemical compatibility chart for compatibility.
All 1/4”, 3/8” and 1/2” pumps can be configured at the factory for dual manifolds.
A. Ask what materials are presently being used to transfer the fluid or if there is a manufacturer’s recommendation that is on the fluid container, etc.
B. If there is no other information on this chemical, you will have to check with the manufacturer of the fluid and find out what is recommended.
C. Never guess on the chemical compatibility of a particular material.
If the pump is flooded, fluids with high specific gravity may exceed the pump suction limitations of 10psi. If the pump is above the level of the fluid, high specific gravity will limit suction lift.
We do not recommend that anything other than ‘A’ rated combinations be used. If you select a chemical to material rating of ‘B’ the warranty is void.
Yes. This can be done with conductive plastic pumps via the grounding lugs. If you are not using a conductive plastic pump then ground the fluid through a metallic pipe nipple at both the suction and discharge ports. Metal pumps should also be grounded.
Since all pumps use natural polypropylene you can pump hydrofluoric acid after consulting a chemical guide for concentration and temperature limits.
That depends on the application. Pressure, average hours in service, and temperature all affect the flow of plastic. Pumps need tightening if leakage should occur. Tightening should be part of any preventive maintenance program and should be based on the service duty of the pump.
The degree symbol means degrees baume. In this case the 66° is actually 98% in strength. You will find this symbol often used when describing sulfuric acid.
Proceed with caution. Individual ratings may or may not be appropriate for a chemical cocktail. Again, is the fluid currently being transferred successfully using a particular set of materials?
Our All-PũR® model has electropolished and passivated 316SS and FDA approved elastomers for use in food and sanitary applications.
Yes. If a diaphragm should rupture, the exhaust should always be piped to a control area — a place for safe handling or back to the tank — since fluid will enter the air system if the diaphragm is breached. Also, never forget to wear protection for eyes, lungs and skin when near hazardous fluids.
No, never use air line lubrication.
It is similar to that of Buna-N (Nitrile).
Polypropylene is not resistant to UV rays. Also, polypropylene is limited to use in temperatures over 32°F. For this type of application it is best to use a PVDF model, a metal model or shroud and insulate your polypropylene model.
No. The pumps will start leaking, diaphragms may bulge and inner plates may bend.
You can regulate the flow of a diaphragm pump three ways. Reduce or increase the air pressure, making sure that you are within the operating limits of the pump. You can increase or decrease the amount of air volume going to the pump via a valve on the air line and finally, a valve on the fluid discharge may be opened or closed. NEVER restrict fluid suction lines!
Yes, if the fluid is compatible with the pump housing and fasteners and if you pipe the exhaust above the level of the fluid.