TECHNICAL TIPS FOR BETTER PERFORMANCE OF YOUR BOMBA PNEUMATICS
Below we share 10 technical tips to get the best performance from your pneumatic diaphragm pump. Check it out:
1) Always keep a repair kit on hand.
There is no list of recommended replacement parts, but it would be best to always keep a fluid side and air side repair kit on hand for all pumps.
These kits are usually stocked with wear parts, and can fix most minor malfunctions to keep your pumps running.
2) Air operated diaphragm pumps are designed to have gravity assistance.
Use these tips to experience optimal performance.
the. Install pumps with “feet on the ground”.
b. Keep the inlet and outlet vertical to each other.
w. The inlet must be at the bottom of the pump.
If you don't do this, they may not work.
3) The configuration number is the DNA of a bomb.
This is how you find the material your diaphragm, ball, seat, hose, etc. are made of.
Locate the configuration number on the metal label on the pump. Then use the manual to decode the number.
This tells you what material the pump is made of, the internal components, motor and other accessories.
4) AVOID dry diaphragm pump operation.
Being dry, the pump speed increases.
This adds wear and tear to your wet parts (diaphragms, balls, seats).
5) Choose a pump based on your flow rate.
The pump flow rate listed in the literature is the MAX flow rate under perfect conditions.
You will want to select a pump that can achieve the desired flow rate at the desired pressure.
To determine this, consult the performance charts for each pump.
6) Does your pump have any of the problems below?
• Faulty pumping
• Reduced performance
• Low flow rates
• High discharge pressure
You may have an incompatible hose for your pump size.
For best performance, we recommend that your suction and discharge line sizes are equal to or larger in size than your pump.
7) There are 4 metals typically used in the diaphragm
a) Aluminum
By far the most common. About 70% of all diaphragm pumps are aluminum. It's cheap, durable, lightweight, and works with a wide range of materials
b) Stainless steel
It has more abrasive and chemical resistance than aluminum, but is more expensive and heavier.
c) Cast or ductile iron
one. Often used in wastewater applications. Good abrasion resistance. Handles particles and solid materials well. More expensive than aluminum
d) Hastelloy
Not often seen in diaphragm pumps, it is quite cost prohibitive. It can be up to 6 times more expensive than stainless steel because of the high nickel content. Hastelloy is more PH and chemical resistant than stainless steel.
8) Plastic diaphragm pumps work very well in many applications. There are some applications where you will want to consider a metal pump before plastic.
a) Straight wastewater. Plastic pumps do not handle the abrasives in the wastewater pit.
b) Oil. Plastic pumps are chemically compatible with petroleum, but are more expensive than aluminum which handles petroleum well. Save money and use aluminum with petroleum.
9) Plastic pumps can be used in almost any application, but are they really better:
-
Chemical Processing
· Highly concentrated chemicals
· Semiconductor Industry
· Solvent transfer, as in discharge paint lines, for example
· Strong cleaning detergentsAnytime you are dealing with a chemical high on the acid or base scale, you will need to use a plastic pump.
PROS:
Plastics are a very versatile and compatible material. Almost any application could use a plastic pump.
There is no metal in the fluid path. This means that the plastic has great resistance to corrosion. Harsh caustic chemicals are no problem.
Plastic pumps are much lighter than metal pumps. If you need to move a pump around your facility consider going plastic.
CONTRAS:
Polypropylene is not a UV stable plastic. Left in the sun for too long and you will start to see scale. UV inhibitors add extra cost and reduce chemical compatibility. If using plastic pumps outdoors use PVDF, Kynar or conductive polypropylene.
If you pump in cold temperatures, be aware of the minimum operating temperatures of plastic pumps. When it gets too cold, you may experience fluid sections cracking. If you need temporary cold resistance look at metal pumps.
What other pros and cons have you experienced with plastic diaphragm pumps?
10: The 4 primary plastics used in wet sections of the diaphragm pump.
a) Polypropylene
For generic chemical transfer. It is the most common plastic used. About 35% of pump sales worldwide are polypropylene
b) PVDF (Kynar)
For use with highly concentrated oxidants or strong oxidants (such as bleach).
c) Conductive polypropylene
For use with generic chemical transfer in a volatile or explosive atmosphere. It is electrically conductive from the black carbon in the plastic. These pumps are ATEX rated for worldwide use and NEMA rated for use in North America.
d) Acetal (Delrin)
Conductive plastic typically used for volatile solvents. Most plastics are not compatible with solvents and will swell. This quickly leads to pump failure and leakage. Acetal is resistant to solvents and can pump flammable fluids.
Always count on the duplation, your reliable supplier for pneumatic pumps. Contact us at (48) 3438-8484 or email vendas@duplacao.com.br And talk to our experts.
