PUMPS FOR THE PRINTING INDUSTRY

 

The pumps used for pumping printing ink are commonly double diaphragm, peristaltic and centrifugal. Each has its own advantage and disadvantages. For pumping cold seal and laquers peristaltic and double diaphragm pumps are more commonly used due to the viscosity.

 

In the UK inks are predominantly solvent based therefore the pumps are required to ATEX approved. All 3 pump types are available ATEX approved so this does not normally cause a problem.

When specifying double diaphragm pumps we use DEPA,these are particularly good because of a new long lasting PTFE diaphragm which lasts approximately 8 times longer than standard PTFE and because they have a very quiet and efficient air valve.

For persitaltic pumps we use ELRO which are available as ATEX and Non-ATEX and work very well with cold seal and other higher viscosity liquids.

There are several centrifugal pump brands available including CEMP, Spandau and Powerwise. We offer these to suit the application.

Diaphragm Pumps		Peristaltic Pumps		Centrifugal Pumps
Pros	Cons	Pros	Cons	Pros	Cons
Low cost	Ink Surge	Excellent Suction	Higher Price	Smooth Flow	Heavier
Lightweight	Higher Maintenance	Smoother Flow	Heavier	Low maintenance	More to clean
Compact	Noise	High Viscosities	Lower Flows	Quiet
Excellent Suction		Quiet		High Flows
Variable Speed
High Discharge Hd
Easier to clean
High Viscosities