Proper system logic control and equipment sequencing is extremely important to all pneumatic conveying systems. Just as important would be proper location of key safety and monitoring devices. Incorrect control or location of the equipment can lead to maintenance problems or cause component failures. Unnecessary procedures can lead to a decrease in overall transfer rates. Make sure that your system has been checked out for proper operating function. 

Dense phase systems, sometimes referred to as "plug-flow" are particularly susceptible to airflow "tuning" problems because they will only function properly within a very small operating window. A dense phase system which is not properly tuned will create excessive pipe reaction forces onto the piping structure and supports. Excessive forces can destroy a piping system in a very short time. Incorrect airflows may also lead to plugged convey lines. These conditions can be very frustrating for the system operator. A properly designed dense phase convey system can be built to operate for many years, trouble-free, with the proper personnel training and maintenance scheduling.

You've made the decision that something needs to be done to your convey system. Rather than spend your own time trying to solve the problem, you should consult with the expertise of several pneumatic conveying suppliers and consultants. There is always more than one way to get your product from point A to point B. Finding the best way could save you thousands of dollars.

Before  you decide on a particular pneumatic conveying supplier for your plant, find out how much experience they have handling your product type. Different products can handle very differently in the same system. Some suppliers are more specialized than others with certain products. If you want to avoid common mistakes, stick with a supplier that has some experience. Don't be afraid to ask for references, too.

Discuss your application with the supplier. Ask tough, detailed questions about the suitability of their products. Ask to discuss your application with a process engineer. If you're not familiar with the supplier's equipment, then you should ask to see drawings or, better yet, an actual component before you commit to purchasing from them. There is a wide degree of quality standards and special features between suppliers.

Every supplier has a different idea of what should be included in a standard package assembly. Some will only include a bare minimum and some will furnish more than what you may require. Either way, you need to check those proposals carefully because you will only get what is described in the quotation and nothing more.  If you are not comfortable with what they have to offer, then you should look elsewhere.

When you purchase a system ( a group of components that must work together in order to function ), a good supplier will give you a function diagram or written sequence of operation. If you have purchased an electrical control panel as part of the system, then this is a "must have". Don't forget to get your electrical people involved to look for compatibility with your existing equipment.

If your not happy with the performance of your new convey system, just let the supplier  know. Most reputable companies are willing to work with you rather than walk away from you when you are having problems.

When you purchase a new system, demand a complete and accurate IOM manual from the supplier  which includes every piece of equipment that you have purchased. It should also include a spare parts list with pricing and delivery. You should expect no less from them.

When you get your IOM manual, read it thoroughly. There is always some important information about the equipment's operation that must be checked before start-up. Also, make yourself a list of items that must be checked on a routine basis. This will insure that your warranty will be valid if problems arise later.

Whether you're buying a component or a system, get those warranties in writing before you buy. If you don't like the warranty coverage or the Terms and Conditions, let them know. Some companies are somewhat flexible in their policies. In addition, a good pneumatic conveying supplier will back up their system design with a performance guarantee on reaching a minimum convey rate.