Delta Controls prides itself on being able to provide custom engineered solutions to solve specific application problems. If there isn’t an off the shelf solution from our wide range of available options then Delta’s experienced engineering team are here to help.

Engineering specials can range from simple changes, such as alternative process connections or wetted part materials, to more complex solutions such as special purpose chemical seals or specific performance enhancements.

In one such recent example, Delta Controls was approached by a customer in the nuclear industry who had a very specific problem.

This customer was trying to measure the differential pressure across a filter that was being used in a pipeline taking cooling water from a nearby lake. Due to the tight deadbands required, the customer had thought that a differential pressure switch with chemical seals would not be suitable and opted for a product with standard process connections instead.

Unfortunately, due to a particularly high mineral content in the lake water, these switches were becoming regularly blocked by deposits building up inside the process connection. As a result, the customer was having to regularly replace these switches with new ones. That was until they were introduced to Delta.

Delta’s engineers were able to solve this problem by designing a special pair of chemical seals that encorporated a flushing port to enable the area in contact with the lake water to be washed out, but that also minimized the effect they had on the switch’s deadband.

If you have a problem application, talk to the Switch experts at Delta Controls.