Frequently Asked Questions

FILTERS, REGULATORS, LUBRICATORS

• Can someone change from a manual to an auto drain on an 18/28 series filter in the field?
  
• How do I properly size and determine feasible application of a filter, regulator or lubricator?
  
• When should I use an AtoMist lubricator instead of an EconOmist Lubricator?
  
• What is the difference between a relieving and a non-relieving regulator?
  
• When do the DP indicators that come standard with Wilkerson coalescing filters turn from green to red?
  
• How can I find the part number for the correct replacement element for my Wilkerson filter?
  
• How do I know which filter Replacement Element Kit to order?

AIR DRYERS

• How much water is in compressed air?
  
• How much water can be removed by drying compressed air?
  
• What's the best type of dryer?
  
• What type of filters are recommended for dryers?
  
• I have a refrigerated air dryer installed and it had been working fine, but suddenly I'm finding water
  in my compressed air, what's going on?

  Contact Wilkerson Support at (269) 629-2550 or fax (269) 629-2475 for specification assistance
  and application engineering. You can also send an email to pdnapps@parker.com.

• How do I write a specification to ensure I get the air dryer features I need?