Which two guidelines are correct for mounting a pneumatic filter?

Which two guidelines are correct for mounting a pneumatic filter?

• A. Before the lubricator and Mount vertical
• B. After the lubricator and Mount horizontal
• C. Before the regulator and Mount vertical
• D. After the regulator and Mount horizontal

Answer: (A)

The idea is to place filtration before lubrication and to mount the filter vertically. By putting the filter upstream of the lubricator, you keep oil from the lubricator from clogging or contaminating the filter element, so clean air is delivered downstream to the regulator and actuators. Mounting the unit vertically uses gravity to help condensate drain away from the filter element and toward the drain, which reduces pooling and makes maintenance easier. Horizontal mounting or placing the filter after the lubricator would hinder drainage and increase the chance of oil or condensate affecting filtration, so the recommended practice is to mount the filter before the lubricator and in a vertical orientation.

The idea is to place filtration before lubrication and to mount the filter vertically. By putting the filter upstream of the lubricator, you keep oil from the lubricator from clogging or contaminating the filter element, so clean air is delivered downstream to the regulator and actuators. Mounting the unit vertically uses gravity to help condensate drain away from the filter element and toward the drain, which reduces pooling and makes maintenance easier. Horizontal mounting or placing the filter after the lubricator would hinder drainage and increase the chance of oil or condensate affecting filtration, so the recommended practice is to mount the filter before the lubricator and in a vertical orientation.