Design Engineering

AutomationDirect expands pneumatics product line


General DPN

AutomationDirect extended their NITRA line to include “several new series of products to help meet a broad range of pneumatic air supply pressure regulation and filtration applications.”

Each series is designed to work in stand-alone applications, but can also be assembled as a combination for additional components.

The AF series are particulate and moisture separation air filers available with 1/8 to 1inch NPT female port sizes for either a semi-automatic of automatic drain. The polycarbonate bowls are standard on 1/8 through ½-inch sizes and white metal bowl guards are provided for ¼- to ½ inch sizes. The ¾-inch and 1-inch sizes feature all-metal bowl construction.

The NITRA AR series of pneumatic air pressure regulators have adjustable pressure ranges of 20-130 psi or 7-60 psi. They have a locking pressure adjustment knob and integral pressure gauge.

The AFR series is a combination of both the AF and the NITRA AR series. They are available in 1/8-inch through 1-inch sizes, have all the features of the other two series and have a pressure range of 20-115 psi.


The AL series of mist-type air lubricators are available with 1/8-inch to 1inch NPT female port sixes and a lubrication rate adjustment with sight gauge. The ¾-inch and 1-inch sizes feature metal bowl construction.

The NITRA ARV pneumatic manual shut-off pressure relief valves are available with 1/8-inch to ½-inch female ports. The three-way, two-position design is used to shut off upstream pressure and relieve downstream pressure.

Also available are replaceable 40 micron filer elements. So when stricter filtration is required, an optional, customer-installable, five-micro element is available.

The AVP series, the AVS-3 series and the AVS-5 series are also available. For more information on these and other NITRA line products, visit




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