BENDIX part description

Product Description

Air Dryer

Features & Benefits

  • Designed to collect and remove moisture as well as solid, liquid, and vapor contaminants from the air before entering the air brake system
  • An integrated air supply system that provides heavy duty vehicles with an integrated air dryer, purge reservoir, governor, and various charging valve components in a module
  • Consists of a “spin on” desiccant cartridge that is secured to a base assembly, which contains a delivery check valve assembly, safety valve, heater and thermostat assembly, threaded air connections, and the purge valve assembly
  • With pressure protection valves designed to protect each reservoir from a pressure loss in an air accessory or a pressure loss in the other reservoir
  • Has a purge control channel drain that allows any condensation in the air dryer
  • Operates alternately between the charge cycle and the purge cycle
  • Offers ease of serviceability since replaceable assemblies can be serviced without the need to remove the air dryer from the vehicle
  • Extends the service life of the air brake system components
  • Helps prevent air brake system freeze up, avoid costly downtime, and reduce maintenance costs

Courtesy of Bendix – All rights reserved

Bendix AD-IS Air Brake Dryer

The Bendix AD-IS air brake dryer makes sure only clean, dry air gets into the different components of your air brake system. With this integral solution air dryer, you don’t have to manually drain the reservoirs on a daily basis just to keep your air brake system working at its best.

Product Attributes

New Or Remanufactured New
Series AD-IS
Air Dryer Type Stand-Alone 
AUX 1 Delivery Opening Pressure 112 PSI 
AUX 1 Delivery Port 4 Ports with 1/4-18 NPT 
AUX 2 Delivery Opening Pressure 112 PSI 
AUX 2 Delivery Port 1/4-18 NPT 
Cartridge Thread M39 x 1.5-6H RH 
Cartridge Type Standard 
Cautionary Note(s) Pressure protection valve configs are not interchangeable. 
Clearance to Remove Cartridge 1.00 in.
Cut-In Pressure 110 PSI 
Cut-Out Pressure 130 PSI 
Governor Included Yes 
Governor Reservoir Port 1/8-27 NPT (Plugged) 
Governor Type Non-Adjustable 
Governor Unloader Port 1/8-27 NPT x 1/4 Tube (Compression / 90° Elbow) 
Heater / Thermostat Rating 12V / 90W 
Heater Connector Color White 
Heater Connector Type Metri-Pack 280 Series 2-Way Sealed Connector (Male) 
Minimum Operating Temperature -40 °F (-40 °C) 
Mounting Mount to Purge Reservoir (Not Included) 
Pressure Protection Valve Configuration 4 in. Parallel 
PRI Delivery Opening Pressure 112 PSI 
PRI Delivery Port 21 1/4-18 NPT 
Purge Exhaust Port Standard 
Purge Valve Type Hard Seat 
Safety Valve Opening Pressure 153 PSI 
SEC Delivery Opening Pressure 103 PSI 
SEC Delivery Port 22 1/4-18 NPT 
Supply Port 1/2-14 NPT 

Additional Information

Country of Origin (Primary) MX
Harmonized Tariff Code (HTS) 8421398015
VMRS Code 013010252
A part of the Knorr-Bremse Group, Bendix® provides the automotive and truck parts industry with cutting-edge energy management solutions, active safety technologies, and air brake charging for tractors, buses, commercial vehicles, trailers, as well as medium- and heavy-duty trucks throughout North America. Headquartered in Elyria, Ohio, Bendix Commercial Vehicle Systems employs over 3,200 people who work hand in hand for the accomplishment of the brand's vision: "to become the leading worldwide supplier of active vehicle safety systems within the commercial vehicle industry." This brand takes pride in being the first to introduce many notable parts and technologies to the North American commercial vehicle market. Among these many firsts are the groundbreaking air brake system technologies such as air dryers, air compressors, and ABS. At Bendix, exceeding industry standards is a strict requirement. 

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