The Allen-Bradley 836T-T256JX81X15 controller is an 836 Pressure Controls device. It has been manufactured to accommodate traditional industrial pressure control needs. It is used for transportation and other heavy duty applications and it is used with pneumatic and hydraulic system applications. It is an electromechanical unit with copper alloy bellows. It has an operating pressure of up to 650 PSI. It is manufactured with a NEMA Type 1, 4, and 13 enclosure rated for industrial use. The unit comes with independently adjustable operating and differential pressure ranges. The front of the unit has an operating pressure range adjustment screw that can be used to modify the operating pressure. The 836T-T256JX81X15 controller comes with a bracket for mounting. It can be mounted without removing the front cover, which helps to prevent foreign material from entering the unit. 

The operating temperature range for the Allen-Bradley 836T-T256JX81X15 controller should be set between -30 and 66 degrees Celsius. When not in use, the controller can be stored at a temperature between -30 and 93 degrees Celsius. It meets several standards including the UL508, UL698, CSA, and NEMA standards. The 836T-T256JX81X15 controller comes with a pressure range scale and indicator with metric units. This helps the operators to keep track of different pressure levels during operation. A blank label that the users can write on is present on the bottom of the controller. This pressure controller has a stainless steel cylinder and a piston assembly. The 836T-T256JX81X15 controller comes with a snap action precision switch with silver contacts. It provides friction-free movement and it offers consistent performance. The pressure controller piston can handle occasional surge pressure of up to 15,000 PSI. It uses a ⅜-inch NPT connector.