Product category:
Pneumatic Actuators, Motors, Accessories
News Release from: Parker Hannifin | Subject: Parker Pneumatic and Maxam cylinders
Edited by the Engineeringtalk Editorial
Team on 19 June 2002
Pneumatic control for EMC shielded room
doors
A variety of pneumatic components are used to control the opening and closing of doors supplied with shielded rooms and anechoic chambers produced by MPE Technologies.
A control system featuring Parker Pneumatic and Maxam cylinders, control valve, pushbuttons, roller valve, reservoir and fittings, is specified to control the opening and closing of doors supplied with shielded rooms (Faraday cages) and anechoic chambers, produced by MPE Technologies for the safe testing of telecommunications products and equipment, such as mobile telephones MPE Technologies designs, manufactures, installs and tests shielded rooms and anechoic chambers for most of the major telecommunications and mobile telephone companies based in the UK, Scandinavia, Holland, Taiwan, China and Singapore
This article was originally published on Engineeringtalk on 20 Feb 2001 at 8.00am (UK)
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The rooms and chambers have a typical high performance of 100dB at 18GHz.
Steel doors to the rooms and chambers vary in size from 2 x 1 to 8 x 6m.
Each door is typically pneumatically latched by two door mounted Parker P1E pneumatic cylinders and operated by Parker pneumatic pushbuttons located either side of the door.
A Parker Pneumatic roller operated valve is mounted on the door frame.
The pneumatic control panel includes a 1/8 BSP Parker B3 Series, 5/2 control valve, logic equipment and reservoir.
The Parker P1E pneumatic cylinders - each with a 63mm bore and 60mm stroke - hold the door closed.
To enter the restricted area, the exterior pushbutton or is activated, the cylinders retract and allow the door to be opened.
When the door is fully closed, it depresses a Parker roller operated pneumatic valve which, in turn, operates the control valve and extends the cylinders which lock the door.
To exit the restricted area, the interior pushbutton is activated and the procedure is repeated.
The Parker Pneumatic control system includes a fail-safe procedure: in the event of main air supply failure, the Maxam pressure switch operates and the cylinders retract to automatically unlock the door from an air supply stored in the reservoir. Request a free brochure from Parker Hannifin ...
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