Proportional pneumatic controller

April 4, 2003
/ Print / Reprints /
/ Text Size+

This new closed-loop, proportional pneumatic controller for use with air-loaded valves is designed for processes that depend on precise pressure control. The Series PRS maintains downstream pressure with virtually no deviation in spite of large variations in flow rate, unlike ordinary regulators. The PRS , called the Stabilizer, features a Teflon diaphragm in a thermoplastic connection, with no wetted metals or elastomers, specifically for use with ultra-pure deionized water systems of highly corrosive chemicals. It is simply installed in the piping system at the desired point of control, and connected to the regulator with common square-in. pneumatic tubing. An adjusting screw is used to dial in the desired pre ssure. Whenever pressure at the diaphragm exceeds the set point, the Stabilizer reduces control pressure to the regulator, which in turn begins to close and reduce process pressure; control pressure is increased if process pressure falls below the set point. Plast-O-Matic Valves, Inc., Cedar Grove, NJ 07009. Tel (973) 256-3000; fax (973) 256-4745;
Product 236

Did you enjoy this article? Click here to subscribe to Food Engineering Magazine.

You must login or register in order to post a comment.



Image Galleries

Fabulous Food Plant: Paramount Citrus

Learn more about this fabulous food plant in Food Engineering's article, found here.


Burns & McDonnell project manager RJ Hope and senior project engineer Justin Hamilton discuss the distinctions between Food Safety and Food Defense as well as the implications for food manufacturers of the Food Safety Modernization Act.
More Podcasts


Food Engineering Magazine

Food engineering magazine 2014 april cover

2014 April

Catch a preview of the Powder and Bulk Show in this April 2014 edition of Food Engineering. Also, be sure to check out a coffee stick making a real stir and a major advancement in the the pet food industry.
Table Of Contents Subscribe


Food Authentication Using Bioorganic Molecules

This text provides critical tools and data needed to augment routine food analysis and enhance food safety by aiding in the detection of counterfeit, and potentially deleterious, foods.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Food Master

Food Master Cover 2014Food Master 2014 is now available!


Where the buying process begins in the food and beverage manufacturing market. 

Visit to learn more.


FE recent tweets