De Dietrich's creation dates back to 1684, they have evolved to become a world leader in the conception, design and manufacture of glass-lined equipment.
In 2000 De Dietrich Process Systems, Inc. (DDPS) purchased QVF Process Systems, Inc. which had previously purchased Schott Process Systems.  

Today, Sentinel Process Systems, Inc. remains as the largest stocking Distributor of the QVF and Schott Brands of process borosilicate glass, equipment and hardware.  Sentinel is a premier value added reseller of their products.  Our inventory totals over $250,000.00 and we have added capabilities with repair and design capabilities.  

Sentinel's history in the process glass industry dates back to 1950 when we started with Corning Glass Works as a Disrtibutor and Systems Integrater.  We continue to add value for our customers with local inventories and application expertise.  Our engineers and customer service people have unique knowledge of the individual parts and pieces our customers require to operate.  ,

We can supply your complete needs from a DICH gasket to a 500 square foot shell and tube heat exchanger.  We work closely with De Dietrich to provide our customers solutions to some of their most difficult process problems. 

Our inventories include Gaskets, Flanges, World Product Range (WPR), KF, Beaded and even old Corning Style Domestic Conical.