S.A. Armstrong Limited

A Series plate-and-frame heat exchangers
The new A Series plate-and-frame heat exchangers (PFHEs) have been tested by an accepted American Refrigeration Institute (ARI) laboratory and have been registered as ARI 400-certified systems. The ARI 400 standard provides a uniform basis for comparison of liquid-to-liquid heat exchangers (see www.aridirectory.org/ ari/llhe.php). In compliance with this standard, the ARI 400 certified PFHEs cannot deviate from the published performance data by more than 5% with regards to heat capacity, and by no more than 10% with regards to pressure drop. This industry standard gives engineers, owners and contractors confidence in products from ARI 400 certified suppliers.