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Caleffi 521 Series MixCal™ Press: A Winning Combination

PR Caleffi 521 Thermostatic Mixing Valve with Press

The 521 Series adjustable thermostatic mixing valves are all new with Presscon™ fittings, designed to make installation and maintenance of the component fast, easy and efficient. 

The winning combination creates the perfect leak-proof seal and is available in ¾” press connections. These low lead valves are cUPC listed to ASSE 1017/CSA B125.3 for point-of-distribution in domestic water systems and radiant hydronic heating systems. 

CALEFFI – Creating innovative, superior performance products that help customers live comfortably and economically, while softening their impact on the environment. For more information, visit Caleffi’s Web site at, e-mail us, or call (414) 238-2360.


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