Introduction
We engineered our MAC Procheck range of high-performance check valves to deliver rugged, reliable backflow protection across your most demanding industrial environments. Built to withstand volatile media and high-velocity process lines, we manufacture our Procheck series using heavy-duty Cast Carbon Steel (WCB) for high-temperature service or premium, corrosion-resistant 316 Stainless Steel (316SS) bodies.
To ensure tight shutoff and exceptional longevity under harsh conditions, we provide versatile metal-to-metal seating configurations tailored to your process: from reliable 304 and 316 stainless steel, to durable 13Cr (13% Chrome), up to cobalt-based Stellite alloy hard facing for extreme erosion and high-temperature severe service. Fully rated for ASME 150LB, 300LB, and 600LB pressure classes, our Procheck line gives you a robust, precision-machined fluid control solution that balances premium material specifications with competitive project economics.
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