Quality Control & Certifications

We are proud of the quality we build into every one of our guided piston relief valves. For quality assurance, all metal parts including housings, flanges, internal pistons, bolts, caps, lock nuts, bonnets, stop rings, etc. are manufactured, machined, stamped, and assembled in our factory and made in the USA.


This attention to quality has resulted in three Certificates of Achievement and receipt of our Canadian Registration Number (CRN) from the TSSA for the following provinces: