Description Description The Haskel 27741-4 relief valve is a high-pressure valve designed for gas and liquid applications where safety and reliability are critical. The valve features a stainless steel body and a nylon seal, and can handle pressures from 1000 to 10000 PSIG. The valve has a repeatable pressure release design that minimizes the need for frequent recalibration, reducing maintenance and downtime costs. The valve has 1/4 NPT ports for easy installation and connection. The Haskel 27741-4 relief valve is precalibrated, tagged and locked in at the factory based on customer requirements. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories