ULTRAVENT 25-ES: G ¾, G 1, ¾″ NPT & 1″ NPT

Precise pressure control from 5 to 500 mbar The ULTRAVENT 25-ES is a spring-loaded, direct-acting stainless-steel safety relief valve designed to vent excess gas pressure from receivers, pipelines and other equipment. Its compact, flow-optimised construction provides precise opening and closing behaviour while reliably protecting sensitive systems and processes. Every valve is 100% factory-tested, with reliability demonstrated over more than 100,000 operating cycles. Benefits Closes tightly again after activation Individually adjustable opening pressure from 5 to 500 mbar Stainless-steel construction for demanding gas applications Compact design High blow-off volume flow Reliability tested over 100,000 cycles Available with G ¾, G 1, ¾″ NPT or 1″ NPT female threads Pressure rating PN16 Free from oil and grease Suitable for pressure-control and pressure-maintaining applications Can also be used as a vacuum breaker TÜV-certified configurations available Options Pressure-maintaining configuration with a 100 μm stainless-steel inlet filter Optional 100 μm stainless-steel outlet strainer to help prevent external contamination PEEK valve disc: operating temperature from −30°C to +100°C Stainless-steel valve disc: operating temperature from −30°C to +270°C NBR, CR and other elastomer seals available FDA-approved elastomers and components available on request Approvals WITT quality management certified to ISO 9001 Manufactured in accordance with PED 2014/68/EU Module H TÜV component approval as a safety valve in accordance with DIN EN ISO 4126-1 for applicable configurations from 100 to 500 mbar Individual TÜV testing of the specified opening pressure available