Discover the precision and reliability of Gemels RF Flow Regulator Control Valves, designed for unidirectional check valve flow control applications. Available in sizes ranging from DN6 (1/4) to DN40 (1.5), these valves feature BSP-NPT ends and can withstand pressures of up to PN400 (5800 psi), ensuring efficient performance even in high-pressure environments. With a temperature range from -20C to +100C (-4F to +212F) and a low cracking pressure of 0.5 bar (7.25 psi), they offer versatility across a wide range of operating conditions. Enhanced with galvanized treatment for increased durability, these valves can be further customized with special threads and pressure class PN 350 upon request to suit specific application needs.