SOCLA's TJ, TJO, FL, and 04 Systems encompass a range of guided check valves engineered for efficient backflow prevention across various applications, including water distribution, heating, and hydrocarbon pumping. These valves feature materials such as brass, polyacetal, and stainless steel, with seals available in EPDM or FKM, ensuring compatibility with diverse media. Designed for minimal head loss and reliable sealing, they support BSP or NPT threaded connections and comply with PED 2014/68/UE standards, making them suitable for both domestic and industrial installations.