JIS U 7398 Shipbuilding-Fuel Oil Tank Self-Closing Drain ValvesThe marine bronze fuel tank tutup saluran tutup otomatis JIS F7398 duwe rong jinis: jinis U lan jinis F. Tekanan bisa 5K utawa 10k, lan jinis operasi bisa joystick utawa tombol.Desain standar JIS F7398-1996Test standar JIS 7400-1996Hydraulic test meksa: awak tutup -0.15Mpa, sealing -0.11MpaUkuran flange salaras karo standar JIS B222 -5K utawa 10K