JIS U 7398 Shipbuilding-Fuel Oil Tank Self-Close Drain ValvesThe marine aes tank automatic clausura valvae valvae JIS F7398 Duo genera sunt: U genus et F genus. Pressio potest esse 5K vel 10k, et operatio generis potest esse joystick vel button. Designare vexillum JIS F7398-1996Test vexillum JIS 7400-1996Hydraulic test pressionis: corpus valvae -0.15Mpa, signans -0.11MpaThe magnitudo flange conformis vexillum JIS B2220 -5K vel 10K