JIS U 7398 Shipbuilding-Fuel Oil Tank Self-Closing Drain Valves The marine bronze fuel tank automatic closing drain valve JIS F7398 has two types: U type and F type. The pressure can be 5K or 10k, and the operation type can be joystick or button. Design standard JIS F7398-1996 Test standard JIS 7400-1996 Hydraulic test pressure: valve body -0.15Mpa, sealing -0.11Mpa The flange size conforms to the standard JIS B2220-5K or 10K
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