Fuel Oil Tank Emergency Shut-Off Valve Bronze JIS 10K - F7399
JIS 10K F7399 Emergency Shut-Off Valve for Fuel Oil Tank Isolation
Brass emergency isolation valve for shipboard fuel oil tanks, type JIS F7399, featuring flanged connection, 10K pressure class, and straight-through flow configuration. Product specification indicates JIS standardization, brass body material, flanged ends, and nominal pressure rating of 10K.
Functional Role
F7399 is used for rapid isolation of fuel oil or lubricating oil lines in emergency conditions. In marine applications, it serves as a quick closing / emergency shut-off valve, with manual or remote actuation depending on system design and specification.
Selection Criteria
- Type standard: JIS F7399
- Flange class: JIS 10K
- Body material: brass
- Connection: flanged
- Flow pattern: straight-through
- Media: fuel oil, diesel oil, lubricating oil
- Application: emergency shut-off for tanks and fuel lines
Prior to procurement, confirm DN, JIS 10K flange drilling, operating pressure, fuel temperature, viscosity, actuation type, installation location per P&ID, and class society requirements.
Difference from F7398
F7398 is a self-closing drain valve for tank drainage. F7399 is for emergency isolation of fuel lines or tanks. They are not interchangeable without verification of safety function, actuation method, and technical specification.
Maintenance
Periodic inspection should cover seat tightness, stem condition, packing, flange integrity, and closing mechanism. For pneumatic or remote-actuated versions, check cylinder, air line, linkage, and response time.
FAQ
Is this a drain valve?
No. It is an emergency isolation valve.
Can it have an actuator?
Depending on version, F7399 is available with manual, pneumatic, or wire cable actuation.
