Gate Valve Cast Iron JIS 10K - F7364

JIS 10K F7364 Cast Iron Gate Valve

Flanged cast iron gate valve for marine isolation networks, manufactured to JIS F 7364-1996. Nominal pressure class is JIS 10K. Pressure testing is performed per JIS F 7400-1996. Designed for fully open or fully closed operation; not intended for throttling or continuous flow regulation.

Technical Specifications

• Connection: Flanged
• Pressure class: JIS 10K
• Sizes: DN50 to DN400
• Body: FC200 cast iron
• Bonnet: FC200
• Disc: FC200
• Seats: BC6 or SCS2
• Stem: CA771BD or SUS403
• Handwheel: FC200
• Gasket: non-asbestos

Test Pressures

For sizes up to DN400, hydrostatic shell test is 2.1 MPa, seat test is 1.54 MPa. For DN450, values are 1.8 MPa and 1.32 MPa respectively.

Typical Applications

• Seawater and freshwater lines
• Engine room cooling circuits
• Ballast and auxiliary ship systems
• Pump manifolds
• Isolation lines with JIS 10K flanges

Selection Criteria

JIS F7364 is selected when a cast iron gate valve is required for higher pressure class than JIS 5K F7363. Gate design provides low pressure drop when fully open, but operation in partially open position can cause seat wear and vibration.

Maintenance and Leakage

Periodic inspection should include seat condition, stem packing, flange integrity, and body corrosion. For seawater service, check galvanic compatibility between cast iron, bronze components, and piping.

FAQ

Is this a control valve?
No. It is an isolation valve.

What is the main difference from JIS 5K?
JIS 10K has higher shell and seat test pressures.

Where is it typically used?
In marine water, cooling, ballast, and general isolation lines.