Globe Valve Cast Iron JIS 5K - F7305

JIS 5K F7305 Cast Iron Globe Valve

The JIS F7305 is a straight-pattern globe valve constructed from cast iron, designed for low-pressure marine piping systems with JIS 5K flanged connections. It is intended for manual isolation or limited flow regulation in auxiliary shipboard networks where the pressure drop associated with globe valves is acceptable within the hydraulic calculation of the line.

Technical Specifications

• Design standard: JIS F 7305-1996
• Test standard: JIS F 7400-1996
• Connection: JIS 5K flanged
• Body type: Straight flow
• Body material: FC200 cast iron
• Bonnet: FC200
• Seat/disc: BC6 or SCS2 (Class B or Class S)
• Stem: C3771BD or BESUS 403
• Handwheel: FC200
• Available sizes: DN50–DN350

Test Pressures

For sizes up to DN300: body hydrostatic test at 1.05 MPa, seat test at 0.77 MPa. For DN350: body test at 0.9 MPa, seat test at 0.66 MPa.

Typical Applications

• Fresh water distribution
• Cooling water and service water lines
• Auxiliary engine room piping
• Low-pressure liquid distribution systems
• Locations requiring flow regulation, not just full open/close

For seawater service, verify material selection, coating/protection, corrosion resistance, and galvanic compatibility with adjacent piping.

Comparison: Bronze JIS 5K F7301 vs Cast Iron JIS 5K F7305

F7301 (bronze) is typically available in smaller DN. F7305 (cast iron) covers DN50–DN350. Selection depends on pressure class, media, corrosion risk, size, weight, maintenance, and classification society requirements.

Selection Considerations

Before procurement, confirm DN, JIS 5K drilling, face-to-face length, flow direction, seat/disc material, operating pressure, temperature, media, and handwheel accessibility. Standard configuration is manual operation; actuator options are not specified in this reference.