Globe Valve Cast Iron JIS 16K - F7309

JIS 16K F7309 Cast Iron Straight Globe Valve

The JIS F7309 is a straight-pattern globe valve constructed from cast iron, designed for marine piping systems with flanged connections to JIS 16K standard. It is intended for manual isolation or throttling duties in networks requiring a higher pressure class than JIS 5K or 10K cast iron globe valves.

Technical Specifications

• Design standard: JIS F 7309-1996
• Test standard: JIS F 7400-1996
• Pattern: Straight flow
• Connection: Flanged
• Nominal pressure: JIS 16K
• Body: FC200 cast iron
• Bonnet: FC200
• Disc/Seat: BC6 or SCS2 (Class B or Class S)
• Stem: C3771BD or BESUS 403
• Packing gland: BC6
• Handwheel: FC200
• Available DN: 50–200

Test Pressures

• Shell: 3.3 MPa
• Seat: 2.42 MPa

These values refer to hydrostatic test pressures and should not be equated with continuous operating pressure. Selection must consider pressure, temperature, media, and class society requirements.

Typical Applications

• Auxiliary engine room piping
• Fresh water and service water lines
• Cooling water systems with JIS 16K flanges
• Liquid networks requiring flow regulation
• Isolation points upstream/downstream of process equipment

For seawater, assess cast iron corrosion, internal protection, trim material, and galvanic compatibility with piping, flanges, and fasteners.

Comparison with F7307

F7307 is a JIS 10K cast iron globe valve, while F7309 is the straight-pattern JIS 16K variant. The higher class affects flange drilling, test pressures, and piping compatibility. Substitution requires verification of DN, face-to-face dimensions, and design pressure.

Selection Considerations

Confirm DN, JIS 16K flanges, face-to-face length, operating pressure/temperature, media, disc/seat material, flow direction, and handwheel access. Only manual operation is specified; no actuator options are listed for this model.