Globe Valve Bronze JIS 16K - F7303

Bronze Globe Valve JIS 16K F7303

The JIS F7303 is a straight-pattern bronze globe valve designed for marine piping systems, featuring flanged connections to the JIS 16K standard. It is specified for manual isolation or throttling duties where higher pressure ratings are required compared to JIS 5K variants. The product is classified as a bronze (BC6) straight-through globe valve with 16K nominal pressure flanged ends.

Technical Specifications

• Type: Marine bronze globe valve
• Design standard: JIS F7303
• Test standard: JIS F7400
• Connection: JIS B2220 16K flanges
• Materials: Body/bonnet/disc – bronze BC6; stem – brass C3771BD; handwheel – cast iron FC200
• Available sizes: DN15–DN40
• Hydrostatic test (F7303 16K): body 3.3 MPa, seat 2.42 MPa

Suitable Media

• Seawater and freshwater
• Air or inert gas
• Lube oil or fuel oil
• Low/medium pressure steam (subject to temperature and pressure verification)

For non-shock water flow: up to 2.2 MPa at 120°C. For air, gas, oil, pulsating water, and steam up to 205°C: max pressure 1.6 MPa (per F7303 technical references).

Marine Applications

• Auxiliary engine room lines
• Cooling and service water systems
• Steam tracing or service steam lines
• Oil service lines
• Flow regulation points where isolation valves are insufficient

F7303 vs F7301

F7301 refers to JIS 5K straight-pattern bronze globe valves. F7303 is the corresponding 16K version, with higher pressure class and different flange drilling. Not interchangeable without verifying flange compatibility, face-to-face dimensions, and design pressure.

Selection Considerations

Before procurement, verify DN, flange standard, pressure/temperature ratings, media, flow direction, class requirements, and maintenance access. Standard version is manual; actuator options are not documented in available product data.