JIS Ordinary Globe & Angle Valves
Marine Cast Iron 10kgf/cm2 F-7307/F-7308
Marine Cast Iron 10kgf/cm2 F-7307/F-7308 is a group of 20 IMPA-coded items (codes 750231–750256) under JIS Ordinary Globe & Angle Valves in the Valves & Cocks section (IMPA 75). All of them are priced per piece. The list runs through 11 metric sizes from 50 mm to 400 mm.
Buying guide
This group holds the JIS marine cast-iron globe valve in 10K class: the straight-pattern F 7307 and the angle-pattern F 7308, flanged, in nominal sizes from 50 mm upward. The globe pattern is the screw-down valve used where a line needs isolating or throttling.
On board it sits on cooling-water and service-water lines, fresh-water systems and the auxiliary engine-room networks. The chief or second engineer raises it as a renewal when a valve fails a seat test, is found wasted at survey, or a body cracks.[1]
How to specify it
State the JIS number and pattern (F 7307 straight or F 7308 angle), the class (10K) and the nominal size in mm. The 10K valve carries 10K flange drilling and higher test pressures than the 5K F 7305, so the class must match the line and the mating flanges; do not let a 5K valve be offered against a 10K requirement.[1]
Typical construction is an FC200 cast-iron body and bonnet, with the disc and seat in SCS2 stainless or BC6 bronze depending on the class S or class B version, and a brass or SUS403 stem. Say which trim you want, and ask for the valve to be tested to JIS F 7400 with a test record.[1]
Rules and certificates
Design is to JIS F 7307 (F 7308 for the angle pattern) and testing to JIS F 7400. For sizes up to DN200 the hydrostatic shell test is 2.06 MPa and the seat test 1.51 MPa; from DN250 they are 1.47 MPa and 1.08 MPa.[1]
Not for the ship’s side: under Load Line regulation 22(6) all shell fittings and the valves required by that regulation must be of steel, bronze or other approved ductile material, and valves of ordinary cast iron are not acceptable.[2]
Questions buyers ask
- What is the difference between F 7307 and F 7308?
- Same valve family and class; F 7307 is the straight-through globe pattern and F 7308 the angle pattern, where the outlet turns 90 degrees.
- Can I fit a cast-iron globe valve as an overboard discharge or sea valve?
- No. Load Line regulation 22(6) does not accept valves of ordinary cast iron for shell fittings; use steel, bronze or another approved ductile material.
Sources
Published by Sherif Awad, founder of GeoMarineHub — in ship supply since 1990, a family business since 1981 (45 years). Last checked .
At a glance
Part of Valves & Cocks (IMPA section 75): Globe, gate, check, ball and butterfly valves, cocks and strainers, by standard, rating and material.
It is one of 12 groups under JIS Ordinary Globe & Angle Valves; the others include Marine Bronze 16kgf/cm2 F-7303/F-7304, Marine Bronze 5kgf/cm2 F-7301/F-7302, Marine Cast Iron 16kgf/cm2 F-7309/F-7310, Marine Cast Iron 5kgf/cm2 F-7305/F-7306, Marine Cast Steel 10kgf/cm2 F-7319/F-7320 and 6 more.
Post the ones you need as a requirement and verified suppliers activated at your port bid on them — sealed, so nobody sees another bid.
- Items
- 20
- IMPA codes
- 750231–750256
- Priced
- per piece
- Sizes
- 50 mm – 400 mm
Items
Also under JIS Ordinary Globe & Angle Valves
- Marine Bronze 16kgf/cm2 F-7303/F-7304
- Marine Bronze 5kgf/cm2 F-7301/F-7302
- Marine Cast Iron 16kgf/cm2 F-7309/F-7310
- Marine Cast Iron 5kgf/cm2 F-7305/F-7306
- Marine Cast Steel 10kgf/cm2 F-7319/F-7320
- Marine Cast Steel 20kgf/cm2 F-7313/F-7314
- Marine Cast Steel 30kgf/cm2 F-7315/F-7316
- Marine Cast Steel 40kgf/cm2 F-7317/F-7318
- Marine Cast Steel 5kgf/cm2 F-7311/F-7312
- Marine Malleable Iron 16kgf/cm2 EX-F7323/EX-F7324
- Marine Malleable Iron 5kgf/cm2 EX-F7321/EX-F7322
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