Hose Valve Bronze JIS 5K - Nakajima - F7334
Brass Fire Valve JIS 5K Nakajima F7334
Manual fire main valve for marine water systems, type F7334, manufactured to JIS standard, with flanged connection, brass body, nominal pressure class 5K, straight-through flow configuration, and Nakajima hose coupling. Product documentation specifies JIS standard, flanged end, brass construction, 5K pressure class, and straight pattern.
Application in Marine Water Networks
Installed on ship fire mains, hose stations, decks, engine rooms, and auxiliary fire water lines. The straight-through pattern is selected when hose outlet and pipeline are aligned axially.
Technical Selection Criteria
- Type: JIS F7334
- Pressure/Flange Class: 5K
- Body Material: Brass
- Network Connection: Flanged
- Hose Connection: Nakajima
- Pattern: Straight-through
- Operation: Manual
- Service Media: Fire water
Prior to procurement, confirm DN, JIS 5K flange drilling, Nakajima coupling type, flange gasket, network operating pressure, and class society requirements.
Materials and Maintenance
Brass is specified for marine environments due to improved corrosion resistance compared to cast iron. Periodic inspection should verify seat tightness, stem or packing leakage, condition of bolts and gaskets, and check for scale or wear at the Nakajima coupling.
Straight vs. Angle Pattern
Straight F7334 is used where pipeline and hose remain coaxial. Angle pattern is selected for 90° outlet at bulkheads, decks, or where space is restricted.
FAQ
Is it suitable for steam?
No. Standard application is fire water networks only.
What does JIS 5K mean?
Indicates Japanese Industrial Standard flange/pressure class 5K.
Can it be actuated?
This listing covers manual valves; no electric or pneumatic actuator is specified.
