Flanged Marine Plug Valve
Flanged Marine Plug Valve is a rotary plug valve designed with flange connections for reliable installation in ship piping systems.
The valve uses a rotating plug mechanism to control fluid flow. Through a 90-degree rotation, the plug aligns or blocks the flow passage, providing quick shut-off and reliable isolation.
Compared with threaded plug valves, flanged marine plug valves provide stronger mechanical connection, better sealing performance, and easier maintenance, making them suitable for larger marine piping systems.
Flanged Marine Plug Valve is widely used in:
Ballast systems
Bilge systems
Seawater cooling systems
Fuel oil systems
Cargo piping systems
Marine auxiliary systems
The valve is commonly installed on:
Cargo ships
Oil tankers
Bulk carriers
Container ships
Offshore vessels
Overview
Working Principle of Flanged Marine Plug Valve
Flanged Marine Plug Valve operates through the rotation of a plug inside the valve body.
| Step | Description |
|---|---|
| 1 | Operator rotates the handle or actuator |
| 2 | Stem transfers torque to the plug |
| 3 | Plug rotates inside valve body |
| 4 | Flow passage opens or closes |
| 5 | Valve isolates pipeline flow |
Connection Structure of Flanged Marine Plug Valve
The flange connection provides a secure and stable installation method.
| Connection Type | Features |
|---|---|
| Raised Face Flange | Common marine pipeline connection |
| Flat Face Flange | Suitable for marine equipment systems |
| Threaded Flange | Used for special applications |
| Customized Flange | Available according to vessel requirements |
Main Components of Flanged Marine Plug Valve
| Component | Function |
|---|---|
| Valve Body | Main pressure-containing structure |
| Plug | Controls flow passage |
| Stem | Transfers operating force |
| Seat | Provides sealing performance |
| Packing | Prevents stem leakage |
| Flange Ends | Connect valve with pipeline |
| Cover | Protects internal components |
| Handle / Gear Operator | Controls valve operation |
| Bolts & Nuts | Secure flange connection |
Applicable Standards of Flanged Marine Plug Valve
| Standard Category | Applicable Standards |
|---|---|
| Marine Valve Standards | JIS F Series Marine Valve Standards |
| Chinese Marine Standards | GB/T Marine Valve Standards |
| Shipbuilding Standards | CB/T Standards |
| Plug Valve Standards | API 599 |
| Flange Standards | JIS B2220 |
| GB/T 9119 | |
| DIN EN 1092 | |
| ANSI B16.5 | |
| Pressure Testing Standards | API 598 / ISO 5208 |
| Classification Requirements | CCS, ABS, DNV, LR, ClassNK |
Material Selection of Flanged Marine Plug Valve
| Material | Features | Applications |
|---|---|---|
| Bronze | Excellent seawater corrosion resistance | Seawater systems |
| Cast Iron | Economical and durable | General marine pipelines |
| Cast Steel | High strength | High-pressure applications |
| Stainless Steel | Excellent corrosion resistance | Offshore and chemical systems |
| Aluminum Bronze | Superior seawater performance | Marine applications |
Common Material Standards
| Material | Standard |
|---|---|
| Bronze | ASTM B62 / JIS H5120 BC6 |
| Cast Iron | ASTM A126 |
| Cast Steel | ASTM A216 WCB |
| Stainless Steel | ASTM A351 CF8M |
| Aluminum Bronze | ASTM B148 |
Technical Specifications of Flanged Marine Plug Valve
| Item | Specification |
|---|---|
| Product Name | Flanged Marine Plug Valve |
| Valve Type | Rotary Plug Valve |
| Connection Type | Flanged End |
| Operation | Manual / Gear Operated |
| Rotation Angle | 90° |
| Medium | Seawater, Fresh Water, Oil, Air |
| Size Range | DN15-DN500 |
| Pressure Rating | PN6-PN40 |
| Flange Standard | JIS / GB / DIN / ANSI |
| Material Options | Bronze / Cast Iron / Cast Steel / Stainless Steel |
| Application | Marine Piping Systems |
Applications of Flanged Marine Plug Valve
| System | Function |
|---|---|
| Ballast System | Controls ballast water flow |
| Seawater Cooling System | Controls cooling water circulation |
| Bilge System | Controls drainage pipelines |
| Fuel Oil System | Controls fuel transfer |
| Cargo System | Provides pipeline isolation |
| Marine Auxiliary System | Controls service piping |
Advantages of Flanged Marine Plug Valve
| Feature | Benefit |
|---|---|
| Flanged Connection | Strong and reliable installation |
| Easy Maintenance | Simple removal and replacement |
| Quarter-turn Operation | Fast opening and closing |
| Multiple Materials | Suitable for different media |
| Marine Design | Adapted to ship environment |
