Cast Iron, Cast Steel & Bronze Marine Flange Gate Valves | Standard Fluid Blockage (CB/T 465/466/467)
Standard control equipment designed for marine environments. Rotating handwheels drives stems to move gates in straight lines. Works perfectly for strictly full open or closed fluid control.
Accreditation and Certificates:
Rotating handwheels drives valve stems directly. Gates then move in straight lines or move up and down to complete opening and closing actions. Ocean environments use this assembly widely to control the flow of seawater, fresh water, and lube oil. Manufacturers apply aluminum bronze for valve stems and square nuts to increase durability. Gate movement direction remains completely perpendicular to fluid flow. Systems lack flow regulation capabilities and serve only for full open or close functions.
Product Drawings：
Technical Specifications：
| Parameter | Specification |
| Nominal Pressure | 0.25 MPa, 0.4 MPa, 0.6 MPa, 1.0 MPa |
| Nominal Diameter | DN50~DN500 |
| Applicable Media | Seawater, Fresh water, Lube oil, Fuel oil |
| Connection Method | Flange connection |
| Main Material | Cast iron, Cast steel, or bronze |
Key Features：
- Movement direction stays perpendicular to fluid flow for reliable blockage.
- Operation stays limited to completely open or closed positions without regulation.
- Driving mechanisms support manual, electric, or pneumatic methods.
- Body material options include cast iron, cast steel, or bronze.
Applications：
- Marine piping systems: Controls circulation and pressure of everyday media.
- Offshore engineering: Meets strict sealing demands for ocean platforms, naval ships, and fishing boats.
Installation & Maintenance：
Maintenance crews must inspect stem packing and flange connections regularly for leak signs. Cleaning exteriors and lubricating moving parts properly is mandatory. Replace aging or damaged sealing gaskets immediately.
Custom Options Available：
Actuation methods include electric and pneumatic options to match automated engine rooms. We provide customization services based on international standards such as ANSI, JIS, and DIN, ensuring compatibility with different global market requirements.
FAQ ：
Q: Can operators use it to adjust flow speed?
A: No,it normally operates fully open or fully closed and lacks flow regulation functions.
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