Marine Stainless Steel Flange Gate Valve | Cryogenic & Corrosive Control (CB/T 3955)
Premium stainless steel valves built for severe marine corrosion. Flow resistance stays low while allowingbidirectional media movement. Applicable for systems with design temperatures down to negative 165 degrees Celsius.
Accreditation and Certificates:
Severe offshore conditions demand extreme material resistance. Stainless steel construction grants this equipment high corrosion resistance. Opening and closing parts move perpendicular to fluid directions.Operators expend less effort during activation. Short structural lengths make pipeline arrangement highly flexible. Engineers designed this model specifically for environments not exceeding 0.6MPa pressure and temperatures not lower than negative 165 degrees celsius.
Product Drawings：
Technical Specifications：
| Parameter | Specification |
| Nominal Pressure | 0.25 MPa, 0.4 MPa, 0.6 MPa |
| Nominal Diameter | DN50~DN500 |
| Applicable Media | Seawater, Fresh water, Oils, and corrosive media not lower than negative 165 degrees celsius |
| Connection Method | Flange connection |
| Main Material | Stainless steel |
Key Features：
- Flow resistance remains exceptionally low with bidirectional flow capability.
- Opening and closing actions save effort within short structural lengths.
- Applicable design temperatures drop to negative 165 degrees Celsius.
- Operating modes support manual, electric, or pneumatic driving.
Applications：
- Liquefied gas carriers: Transports cryogenic and corrosive liquefied gases safely.
- Bulk chemical ships: Handles various corrosive chemicals like acids, alkalis, and organic solvents.
- Civilian merchant ships: Manages seawater cooling and fuel delivery networks for oil tankers and cargo ships.
Installation & Maintenance：
Inspectors must check stem packing and flange connections for leaks specifically. Cleaning valve exteriors and lubricating moving parts properly is mandatory. Replace damaged sealing gaskets quickly. Ocean environments demand special attention to pitting and intergranular corrosion on stainless steel parts, requiring metallographic or corrosion tests when necessary.
Custom Options Available：
Buyers can request pneumatic or electric drives instead of standard manual wheels. We provide customization services based on international standards such as ANSI, JIS, and DIN, ensuring compatibility with different global market requirements.
FAQ ：
Q：Will this product survive extreme cold environments?
A：Yes，it suits piping systems with design temperatures not lower than negative 165 degrees celsius.
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