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Help CenterMarine Flange Cast Steel Overboard Stop-check Valve Gb/t1853-2008 A/as Straight Type With Classification Society Certificate
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1. Product Overview
The marine flanged cast steel outboard stop-check valve GB/T1853-2008 A/AS straight type is a valve specially designed for ships. It combines the functions of a stop valve and a check valve, with excellent fluid control performance and the ability to prevent medium backflow. This valve is made of cast steel, which has high strength and good corrosion resistance, and is suitable for the ship's seawater and fresh water pipeline systems.
2. Structural Features
Valve body material: Made of high-quality cast steel, it has high strength and good toughness, and can withstand various pressures and vibrations during the ship's operation, ensuring the stable operation of the valve.
Connection method: Flange connection ensures a stable and reliable connection between the valve and the pipeline, facilitating installation and maintenance. The flange connection dimensions and sealing surfaces comply with relevant standards, improving the compatibility and interchangeability with international standards.
Straight design: The valve passage adopts a straight design, which can reduce fluid resistance and improve fluid flow efficiency. At the same time, the straight structure also makes the operation and maintenance of the valve more convenient.
Sealing performance: Made of high-quality sealing materials, after precision machining and strict testing, it ensures that the valve has good sealing performance when closed, preventing medium leakage.
Check function: The valve is equipped with a built-in check mechanism, which can automatically prevent medium backflow and protect the safe operation of the ship's pipeline system.
3. Working Principle
The working principle of the marine flanged cast steel outboard stop-check valve GB/T1853-2008 A/AS straight type is as follows:
Stop function: When it is necessary to cut off the medium flow, rotate the valve stem to close the valve disc, realizing the cut-off of the medium. High-quality sealing materials are used between the valve disc and the valve seat to ensure the sealing performance when closed.
Check function: When the medium tries to flow backward, the check mechanism will automatically work to prevent the medium from flowing back through the valve. This is mainly achieved through components such as springs or weights inside the check mechanism.
4. Product Advantages
High strength: The cast steel material has high strength and can withstand various pressures and vibrations during the ship's operation, ensuring the stable operation of the valve.
Corrosion-resistant: The cast steel material has good corrosion resistance, and is suitable for the control of various corrosive media on ships, extending the service life of the valve.
Low fluid resistance: The straight design reduces fluid resistance, improves fluid flow efficiency, and reduces energy consumption.
Good sealing performance: High-quality sealing materials are used, and after precision machining and strict testing, it ensures that the valve has good sealing performance when closed.
Reliable check function: The built-in check mechanism can automatically prevent the backflow of the medium and protect the safe operation of the ship's pipeline system.
V. Application scenarios
The straight type of marine flange cast steel overboard stop check valve GB/T1853-2008 A/AS is widely used in the cooling system, fuel system, lubrication system, and drainage system of ships. Especially in the occasions where it is necessary to simultaneously achieve medium cut-off and prevent backflow, this valve can play an important role in ensuring the normal operation and safety of the ship's system.
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