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Help CenterMarine Valve Flange F7311 Jis 5k Cast Steel Globe Valve With Ccs Classification Society Certificate
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I. Product Overview
The marine valve flange F7311 JIS 5K cast steel globe valve is a high-performance valve specifically designed for ship pipeline systems. It is made of cast steel, complies with the provisions of JIS (Japanese Industrial Standards) F7311, and is suitable for a pressure rating of 5K. This valve has the advantages of compact structure, good sealing performance, and rapid opening and closing. It is suitable for controlling the pressure, flow rate, and flow direction of fluids in ship pipelines.
II. Structural Features
Flange connection: It adopts the standard flange connection method, which facilitates connection with other equipment in the ship pipeline system and is convenient for installation and disassembly. The flange connection standard complies with relevant provisions such as JIS B 2238.
Cast steel material: The valve body is made of high-strength, corrosion-resistant cast steel material, which has high hardness and wear resistance, ensuring a long service life in harsh marine environments.
Sealing structure: High-quality sealing materials, such as PTFE, are used inside the valve to ensure good sealing performance in the closed state and prevent medium leakage. At the same time, the sealing surface is precisely machined to improve the reliability and durability of the seal.
Straight-through design: The straight-through flow passage design results in low resistance when the fluid passes through the valve, improving the valve's flow capacity. It also reduces the accumulation and retention of the medium inside the valve, reducing the corrosion and wear of the medium on the valve.
Manual operation: This valve usually adopts the manual operation method, which is opened and closed through a handwheel or handle. The operation is simple and fast, and it can quickly respond to the needs of the ship pipeline system.
III. Scope of Application
Media: It is suitable for various media such as fresh water, seawater, air, steam (steam with a temperature not exceeding a certain range, such as steam with t ≤ 300℃), and fuel oil.
Environment: It is suitable for the pipeline systems of various types of ships, including oil tankers, chemical tankers, and cargo ships. It is especially suitable for occasions that require high sealing performance and corrosion resistance.
IV. Performance Parameters
Nominal pressure: 5K (The specific pressure rating can be selected according to actual needs)
Nominal diameter: It depends on the specific model and specification, usually including various sizes such as DN25, DN50, and DN100.
Applicable temperature: It depends on the type of medium and the valve material, generally not exceeding the allowable temperature of the medium.
Connection method: Flange connection (compliant with relevant standards such as JIS B 2238)
V. Installation and Commissioning
Installation: During the installation process, ensure that the flange connection surface of the valve is tightly fitted with the flange connection surface of the pipeline, and use appropriate bolts and nuts for fixation. At the same time, check whether the sealing performance of the valve is good, and make necessary adjustments and calibrations.
Commissioning: During the commissioning process, conduct opening and closing operation tests on the valve to check whether it is flexible and reliable, and observe whether there is any leakage. If there are any abnormalities, make timely adjustments and repairs. At the same time, set and calibrate parameters such as the pressure and flow rate of the valve according to actual needs.
VI. Maintenance and Upkeep
Regular inspection: Regularly inspect and maintain the valve, including checking whether the sealing surface, connection parts, etc. are intact and whether there is any leakage. If any problems are found, handle them in a timely manner.
Cleaning and maintenance: Regularly clean the dirt and debris on the valve surface to keep its appearance clean. At the same time, regularly clean and maintain the inside of the valve to ensure its unobstructed operation. During the cleaning process, use appropriate cleaning agents and tools to avoid damaging the valve.
Replacement and repair: If any damage or malfunction is found in the valve, replace or repair it in a timely manner. During the replacement or repair process, ensure that parts identical or equivalent in performance to the original ones are used, and operate in accordance with relevant standards and requirements.
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