Marine valves play a crucial role in ship systems, and their correct operation is essential for ensuring navigation safety and system efficiency. This guide aims to provide concise, clear, and easily understandable operation suggestions for marine valves to meet the needs of different user groups and ensure that users can follow them effortlessly.
I. Preparation Before Operation
Familiarize with Valve Types and Functions
Before operation, ensure you understand the type of valve you are operating (such as globe valves, ball valves, butterfly valves, etc.) and its role in the system.
Read and comprehend the valve operation manual to understand the working principle and performance parameters of the valve.
Check Valve Status
Confirm whether the valve is currently open or closed.
Inspect the valve and its connecting parts for integrity and any signs of leakage.
Prepare necessary tools, such as wrenches, screwdrivers, etc.
Wear Personal Protective Equipment
Wear appropriate gloves and goggles to protect your hands and eyes.
When operating in high-temperature or high-pressure environments, also wear corresponding protective clothing and helmets.
II. Operation Steps
Opening the Valve
Slowly turn the valve handle or wheel to avoid sudden opening that may cause drastic changes in system pressure.
For valves that require multiple turns, turn them uniformly and continuously until the desired opening degree is achieved.
Pay attention to observing the resistance changes during the valve opening process and the readings on the system pressure gauge.
Closing the Valve
Similarly, turn the valve handle or wheel slowly and uniformly until the valve is completely closed.
During the closing process, be alert to any abnormal sounds or resistance changes, which may indicate valve malfunctions or blockages.
Adjusting Flow Rate
For valves that require flow rate adjustment, gradually adjust the valve opening degree according to system requirements.
Use a flow meter or other measurement tools to monitor flow rate changes and ensure accurate adjustment.
III. Precautions
Follow Operation Regulations
Regular Inspection and Maintenance
Regularly inspect the valves, including their appearance, sealing performance, and operational flexibility.
Promptly identify and report any abnormalities or damages for timely repair or replacement.
Consider Environmental Factors
When operating in severe weather or sea conditions, be particularly cautious to ensure stable and safe valve operation.
Avoid performing intense or frequent valve operations under extreme temperature or humidity conditions.
Emergency Handling
In case of valve leakage or other emergencies, immediately stop the operation and report to relevant personnel.
Follow the ship's emergency procedures to take corresponding measures to ensure personnel safety and ship stability.
