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ADVENTZ INFINITY@5 BN Block,19 Floor-North Wing, Saltlake, Sector-5, Kolkata-700091
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Manual Of Check Valves
1. Transportation and Storage

1.1 Transportation

1. Always transport valves in a closed position.

2. Protect from physical damage, dust, and moisture during transit.

3. Do not lift the valve by its stem, disc, or actuator — use lifting lugs or support straps.

4. Use original packaging whenever possible to avoid deformation./p>

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storage

1.2 Storage

1. Store indoors in a clean, dry environment.

2. Avoid exposure to direct sunlight, chemicals, or humidity.

3. Keep valves off the ground on wooden pallets or shelves.

4. Protect flange faces using flange protectors to prevent rust and damage.

5. Operate the valve (open/close) once every 3 months during extended storage.

2. Installation

2.1 Pre-Installation Checks

1. Check the valve for damage, rust, or debris.

2. Ensure the flow direction arrow matches the intended pipeline flow.

3. Clean pipeline of foreign materials before valve installation.

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valve

2.2 Installation Guidelines

1.Install valve horizontally or vertically, depending on design.

2. Ensure sufficient clearance for inspection and maintenance.

3. Use gaskets and torque bolts evenly to prevent flange distortion.

4. Do not overtighten — follow manufacturer’s torque specs.

5. If valve has an external spring, avoid compressing it during installation.

3. Troubleshooting
4. Maintenance
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1. Check for leaks, abnormal noises, or vibrations monthly.

2. Clean internal parts and inspect seating surfaces every 6–12 months depending on operating conditions.

3. Replace worn-out seals, gaskets, and springs as needed.

4. Lubricate moving parts if applicable.

5. During shutdown maintenance:
a. Fully isolate the valve from line pressure.
b. Drain the system and depressurize.

4. Safety And Precautions

1. Always depressurize the pipeline before inspection or removal.

2. Use PPE: gloves, goggles, safety boots when handling.

3. Never use the valve as a structural support or step.

4. Do not modify or tamper with pressure-rated components.

5. Ensure valve compatibility with fluid type, temperature, and pressure.

6. Follow local safety codes and industry standards during work.

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