Air Valve
1. Manufacturing defects in materials or workmanship.
2. Leakage due to faulty sealing components under normal operating conditions.
3. Failure of internal mechanism caused by defective parts.
4. Corrosion or surface coating failure within the warranty period, provided valve was installed in suitable environment.
5. Replacement or repair of defective unit, subject to inspection and approval.
1. Damage caused by improper installation, misuse, or tampering.
2. Normal wear and tear of consumables (e.g., gaskets, seals, O-rings).
3. Damage due to exposure to chemicals, extreme temperatures, or pressures beyond design specifications.
4. Failure caused by debris, scaling, or foreign particles in the pipeline.
5. Unauthorized repairs, modifications, or use of non-genuine parts.
6. Damage due to negligence, accidents, fire, flood, or natural calamities.
1. Manufacturing defects in both inlet and outlet mechanisms.
2. Leakage or malfunction under standard operating conditions due to defective components.
3. Failure of the float system or pressure release system due to manufacturing fault.
4. Anti-corrosion coating failure, provided valve was used within recommended environmental and operational limits.
5. Full unit repair or replacement after technical evaluation, within warranty period.
1. Installation errors, mishandling, or deliberate tampering with dual-chamber system.
2. Normal deterioration of wear parts such as seals, washers, and rubber components.
3. Malfunction due to pipeline contamination (sand, silt, welding slag, etc.).
4. Operation outside specified pressure, temperature, or flow ranges.
5. Use of valve in incompatible media (chemicals, aggressive fluids not specified).
6. External damage due to impact, vibration, or environmental factors beyond control.
7. Any third-party alterations, modifications, or non-standard spare part replacements.