Control Valve
1 Manufacturing defects in the valve body, actuator, and internal components.
2 Leakage through the seat (within allowable limits as per ANSI/FCI standards).
3 Actuator malfunction due to material or workmanship defects.
4 Control performance under specified operating conditions.
1 Damage caused by improper installation, alignment, or over-tightening.
2 Corrosion or erosion due to process media outside specified compatibility.
3 Failure due to foreign material ingress (lack of filtration).
4 Wear and tear on trim components due to cavitation or flashing not accounted for in design..
1 Disc and seat performance under specified pressure drop and flow conditions.
2 Actuator integrity (electrical, pneumatic, or hydraulic).
3 Body leakage and shaft seal tightness under normal conditions.
1 Premature wear of seat due to throttling near closed position (not designed for such operation).
2 Damage from reverse flow or back pressure not considered in design.
3 Valve deformation due to pipe stress or thermal expansion.
1. Coverage for body integrity and sealing performance.
2. Suitable for heavy-duty service as per manufacturer’s pressure-temperature rating.
3. Protection against flange leakage if installed with correct gaskets.
1. Failures due to over-tightening flange bolts.
2. Damage from pipeline stresses (misalignment or unsupported loads).
3. Warranty void if subjected to abrasive slurry not designed for.