Mechanical & Field Services
Valve Repair & Overhaul
Industrial Valve Maintenance, Seat Lapping & Pressure Testing Services
Complete workshop and on-site repair, seat lapping, seal replacement, and pressure testing for control valves, safety valves, gate/globe valves, and actuators.
Key Service Capabilities & Features
Control valve calibration and actuator overhaul
Precision seat lapping, grinding, and re-facing
Soft & hard seal replacement (PTFE, Stellite, Graphite)
API 598 hydrostatic and pneumatic seat leakage testing
Industrial Challenges & Failures We Resolve
Internal seat leakage causing fluid loss and safety hazards
Stem scoring, packing deterioration, and gland leakage
Actuator diaphragm rupture or positioner signal drift
Severe cavitation pitting in high-pressure steam and acid lines
Standard Scope of Work & Repair Methodology
1
Disassembly, chemical decontamination, and dimensional measurement
2
Abrasive grit blasting of valve body and internal components
3
CNC machining or portable lapping of seating surfaces
4
Installation of new gland packings, bonnet gaskets, and O-rings
5
API 598 hydrostatic pressure body and seat leakage certification
Target Industries & Operational Environments
Oil & Gas Refineries
Chemical & Petrochemical Plants
Power Generation Utilities
Pulp & Paper Mills
Fertilizer Manufacturing
Materials, Elastomers & Technical Equipment
Stellite Hardfacing Alloy
Flexible Graphite Packing
Spiral Wound Gaskets
Valve Hydrostatic Test Rig
Portable Seat Lapping Machine