Servicing of EHC Valves

Electro-hydraulic control valves govern steam admission on turbines. Their condition bears directly on turbine response and on trip reliability.

Scope of Work

What the service covers

Strip and inspect
Complete breakdown for internal access, assessed against wear limits.
Seals and soft goods
Seals, gaskets and packing replaced.
Servo valve testing
Null bias, hysteresis and response verified against specification.
Reassembly
Rebuilt to the manufacturer’s clearances.
Calibration
Stroke and response calibrated to the governing system.

More Services

Repair, overhaul and calibration of control valves, positioners and accessories.

Testing, setting and certification of relief devices.

Repair and maintenance of motor-operated valves, including stroke, torque and limit setting.

Genuine OEM parts and remanufactured valves where replacement beats repair.

Removing particulate and corrosive carry-over from combustion exhaust.

New design, modification of existing plant, and installation.

Restoring oil condition against particulate, water and oxidation.

Send the make, model and the symptom and we will scope it.