Specialist Repairs
Hydraulic Valve Repair
Hydraulic Valve Repair at Yekta Sanaat: Diagnosis and repair of directional, pressure and flow control valves.
Directional, pressure and flow control valves can suffer from seizure, internal leakage or reduced performance over time and through oil contamination. Many problems can be addressed by cleaning, replacing seals or restoring components; the cause of failure is investigated before action is taken.
What does a hydraulic valve repair involve?
Directional, pressure and flow control valves work with a very small clearance between the spool and the body. As a result, a little contamination or wear is enough to make a valve stick, leak internally or stop holding the set pressure. During inspection the spool and body, springs, seats, O-rings and solenoid coils are checked and cleaned.
Common symptoms include slow or unresponsive actuators, pressure loss on one line, hot oil and unusual noise when the valve shifts. After inspection, the parts to be replaced and the estimate are given, and work starts once you approve.
What to include in a repair enquiry
Enter the full valve code, the control type (manual, solenoid or pilot), the coil voltage and the fault in the repair request form. To buy a new valve instead, browse the hydraulic products catalogue by category and brand.
Hydraulic Valve Repair: common symptoms
- Actuator does not move or moves slowly
- Internal leakage and pressure loss while stationary
- Solenoid coil failure or malfunction
- Spool seizure caused by contaminated oil
- Pressure cannot be adjusted or drops suddenly
Hydraulic Valve Repair: how it works
- 1
Submit details
send the brand, model and symptoms.
- 2
Technical review
initial assessment and delivery arrangements.
- 3
Estimate
issued after dismantling and inspecting the spool and seats.
- 4
Approval
repair starts after your approval.
- 5
Repair and testing
cleaning, replacement of seals or damaged parts, and functional testing.
- 6
Handover
the valve is returned with relevant guidance.
Warranty and test pressure claims are published only after company confirmation.
Frequently asked questions
Can the coil be replaced separately?
Where required, a coil compatible with the valve model and voltage can be supplied.
How does oil contamination affect valves?
Contamination is a common cause of spool seizure; the circuit oil and filter should also be checked.