Hydraulic Valve Repair – Servo & Proportional

Hydraulic Servo & Proportional Valve Brands We Repair

We repair servo and proportional valves from Vickers, Moog, Pegasus, Bosch-Rexroth, Abex, Atchley, Atos, Parker & many more.

What Comes With Every Hydraulic Valve Repair

• Free quotes on servo and proportional valve repair
• Stand-alone amplifier and on-board electronics repair
• Dynamic performance testing & quick turnaround
• 2-year warranty on every valve repair

Frequently Asked Questions About Hydraulic Valve Repairs

Who repairs hydraulic servo and proportional valves near me?

We do, out of our shop at 1567 Exchange Avenue in Oklahoma City, OK. Valves come to us from across the country as well. Print our repair packing slip and ship the valve. We’ll send a free quote back before starting any work.

Can hydraulic servo and proportional valves be repaired or rebuilt?

Repair technicians rebuild many hydraulic servo and proportional valves. The repair process may include bench testing, disassembly, ultrasonic cleaning, inspection, replacement of worn components, calibration & final performance testing. Some units also need torque motor, amplifier or onboard electronic repair. Precision Fluid Power is trusted to repair hydraulic valves and backs them with a two-year warranty.

How do proportional hydraulic valves work?

Proportional hydraulic valves use a variable electrical command to control a solenoid and move the valve spool. Spool travel changes the size and direction of the fluid path, letting the valve regulate flow or pressure in proportion to the input signal. Models use onboard electronics and spool-position feedback to compare the actual position with the command and adjust movement more closely and more carefully.

What is the difference between a hydraulic servo valve and a proportional valve?

Servo valves and proportional valves convert electrical commands into hydraulic control. Servo valves deliver faster response and lower deadband. This suits closed-loop systems that might require precise motion. Proportional valves use proportional solenoids and serve systems that need smooth, variable control at a lower cost. Servo-proportional designs use integrated electronics and spool-position feedback, so some valve categories overlap.

What are the signs that a hydraulic valve needs repair?

Common signs include erratic or slow actuator movement, cylinder drift, unstable pressure or flow & delayed response to an electrical command. A valve sticks. It fails to return to neutral. Or it develops internal leakage. Contaminated fluid, worn spool and bore surfaces, damaged seals, coil faults, and onboard electronic problems create similar symptoms. A controlled performance test identifies the source before any hydraulic valve repair begins.

How much does hydraulic valve repair cost?

Each unit requires an individual quote. Cost depends on the valve type, internal damage, electronic faults, replacement parts & test requirements. A cleaning and calibration service costs less than a repair that needs a spool-and-bushing assembly, torque motor or amplifier. We provide free quotes for servo and proportional valve repair.