Home Valve Repair Proportional Valve Repair
Complete Hydraulic Proportional Valve Repair

Proportional Valve Repair

K+S Services supports industrial facilities throughout North America by offering reliable, timely repairs on a wide variety of hydraulic components, including proportional valves. Our process is centered around reconditioning, ensuring every valve that leaves our facility is repaired and verified to meet OEM performance specifications.

Brands We Support

What We Service

View All Brands

K+S Services employs skilled technicians that average over 15 years of experience and are trained and certified to repair current and obsolete proportional valve models from most major brands, including Bosch, Moog, Parker, and Vickers. Our state-of-the-art, U.S.-based facility features test stands that are custom designed around each brand and/or model to ensure repair accuracy.

Moog valve repair
Parker valve repair
Coax valve repair
Vickers valve repair
ISO-Compliant Repair Services

The K+S Difference

K+S Services has a proven reconditioning process backed by over 40 years of experience. Every stage of our reconditioning process is carefully documented in our ISO 9001:2015-compliant quality management system and made visible to you through our Customer Portal. Every technician is OEM-trained, any damaged components are replaced with direct OEM or OEM equivalents, and for obsolete models, our in-house team can reverse engineer replacements.

Partnering with K+S doesn’t just mean cosmetic and basic functionality issues are fixed. Your proportional valves are entirely restored based on original performance specifications.

ISO Certified Quality
Free Evaluations & Failure Analysis Reports

What Our Process Looks Like

We want to prove to you why industrial facilities continue to trust K+S Services and that’s why we offer evaluations and comprehensive Failure Analysis Reports that outline our findings and recommended repairs at *no additional cost.* As a specialty industrial repair facility, our technicians are capable of repairing directional control, flow control, pressure control, solenoid-operated, pilot-operated, servo-proportional valves. When you trust K+S Services with your repair project, you can expect the following:

Step 1

Evaluation:

Our factory-certified technicians disassemble your valve and inspect individual components for signs of wear or damage. Damaged components are photographed and documented.

Step 2

Analysis Report:

We compile a Failure Analysis Report that outlines what we found during our free evaluation, including the probable cause of failure, our recommended solutions, and a cost and timeline estimate.

Step 3

Repair:

Damaged components are replaced with OEM or OEM-equivalent spares. We keep over $5 million worth of spare parts on hand to ensure faster lead times. Every component is ultrasonically cleaned, new seals and a pilot filter (if applicable) are installed, and on-board electronics are verified and repaired if needed.

Step 4

Diagnostics:

K+S Services uses dedicated test stands to verify manufacturer specifications. Reconditioned valves are pressurized and computer-tested under load, assessing command signal, flow output, feedback signal, pressure, and internal leakage. Linear Variable Differential Transformer is also tested.

Step 5

Post-Repair:

We’ll ship your reconditioned valve along with a copy of our diagnostic testing, a 12-month in-service warranty, installation instructions, a report of which components were replaced, and maintenance recommendations.

Proportional Valve Repair

Resources

View All Resources

Find a Rep

Use our convenient representative locator to find a K+S rep near you that can assist you in repairing your components today.

Resources

The K+S Resource library is a searchable, comprehensive repository of all documents related to K+S. Whether you are looking for our line cards, or application-specific documentation, you will be able to find it in the Resource library below.

View Resources
Top