Valve Weld Repair & Overlay
JS Machine & Valve provides valve weld repair and overlay services performed both in the field and in-shop, depending on project scope, access, and service requirements.
Weld Repair & Overlay Overview
Valves operating in severe service environments are exposed to heat, pressure, corrosion, and abrasive media, which can lead to wear, damage, and loss of sealing performance over time. JS Machine & Valve restores these components through weld repair and hardfacing, allowing valves to return to service without full replacement.
Weld repair and overlay can be performed in the field or in a controlled shop environment, depending on the condition of the valve and project requirements.
Field execution for in-place repair, outage work, and time-sensitive situations
Shop-based repair for controlled welding, machining, and full rebuild scope
Services Include:
- Weld repair of valve bodies and components
- Hardfacing and overlay of sealing surfaces
- Base material rebuild and restoration
- Machining and finishing of repaired areas
Key Benefits of Weld Repair & Overlay
Extend Equipment Life
Rebuild worn or damaged components and return valves to service instead of replacing them.
Reduce Replacement Costs
Avoid long lead times and high capital costs associated with new valves.
Restore Sealing Performance
Repair and re-machine sealing surfaces to improve shutoff and reliability.
Materials & Repair Expertise
Engineered Material Selection for Reliable Valve Repair
Weld repair and overlay performance depends heavily on material selection and process control. JS works with a wide range of base materials and overlay alloys to match the demands of each application.
- Stellite and other cobalt-based hardfacing alloys
- Stainless steels and high-alloy materials
- Carbon steel and pressure-containing components
- Material-specific welding procedures and heat control
Our team selects and applies materials based on operating conditions, ensuring compatibility, durability, and long-term performance.
Capabilities & Applications
JS provides weld repair and overlay services across a wide range of valve types and industrial applications.
Core capabilities include:
- Stellite and alloy weld overlays for erosion resistance
- Base material rebuild for damaged or worn components
- Precision machining and surface restoration
- Flange facing, bore repair, and taper grinding
- Stem repair and fabrication
Supported valve types include:
- Gate, globe, and check valves
- Ball valves and plug valves
- Control valves
- Pipeline and pressure seal valves
These services are commonly used in refining, petrochemical, power generation, and other severe service environments.
Documentation & Quality Assurance
JS Machine & Valve ensures every weld repair is fully verified and documented to support quality, traceability, and reliable performance in service.
Quality assurance and inspection include:
- Dye penetrant inspection (NDE)
- Hardness testing (Rockwell / Brinell)
- PMI (Positive Material Identification)
- Pressure testing per API standards
Documentation provided includes:
- Repair and weld procedure records
- Inspection and NDE reports
- Material verification data
- Final test documentation
This approach ensures each repair meets required standards and is backed by complete, verifiable records.
Why JS Machine & Valve
JS combines welding expertise, machining capability, and field service support to deliver complete valve repair solutions.
- ASME “R” Stamp certified weld repair (shop and field)
- Experienced technicians across multiple valve types and materials
- Integrated machining, repair, and reverse engineering
- Nationwide field service capability
- Proven experience in severe service environments
CALL US
417-825-3354
LOCATION
20583 US Highway 169
Nowata, OK 74048
BUSINESS HOURS
M-F : 8:00am to 5:00pm
