Quality Control & Certifications
JS Machine & Valve operates under established industry standards to support valve repair services, pressure testing, and quality control requirements across refining, power generation, and pipeline applications. Our certifications and procedures ensure repaired valves are inspected, tested, and documented to meet performance expectations before returning to service.
Asset Management & Real-Time Repair Reporting
JS Machine & Valve’s proprietary asset management program gives customers full visibility into every valve in their scope — not just when the job is done, but throughout the entire repair process, around the clock.
Real-Time Repair Inspection Reports
Every valve is tracked through a digital QA/QC traveler that captures disassembly findings, dimensions, parts replaced, PMI data, weld maps, heat treat records, test results, and before-and-after photography, all tied to the valve ID. Customers can review inspection and test findings in real time through an online cloud portal, without waiting for a final package to be delivered at the end of the TA.
Customizable Pass/Fail Criteria
Testing standards are built around your requirements, not generic defaults. Pass/fail thresholds are configurable by valve type, size, and test type — so the system flags what matters to your site, not just what meets the industry minimum. Inspector decisions and comments are captured and visible in the cloud alongside the test data.
Full Scope Visibility Across the TA
Managers have real-time visibility across the full turnaround scope through the web-based app — tracking which valves have been inspected, tested, reviewed, and cleared. Historical repair records are accessible for every valve that has gone through the JS system, supporting pre-TA planning and lessons-learned reviews for the next cycle.
MSS SP-61 – Pressure Testing of Steel Valves
What It Covers
Manufacturers Standardization Society SP-61 defines requirements for pressure testing of steel valves, including shell and seat testing to verify structural integrity and sealing performance.
Why It Matters
Pressure testing is a critical step in confirming that repaired valves can withstand operating conditions and maintain proper isolation.
How JS Applies It
- Shell and seat testing of repaired valves
- Verification of sealing performance under pressure
- Integration with final inspection and documentation
National Board "VR" Stamp - Valve Repair
What It Covers
The National Board of Boiler and Pressure Vessel Inspectors “VR” Stamp certifies organizations to repair pressure relief valves in accordance with controlled procedures and documented quality systems.
Why It Matters
This certification ensures pressure relief valve repairs are performed under strict guidelines for safety, accuracy, and traceability.
How JS Applies It
- Repair and testing of pressure relief valves
- Controlled procedures and documentation for each repair
- Compliance with National Board requirements for safety devices
National Board “R” Stamp – Repair & Alteration Certification
What It Covers
The National Board of Boiler and Pressure Vessel Inspectors “R” Certificate of Authorization applies to the repair and alteration of pressure-retaining equipment, including valves, in accordance with the National Board Inspection Code (NBIC).
Why It Matters
This certification ensures that repair work on pressure-containing components is performed under a controlled quality system, with oversight, documentation, and verification required for compliance and safety.
How JS Applies It
- Repair and alteration of pressure-retaining valve components
- Execution of work under documented quality control procedures
- Coordination with authorized inspection agencies
- Full documentation and traceability for repair activities
CALL US
417-825-3354
LOCATION
20583 US Highway 169
Nowata, OK 74048
BUSINESS HOURS
M-F : 8:00am to 5:00pm




