Quality Control

Meridian™ valves are manufactured to ISO 9001 Quality Standards. By strict adherence to industry recognized valve standards, quality certifications, and our CHECKPOINT® process for monitoring critical control point data during manufacture, we provide a very high level of quality and manufacturing control. Meridian™ API 6D valves come with an industry leading 4 year warranty.


As applicable, Meridian™ API 6D valves are manufactured to the following quality standards.

Design Standard: API 608; API 6D; ISO 17292 CSA Z245.15; CSA B51
Face to Face: ASME B16.10
Flange: ASME B16.5
Marking: MSS SP-25
Inspection: API 598
Pressure & Temp.: ASME B16.34
Quality: MSS SP-55
Fire Safe Design: ISO 10497
Pressure Testing: API 6D; ISO 5208
Documentation: 10204-3.1
Sour Service: NACE MR0175

Certifications and Testing

All Meridian™ valves come complete with hydrostatic test certificates and MTRs (material test reports). All check, floating and trunnion ball valves are tested to the requirements of API 6D. In addition floating ball valves and trunnion ball valves are ALL tested with air to ensure sealing at lower pressures. For Canadian customers CRNs (Canadian Registration Numbers) are available for all provinces where this is required.

Tagging is per the requirements of API 6D, MSS SP-25 and CSA Z245.15.


For API 6D product, our internal manufacturing and process quality system leverages “critical control point” data to provide a high level of quality and manufacturing control. Key components of the CHECKPOINT® process include:

  • A database that links CHECKPOINT® manufacturing plant input to a specific valve serial number.
  • Visual review and/or inspection and sign-off at each stage in the process.
  • Checklist / traveler for each valve / component in production that tracks its progress from raw material to finished product.
  • Ability to monitor CHECKPOINT® data remotely.


Meridian™ 3 piece forged trunnion ball valves and 2 piece cast floating ball valves are SIL rated. Certification available upon request.