Product Name: API 6A Flanged Spool / Adapter Spool
Type: Flanged Spool
Standard: API 6A
Material: AISI 4130 Alloy Steel
Product Specification Level: PSL3
Performance Requirement: PR2
Size: NPS 3-1/8 Inch (79.37 mm)
Total Length: 500 mm
Flange Ends: Class 900 LB RTJ * Class 600 LB RF
Other Requirements: Complete with Gaskets and Fasteners.
Source: https://www.landee.cn/api-6a-flanged-spool-aisi-4130-psl3-pr2-3-1-8-in-rf-rtj.html