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catawissa
Warnings: 1. Do not mix Standard Service and Sour Gas Service Unions or parts.
2. Do not make up or break out Unions in pressurized lines.
3. Always use good safety practices, including use of safety glasses, when making up or breaking out Unions.
▲ Weld ends – Consult Factory. † Steel Forging Subs available – Consult Factory. TPI = Threads per inch. DI = Ductile Iron. SF = Steel Forging. BS = Bar Stock. ST = Steel Tubing.
Catawissa Quick Reference Chart
Standard Service
Fig No. CWP TEST
API Color Code Pipe Size (in.)
SUB NUT 1" 1¼" 1½" 2" 2½" 3" 4" 6"
100 1,000 1,500 Yellow Black
200 2,000 3,000 Gray Blue
206 2,000 3,000 Gray Blue
211 2,000 3,000 Light
Blue Gray
300 2,000 3,000 Yellow Gray
301 3,000 4,500 Green Black
400 4,000 6,000 Red Black
600 6,000 9,000 Silver Black
602 6,000 9,000 Orange Black
607 6,000 9,000 Silver Yellow
1002 10,000 15,000 Blue Red
1502 15,000 22,500 Red Blue