1637 44th St. W Williston, ND 58801
701-978-8282
wellhead@nos-llc.com
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Northern Oilfield Services
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API 6A Flange Tool
Terminology
Services
Grease capacity
Bolt & torque
BPV / TWCV
MyNOS app
API 6A Flange Reference Tool
Flange Size (Nominal)
— Select size —
1 13/16"
2 1/16"
2 9/16"
3 1/16"
3 1/8"
4 1/16"
5 1/8"
7 1/16"
9"
11"
13 5/8"
16 3/4"
18 3/4"
20 3/4"
21 1/4"
Pressure Rating
— Select size first —
Select a flange size and pressure rating to view ring, bolt, and pump PSI specs.
NOS Cheat Sheet V1.0 · API 6A / ISO 10423 · NOS supplies ring gaskets & stud bolts · 701-941-0423
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