Standard Manufacturing Tolerances
Lengths: ± 1/16" on lengths 12" or less. ± 1/8" on lengths 12" or over.
O.D. Tolerances clearfix: ± .015
Bore I.D.: + .005 -.003
Concentricity of Bore to O.D.: ± 10 % of min. wall thickness.
Wetted Surfaces Finish: 16-32 Ra is standard. Special finishes are available upon request.
Male Threads (NPT): ± 1 turn on thread gage.
Female Threads: Both 1/2" NPSM and 1/2" NPT are stocked. Please specify. Go gauge to 5/8" depth of thread. No go gauge 2 turns max.
End of Wells: Break corners - no burrs.
Lagging Ext.: Hex on threaded wells.
Stamping: Type of material and identification code stamped on hex or round.
Flanged Wells: Made in accordance with ANSI B16.5. Raidsed face is serrated.
Welding: Full penetration welds are standard.