A182 F316 BL Flange

QS Flange: Wenzhou A182 F316 BL Flange

Forged SS 316 blind flange, 6 inch 150LB RF per ANSI B16.5, to block or temporarily block the end of a pipeline.

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One-Minute Overview

Solid forged SS 316 blind flange that blocks flow at a 6 inch flange joint.
Rated 150LB with a raised face, dimensioned to ANSI B16.5.
SS 316 stainless steel resists corrosion in chemical and process service.
Made to block or temporarily block the end of a pipeline.

The A182 F316 blind flange closes a 6 inch piping joint with a solid forged plate instead of a matching pipe run. Forged from SS 316 stainless steel and dimensioned to ANSI B16.5, it bolts directly onto standard weld neck, slip on and socket weld flanges of the same size and class. The raised face suits the usual 150LB gasket arrangements, so the joint seals with the same bolting pattern as the rest of the line.

Name: A182 F316 BL Flange
Size: 6"
Pressure: 150LB
Material: A182 F316 (SS 316)
Flange Face: RF
Standard: ANSI B16.5

Blind flanges go at the end of a header, at a future branch point, or across a valve during maintenance so a section can be opened safely. SS 316 handles corrosive media and outdoor exposure better than carbon steel, which keeps the pressure boundary sound with less upkeep. Bolt with stud bolting of the adjoining flange class, fit the gasket specified for the service, and tighten in a star pattern to the gasket guidance. Inspect the raised face for scratches before fitting the gasket.

FAQ

Q1. Which standard governs the dimensions and pressure rating of this blind flange?

Every dimension, the raised-face finish and the 150LB rating follow ANSI B16.5. The standard also fixes the bolt circle and drilling, so the blind mates directly with standard 6 inch weld neck, slip on and socket weld flanges of the matching class, with no adapter plate and no special gasket required.

Q2. Will it line up with the flanges I already have on the line?

Yes, as long as they are 6 inch 150LB flanges to ANSI B16.5. The bolt pattern and drilling are fixed by that standard, so the blind drops into any standard joint of the same size and class. Match the raised face to the mating flange and use the gasket specified for your service.

Q3. Why pay for SS 316 when a carbon steel blind costs less?

A carbon steel blind will rust in corrosive media or outdoor air, and a rusty pressure boundary is nobody's idea of a good shutdown. SS 316 resists corrosion in chemical and process service, so the flange stays sound, closes cleanly and lasts longer with less maintenance on the line.

What is the smallest order I can place?

Standard flange insulation gasket kits start at one set, and standard gaskets, studs, washers and sleeves start at one piece. Parts made to your drawing or to a non-standard bolt pattern are quoted one by one, because the minimum really depends on the material and the tooling involved.

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