ANSI B16.5 Socket Weld Flange

QS Flange: Yancheng ANSI B16.5 SW Flange

Forged stainless steel socket weld flange, 1 inch 150LB RF per ANSI B16.5, built for high-temperature and high-pressure lines that carry flammable or explosive media.

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One-Minute Overview

Socket weld flange that joins a 1 inch pipe into a 150LB raised-face joint.
Forged stainless steel body for high-temperature, high-pressure service with flammable or explosive media.
ANSI B16.5 dimensions and an RF face that mates with standard Class 150 gaskets.
Easy to install and disassemble, with good sealing performance in oil, gas and chemical piping.

The ANSI B16.5 socket weld flange takes a 1 inch pipe into a machined socket and seals it with a fillet weld around the hub, leaving a smooth bore for flow. Forged stainless steel forms the pressure boundary at 150LB, and the raised face matches standard Class 150 gasket facings. It is a compact joint for lines that run hot, run under pressure and carry media nobody wants to see escape.

Name: ANSI B16.5 SW Flange
Size: 1"
Pressure: 150LB
Material: Stainless Steel
Flange Face: RF
Process Method: Forged
Standard: ANSI B16.5

Socket weld flanges earn their keep on small-bore lines in oil and gas, chemical processing and power generation, where the fillet weld avoids the fit-up fuss of butt welds and the socket keeps the pipe aligned during welding. Leave the expansion gap your welding procedure calls for, tack the pipe, and complete the fillet around the hub. Easy installation and disassembly mean maintenance crews can open the joint without drama, and the raised face keeps the seal tight in high-temperature, high-pressure service carrying flammable or explosive gas or liquid.

FAQ

Q1. Which standard governs this socket weld flange?

Dimensions, the 150LB pressure class and the raised-face finish follow ANSI B16.5, so the flange mates with standard Class 150 fittings and gaskets. The forged stainless steel body and socket weld end suit 1 inch piping where a smooth bore and a strong fillet-welded joint matter.

Q2. Why go socket weld on a 1 inch line?

On small bore, a socket weld is simply less fuss: the pipe drops into the socket, the hub keeps it aligned, and a fillet weld locks it in. You get a smooth bore and a strong joint without the careful fit-up a butt weld demands, and the joint still opens easily for maintenance.

Q3. Can it really handle hot, high-pressure lines that carry the dangerous stuff?

Yes — that is exactly the duty it is built for. The forged stainless steel body is rated for high-temperature and high-pressure service, and the RF face keeps the seal tight when the line carries flammable or explosive gas or liquid, which is the polite way of saying nothing should leak.

Q4. 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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