SOCKET WELD FLANGES

Socket-weld pipe flanges are typically used on smaller sizes of high pressure pipes.  These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top.  This allows for a smooth bore and better flow of the fluid or gas inside of the pipe.   Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24".  Coastal Flange provides Socket Weld pipe flanges in all material grades, specifications and sizes.         Socket Weld pipe flanges are typically provided with a raised face, flat face, or RTJ facing.  When a raised face is necessary for socket weld pipe flanges, the standard height is 1/16" for socket weld pipe flanges under 400#.  For socket weld pipe flanges of 400# and up, the standard socket weld pipe flange raised face height is 1/4".          Coastal Flange manufactures socket weld pipe flanges in all steel material grades, including carbon socket weld pipe flanges, stainless steel socket weld pipe flanges and alloy socket weld pipe flanges.  Coastal Flange also has many different socket weld pipe flanges in stock and ready to ship.

THREADED FLANGES

Threaded pipe flanges are similar to slip-on pipe flanges except the bore of threaded pipe flange has tapered threads.  Threaded pipe flanges are used with pipes that have external threads.  The benefit of these pipe flanges is that it can be attached without welding.  Threaded pipe flanges are often used for small diameter, high pressure requirements.  Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24".  Coastal Flange provides Slip-On pipe flanges in all material grades, specifications and sizes. Threaded pipe flanges are typically provided with a raised face, flat face, or RTJ facing.  When a raised face is necessary for threaded pipe flanges, the standard height is 1/16" for threaded pipe flanges under 400#.  For threaded pipe flanges of 400# and up, the standard threaded pipe flange raised face height is 1/4".  Coastal Flange manufactures threaded pipe flanges in all steel material grades, including carbon threaded pipe flanges, stainless steel threaded pipe flanges and alloy threaded pipe flanges.  Coastal Flange also has many different threaded pipe flanges in stock and ready to ship.

LAP JOINT FLANGES

Lap Joint Pipe Flanges slide over the pipe and are most commonly used with Stub End Fittings.  A pipe is typically welded to the Stub End and the Lap Joint pipe flange is free to rotate around the stub end.  The benefit of this is that there will not be any issues with bolt hole alignment.  Lap Joint pipe flanges are often used for applications that require frequent dismantling.  Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24".  Sizes above 24" are produced as lap joints to slip on dimensions.  Coastal Flange provides Lap Joint pipe flanges in all material grades, specifications and sizes.  Coastal Flange manufactures lap joint pipe flanges in all steel material grades, including carbon lap joint pipe flanges, stainless steel lap joint pipe flanges and alloy lap joint pipe flanges.  Coastal Flange also has many different lap joint pipe flanges in stock and ready to ship.  Coastal Flange can also manufacture custom pipe flanges according to customer specifications.

WELD NECK FLANGES

Weld neck pipe flanges attach to the pipe by welding the pipe to the neck of the pipe flange.  The allows for the transfer of stress from the weld neck pipe flanges to the pipe itself.  This also reduces high stress concentration at the base of the hub of the weld neck pipe flanges.  Weld neck pipe flanges are often used for high pressure applications.  The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe.  Weld Neck Pipe flanges with a hub have published specifications that range from 1/2" thru 96".  Coastal Flange provides Weld Neck pipe flanges in all material grades, specifications and sizes.         Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing.  When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16" for weld neck pipe flanges under 400#.  For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4".          Coastal Flange manufactures weld neck pipe flanges in all steel material grades, including carbon weld neck pipe flanges, stainless steel weld neck pipe flanges and alloy weld neck pipe flanges.  Coastal Flange also has many different weld neck pipe flanges in stock and ready to ship.  Weld neck pipe flanges in stock include ANSI B16.5 weld neck pipe flanges, ASME B16.47 Series "A" weld neck pipe flanges, ASME B16.47 Series "B" weld neck pipe flanges, Pressure Vessel weld neck pipe flanges.  Coastal Flanges also manufactures custom weld neck pipe flanges per customer requirements.

SLIP-ON FLANGES

Slip on pipe flanges actually slip over the pipe.  These pipe flanges are typically machined with an inside diameter slightly larger than the outside diameter of the pipe.  Slip on pipe flanges are secured to the pipe with a fillet weld at the top and the bottom of the slip on pipe flanges.          Slip on pipe flanges are typically provided with a raised or flat face.  When a raised face is necessary for slip on pipe flanges, the standard height is 1/16" for slip on pipe flanges under 400#.  For slip on pipe flanges of 400# and up, the standard slip on pipe flange raised face height is 1/4".          Coastal Flange manufactures slip on pipe flanges in all steel material grades, including carbon slip on pipe flanges, stainless steel slip on pipe flanges and alloy slip on pipe flanges.  Coastal Flange also has many different slip on pipe flanges in stock and ready to ship.  Slip on pipe flanges in stock include AWWA slip on pipe flanges, ANSI slip on pipe flanges, Pressure Vessel slip on pipe flanges and slip on pipe flanges that match the OD and drilling of ASME flanges.

INTRODUCTION TO PIPE FLANGES

Pipe Flanges

A pipe flange is disc, collar or ring that attaches to pipe with the purpose of providing increased support for strength, blocking off a pipeline or implementing the attachment of more items.  Pipe flanges are usually welded or screwed to the pipe end and are connected with bolts.  A gasket is inserted between the two mating flanges to provide a tighter seal.  Pipe flanges are either custom with dimenions provided by the customer or they are manufactured according to published specifications.  Several organizations and associations have published specifications that provide dimensional information as well as pressure specifications at different temperatures.  Coastal Flange manufactures custom flanges and stocks 6 basic types of pipe flanges.  Although, these are the 6 most common types of pipe flanges, Coastal Flange is a custom flange manufacturer as well and is able to create just about any type of flange necessary for your requirements.  Please click on one of the following pictures for a more detailed description of the pipe flanges you are interested in.  Each page also has a video that provides a better understanding of how the pipe flanges are connected to the pipe.

TEE

Reducing Tee

Size : 1/2"NB TO 48"NB IN

Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Type : Seamless / ERW / Welded / Fabricated

Form : Equal Tee, Reducing Tee, Barred Tee , Lateral Tee

Materials
Stainless Steel Tee – SS Tee
ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L

Carbon Steel Tee – CS Tee
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel Tee – LTCS Tee
ASTM A420 WPL3 / A420WPL6

Alloy Steel Tee – AS Tee
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel Tee
ASTM A 815 UNS NO S 31803 , S 32205.

Nickel Alloy Tee
Standard

• ASTM / ASME SB 336
• UNS 10276 (Hastelloy C 276 Tee)
• UNS 2200 (NICKEL 200 Tee),
• UNS 2201 (NICKEL 201 Tee),
• UNS 4400 (MONEL 400 Tee),
• UNS 8020 (ALLOY 20 / 20 Tee),
• UNS 8825 Inconel (825 Tee),
• UNS 6600 (Inconel 600 Tee),
• UNS 6601 (Inconel 601 Tee),
• UNS 6625 (Inconel 625 Tee),

Tags :
 Equal Tee Reducing Tee Barred Tee

Test Certificate
Mill Test Certificate as per EN 10204 / 3.1B

ELBOW

Pipe Elbow

Size : 1/2"NB TO 48"NB IN

Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Type : Seamless / ERW / Welded / Fabricated

Form : 45 Deg Elbow, 90 Deg Elbow, 180 Deg Elbow, Short Radius, Long Radius, Any required deg.

Materials
Stainless Steel Elbow – SS Elbow
ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L

Carbon Steel Elbow – CS Elbow
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel Elbow – LTCS Elbow
ASTM A420 WPL3 / A420WPL6

Alloy Steel Elbow – AS Elbow
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel Elbow
ASTM A 815 UNS NO S 31803 , S 32205.

Nickel Alloy Elbow 
Standard

• ASTM / ASME SB 336.
• UNS 10276 (Hastelloy C 276 Elbow)
• UNS 2200 (NICKEL 200 Elbow),
• UNS 2201 (NICKEL 201 Elbow),
• UNS 4400 (MONEL 400 Elbow),
• UNS 8020 (ALLOY 20 / 20) CB 3,
• UNS 8825 Inconel (825 Elbow),
• UNS 6600 (Inconel 600 Elbow),
• UNS 6601 (Inconel 601 Elbow),
• UNS 6625 (Inconel 625 Elbow),

Tags :SR & LR Elbow SS Elbow 90 Deg Elbow 45 Deg Elbow 180 Deg Elbow

Test Certificate
Mill Test Certificate as per EN 10204 / 3.1B