Threaded

Threaded pipe flanges are similar to slip-on pipe flanges except for 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 they can be attached without welding. Threaded pipe flanges are often used for small diameter, high-pressure requirements.

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?. Today, threaded flanges are used almost exclusively for utility services such as instrument air, plant air, nitrogen, potable, and raw water.

Coastal 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 also has many different threaded pipe flanges in stock and ready to ship.

The Socket weld Flange is similar to the Slip-on Flange as the pipe slips inside the Flange into a socket and is secured with a fillet weld at the hub on the backside of the flange. Per ASME B31.3 Socket weld Flanges are only to be used in non-critical applications where pressure, temperature, or product corrosion is not an issue.

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.