Products
STANDARD FLANGES
Weld Neck Flanges
ASME B16.5 I ASME B16.47 I ASME B16.36
A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plants.
Blind Flanges
DIN Standards ASME B16.5
A blind flange is a solid flange as shown in above Picture. The purpose of these is to block off a section of pipe or a nozzle on a vessel that is not used. (A nozzle is typically a pipe coming out of a vessel and is usually flanged so it can be connected to valves or piping).
Slip-On Flanges
ASME B16.5
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″.
Socket Weld Flanges
ASME B16.5
Socket weld flange are typically used on smaller sizes of high-pressure pipes. These socket-weld 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.
Screwed Flanges
ASME B16.5
Threaded Flange are also known as a screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe. Threaded Flanges are mostly used in utility services such as air and water.
Fig-8 (Spectacle Blind)
ASME B16.48
Spectacle and line blind flange are similar to a blind flange but different because they fit between two flanges. Spectacle blind gets their name from similarity to pair or eye glasses. Once side of Spectacle Blind Flange is fully closed for complete flow shuts off, whereas the other end is open for full flow.
Spacer (Ring) & Spade (Blind)
ASME B16.48
Spade and Ring Spacer Flange are basically the same as Spectacle Blinds, except that they both are not attached to each other. Spades and Spacers be used in systems where the maintenance is not often necessary, or it is also used in applications with large pipe sizes.
Long Weld Neck
ASME B16.5
Long Neck Welding flange (LWN) are similar to a standard Welding Neck flange, but the “Neck” is considerably longer. These Long Weld Neck Flange is often used as a nozzle for a barrel or column. In addition, there are the type LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have a different shape and a thicker “Wall”.
Lap Joint Flanges
ASME B16.5
Lap joint flange use a stub end that is welded to the pipe.
STUB ENDS
ASME B 16.9
A ring flange fits loosely around the stub end, permitting easy flange alignment of the bolt holes. A lap joint flange is also called Van Stone or Stub Flange. The stub ends are available in three styles (Types A, B, and C) and two lengths (Short and Long).
STANDARD FLANGES
As Per Customer Requirement (AWWA)
Ring Flanges
A ring flange is a specialized pipe-joining flange that makes use of a compressible ring to ensure a secure seal. The ring may be made of a variety of materials, including various grades of rubber, fibre packing’s, and metals. When tensioned, the ring is located in a shallow groove cut into the face of flange plates.
Girth Flanges
Girth flanges are used for mating two segments of a pressure vessel. These parts are also widely used in shell and tube heat exchangers and other process equipment to mate various components. There are two common kinds of girth flange such as welded hub joint, loose type (without hub).
Lip Type Flanges
The function of a Lip type flange is to reduce the concentration of stress on the tube or pipe. In addition to uniformly dispersing stresses, the other function of this device is to resist deformation.
Fig-8 (Spectacle Blind)
A figure-8 blank (also called a Spectacle Blind Flange) is+ a pressure-retaining plate with one solid end and one open end connected with a web or tie bar.
CUSTOMIZED FORGINGS
Drip Ring
Bleed rings aka Drip rings are placed inside the circular bolts between flanges, mainly to drain or bleed of excess liquid via a valve, thus minimizing the effects of corrosion in steel pipes.
Tube Sheets & Blinds
The blind flange is basically a flange that does not have a hub or a bored centre. Blind flanges have the face thickness of a flange, a matching face type, and similar bolting pattern. Blind flanges can also be used to seal a nozzle opening on a pressure vessel.
Shafts
A driving coupling between rotating shafts that consists of flanges (or half couplings) one of which is fixed at the end of each shaft, the two flanges being bolted together with a ring of bolts to complete the drive.
Nozzles/ SR Nozzles
Also known as nozzle flanges or “long neck” flanges, these items were designed specifically with the pressure vessel and tank fabrication industry in mind. They are usually made as a one-piece construction with the intention of replacing a standard weld neck and pipe weld combination.
Weldolet & Sockolet
A Sockolet is similar to a Weldolet, with the difference that the branch pipe is connected to the run pipe, via the fitting, with a socket weld connection as per ASME B16.11. Likewise Weldolets, Sockolets are used to make a 90-degree pipe branch. Sockolets may be “size on size” or “reducing”.