Carbon Steel Long Weld Neck Flanges

Carbon steel Long Weld Neck "LWN" flange connection is the lightest and most economical of standard connections, typically forged flange connection for the pressure vessel connections where a minimum of reinforcing area is required. These Carbon steel flanges have have a uniform Long Weld Necks barrel outside diameter that provides a nut relief clearance between the connection neck and the nut. Lengths of these Carbon steel forged LWN flanges can be increased to allow for any offset, "hillside" or heads or tangential location attachment on pressure vessel shells etc. Contoured bottoms can be manufactured and supplied on request.

We are one India's one of the leading manufacturers of quality Carbon steel Long Weld Neck "LWN" flange connection in a vast range of Carbon steel materials and pressure class covering complete size range as well.

All Carbon steel Flange dimensions and drilling are in accordance with ASME B16.5. Bolt holes will straddle natural centerlines, unless specified otherwise. Studs, bolts, nuts, and gaskets are not supplied along with flanges but can be supplied upon special request. All these Carbon steel standard connection flanges over pressure class 300 rating are manufactured and supplied in the normalized condition to fulfill the requirements of ASME Section II. Any other heat treatment requirements, if any, can be done upon request on extra actual cost.

We are manufacturers and suppliers of Carbon Steel long weld neck flanges in india from more than two decades. These flanges are being made from carbon steel forgeable solid bars. Looking wise the neck of these flanges is too toll and that is why it is called carbon steel long weld neck flanges.

These flanges are also been called LWNRF Flanges in short name and the complete name of the same is Long Weld Neck Raised Face Flanges. Normally the neck of these flanges varies from 150 mm to 250 mm depending upon it's size and pressure rating being asked by the engineer to suit the project requirement. These flanges can not be manufactured from plates or circles as what in the case of SORF Flanges-Slip on Raised Face Flanges or even WNRF Flanges - Weld Neck Raised Face Flanges because of it's very long neck. These type of flanges are easily being manufactured from the appropriate diameter round bars. In fact this process is economical and viable method to manufactureLong Weld Neck Flanges in Carbon Steel.

We are supplying these Long weld neck flanges in export worthy packaging to safeguard the flanges up to site location.

We undertake the order of these flanges from 1/2" NB to 24" NB and in pressure rating from low pressure 150# to high pressure 2500#.

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 150

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 300

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 400

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 600

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 900

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 1500

Dimensional and weight information of ASTM A105 Carbon steel Long 
Weld Neck Forged flange Class 2500

We do manufacture and supply these flanges in hot dip galvanized condition with micron layer certifying self certified certificate to ensure best quality hot dip galvanized forged flanges from our end.

• Oil and Gas Industries
• Water and Waste water treatment Plants
• Ship building Industries
• Marine Industries
• Offshore Industries