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Flanges

Flanges
Flanges
Flanges

We are counted amongst the dependable Manufacturer & supplier of SS Flanges in Mumbai. Customers from various regions of the world are placing bulk orders for the Flanges due to the unmatched quality and unsurpassable performance. The use of optimum quality materials in the Manufacturer & supplier of SS Flanges in Mumbai ensures high durability, tensile strength and resistivity to Highly Corrosive. Moreover, the Flanges are available in various sizes, material, dimensions and finishes meeting the specifications provided.

Materials of Construction
Stainless Steel ASTM A 182, A 240
Grade F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H
Carbon Steel ASTM A 105, ASTM A 181
Alloy Steel ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy 904
Copper Alloys Aluminium, Copper, Brass & Gunmetal
Types Weldneck, Slipon, Blind, Socket Weld, Lap Joint, Spectacles, Ringjoint, Orifcase, Long Weldneck, Deck Flange, etc.
Size 1/8" NB TO 48"NB. (seamless & welded)
Class 150#, 300#,400 #,600#,900#, 1500# & 2500 #.

Types Of Flanges

Weld Neck Flanges

WELDING NECK FLANGES are distinguished from other types by their long tapered hub and gentle transition of thickness in the region of the butt weld joining them to the pipe. Thus this type of flange is preferred for every severe service condition, whether this results from high pressure or from sub-zero or elevated temperature, and whether loading conditions are substantially constant or fluctuate between wide limits.

Blind Flange

BLIND FLANGES are used to blank off the ends of piping, valves and pressure vessel opening. From the standpoint of internal pressure and bolt loading, blind flanges, particularly in the larger sizes, are the most highly stressed of all flange types; however, since the maximum stresses in a blind flange are bending stresses at the center, they can safely be permitted to be higher than in other types of flanges.

Socket Weld Flange

SOCKET WELDING FLANGES were initially developed for use on small size high pressure piping. When provided with an internal weld, their static strength is equal to, but their fatigue strength 50% greater than double welding slip-on flanges.Smooth bore conditions can readily be attained (by grinding the internal weld) without having to bevel the flange face and, after welding, to reface the flange as would be required with slip-on flanges. The internally welded socket type flange is popular in chemical process piping for this reason.

Lap – Joint Flange

LAP JOINT FLANGES are primarily employed with lap joint stubs, the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges. Their pressure-holding ability is little, if any, better than that of slip-on flanges and the fatigue life of the assembly is only one-tenth that of welding neck flanges. The chief use of lap joint flanges in carbon or low alloy steel piping systems is in service necessitating frequent dismantling for inspection and cleaning and where the ability to swivel flanges and to align bolt holes materially simplifies the erection of large diameter or unusually stiff piping. Their use at points where severe bending stress occurs should be avoided.

Slip On flange

SLIP-ON FLANGES continue to be preferred to welding neck flanges by many users on account of their initially lower cost, the reduced accuracy required in cutting the pipe to length, and the somewhat greater ease of alignment of the assembly; however their final installed cost is probably not much, if any, less than that of welding neck flanges.

Their calculated strength under internal pressure is approximately two-thirds that of welding neck flanges, and their life under fatigue is about one-third that of the latter. For these reasons, slip-on flanges are limited to sizes ½” to 2 ½” in the 1500 lb standard and are not shown in the 2500lb standard.