Welding Neck Flange

We Rishabh Industries is one of the leading brand name as a manufacturer, exporters & Suppliers of Premium Quality Range in flanges in Ahmedabad, Gujarat & India.

Weld Neck Flange and Stainless Steel Flanges (Gr. 304, 304L, 316, 316L) from Rishabh Industries are known for their high quality and availability in a range of grades, materials, and finishes in both metric and inch sizes. These Weld Neck Flanges are produced in India and Asia and meet Slip On requirements. They are made of a variety of materials, including carbon steel, stainless steel, alloy steel, duplex steel, monel, hastelloy, and copper nickel.

PRINCIPLES OF FLANGES

Flanges aren't a one-size-fits-all kind of thing. Aside from sizing, choosing the right flange design for your piping system and intended use will ensure dependable operation, a long service life, and the best price.

We Rishabh Industries is one of the leading brand name as a manufacturer, exporters & Suppliers of Premium Quality Welding Neck Flanges

Welding the pipe to the pipe flange's neck allows for the connection of weld neck pipe flanges to pipes, which helps transfer stress from the weld neck to the pipes themselves. By doing this, the weld neck pipe flanges' base hub's high stress concentration is also lessened. In high pressure situations where hot or cold temperatures are present, weld neck pipe flanges are typically used. Weld neck pipe flanges are machined with inside diameters that correspond to the pipe's interior diameter.

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Available Range :

Technical Specifications :

Size : 1/2″ (15 NB) to 48″ (1200NB)

Standards : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Pressure Ratings : Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Weld Neck Flanges : ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Weld Neck Flanges : ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L

Alloy Steel Weld Neck Flanges : ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Weld Neck Flanges : Duplex, Super Duplex, Nickel Alloys Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Coating/Surface Treatment : Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Value Added Services : CNC Machining, Customised Flanges

Specification/ Dimension of Welding Neck Flanges :

ANSI, ASME, ASA, B16.5 150lb/sq.in. WELDING NECK FLANGE RF
ø	D	b	g	m	a	J*	h	k	Holes	l	Kg.
1/2"	88,9	11,1	34,9	30,2	21,3	15,7	47,6	60,3	4	15,9	0,500
3/4"	98,4	12,7	42,9	38,1	26,7	20,8	52,4	69,8	4	15,9	0,700
1"	107,9	14,3	50,8	49,2	33,5	26,7	55,6	79,4	4	15,9	1100
1 1/4"	117,5	15,9	63,5	58,8	42,2	35,1	57,1	88,9	4	15,9	1500
1 1/2"	127,0	17,5	73,0	65,1	48,3	40,9	61,9	98,4	4	15,9	1800
2"	152,4	19,0	92,1	77,8	60,3	52,6	63,5	120,6	4	19,0	2700
2 1/2"	177,8	22,2	104,8	90,5	73,1	62,7	69,8	139,7	4	19,0	4400
3"	190,5	23,8	127,0	107,9	88,9	78,0	69,8	152,4	4	19,0	5200
3 1/2"	215,9	23,8	139,7	122,2	101,6	90,2	71,4	177,8	8	19,0	6400
4"	228,6	23,8	157,2	134,9	114,3	102,4	76,2	190,5	8	19,0	7500
5"	254,0	23,8	185,7	163,5	141,2	128,3	88,9	215,9	8	22,2	9200
6"	279,4	25,4	215,9	192,1	168,4	154,2	88,9	241,3	8	22,2	11000
8"	342,9	28,6	269,9	246,1	219,1	202,7	101,6	298,4	8	22,2	18300
10"	406,4	30,2	323,8	304,8	273,0	254,5	101,6	361,9	12	25,4	25000
12"	482,6	31,7	381,0	365,1	323,8	304,8	114,3	431,8	12	25,4	39000
14"	533,4	34,9	412,7	400,0	355,6	336,5	127,0	476,2	12	28,6	51000
16"	596,9	36,5	469,9	457,2	406,4	387,3	127,0	539,7	16	28,6	60000
18"	635,0	39,7	533,4	504,8	457,2	438,1	139,7	577,8	16	31,7	71000
20"	698,5	42,9	584,2	558,8	508,0	488,9	144,5	635,0	20	31,7	88000
22"	749,3	46,0	641,2	609,6	558,8	539,7	149,2	692,1	20	34,9	102000
24"	812,8	47,6	692,1	663,6	609,6	590,5	152,4	749,3	20	34,9	119000
*	The data "J" corresponds to the STD schedule

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