Stainless Steel Threaded Flange

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Searching for an Indian NPT Threaded Flange manufacturer? We manufacture Screwed Flange in stainless steel, alloy steel, nickel, carbon steel, hastelloy, titanium, monel, copper, and aluminium up to Class 2500.


What Is Threaded Flange?
The female NPT thread in the centre of the threaded flanges, sometimes referred to as screw flanges or threaded screws, links to the male NPT installed on the threaded pipe. They mostly function as a reducing connection. Although they can be adjusted up to a size of 24", they are often offered in the nominal pipe size range of 12" to 6". Without using any welding, the male end of the pipe is connected to the female end that is inserted into the flange. But if necessary, a welding operation can easily seal them. The aim of getting a threaded flange, which is simple to assemble and disassemble, would be defeated by welding, though. However, for the pressure vessel equipment, if the user is certain that they would keep it sealed permanently, then welding connections would be the perfect choice.
When welding is not an option for pipes due to safety concerns like explosion, threaded flanges are typically employed. This means that extremely explosive or reactive liquids and gases are ideal for threaded connections. They can be effectively employed in situations where space is limited.

Manufacturing Process Of Carbon Steel Threaded Flange
The Carbon Steel Threaded Flange is manufactured by machining from a forging. Their dimensions can be customized according to the specific requirements.

Threaded Flange Vs Welded Flange
In contrast to the welded flange, which is connected by welding, the threaded flange is essentially screwed to link with the piping connection. When welding is not an option, like on pipes carrying explosive or dangerous gas or liquid, the threaded flange is typically employed in these situations. Additionally, the weld flange requires more room than the threaded flange.

How Does A Stainless Steel Threaded Flange Work?
In essence, a stainless steel threaded flange is fitted into the piping system. The make thread is mounted on the pipes, while the female NPT thread is mounted on the flange. Generally speaking, they are utilised in places where welded flanges are not. However, in some instances, minor welds may be placed to them to increase their strength.

How To Install A Screwed Flange?
As the name implies, screwed flanges are joined to the piping system by screws. They are commonly referred to as threaded flanges. It is crucial to keep in mind that power equipment should be used to achieve correct engagement while working with such flanges of class or higher. The end of the would be brought closer to the flange face as a result.

Stainless Steel Threaded Flange

Stainless Steel Threaded Flange

Manufacturers of PN10 and PN16 ASTM A105 Male Threaded Flange accredited to European Directive 2014/68/eu offer a variety of A516 Gr.70 BSP Threaded Flange in Mumbai.


Dimensions  ASME B16.5, ASME B16.47 Series A & B, MSS SP44
Size 1/2" to 48"
Class 300 LBS, 150 LBS, 900 LBS, 600 LBS, 1500 LBS, 2500 LBS
JIS 5K, 16 K 10 K, 20 K, 40 K, 30 K, 63 K
UNI 6Bar 16Bar 10Bar 25Bar 40Bar
Coating/Surface Treatment By Manufacturer Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
EN 6Bar 25Bar 10Bar 40Bar 16Bar
BS BS4504 , BS4504, BS1560, BS10
Flange Face Type Provided By Manufacturer RF (Raised Face), RTJ (Ring Type Joint)
Value Added Services CNC Machining, Customised Flanges
Making Methods Provided By Manufacturer Casting And Forging
Rolling And Cutting
Flanges Test Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flanges Equipment Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Outer diameters 1/2” to 24”
Standards Provided By Manufacturer EN-1092, DIN, API7S-43, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, API7S-15, JISB2220, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092
Stainless Steel ASTM A182 Gr. 304, 304L, 309, 316, 310, 316L, 317L, 321, 347, 904L
Duplex Steel ASTM A 182, ASME SA 182 UNS NO S31803, S32205. Werkstoff No. 1.4462
Carbon Steel High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80), A181 LF2, A105N, ASTM A350 LF2 / ASME SA350, ASTM/ASME A/SA105 A/SA105N & ASTM A105 / ASME SA105, P235GH, P245GH, P250GH, RST37.2, C22.8, S235JR, ST37, A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Copper Nickel Cupro Nickel 70/30 (C71500), Copper Nickel 90/10 (C70600 ), ASTM / ASME SB 62 / 151 / 61 / 152, UNS C71640
Nickel Alloy ASTM / ASME SB 564 UNS 4400 (MONEL 400 ), UNS 2200 ( NICKEL 200 ), UNS 8825 INCONEL (825), UNS 2201 (NICKEL 201 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 6600 (INCONEL 600 ), UNS 10276 ( HASTELLOY C 276 )
Alloy Steel F11, F12, F5, F9, F22, F91
Other Titanium, Aluminium, 254 SMO
CLass 150 300 600 900 1500 2500
DIA
A
303838383843
DIA
D
909595120120135
THK
B
9.612.714.322.322.330.2
11.214.320.728.728.736.6
DIA
G
35.135.135.135.135.135.1
DIA
K
60.366.766.782.682.688.9
H142122323240
15.622.628.438.438.446.4
NO.
L
444444
DIA
L
15.915.915.922.222.222.2
Stud Bolts Diameter x Length
DIA
( in)
1/21/21/23/43/43/4
Lenght
( mm)
556575110110120

Deliver nondestructive (NDT) technique Stainless Steel Flat Face Threaded Flange and ASTM A350 LF2 RTJ Screwed Flange

UNI 2253 PN6 Threaded Flange

  FlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
Rated
Diameter
d1ThreadDbkh1d3d4fNumberThreadd2Kg
1521,3R 1/280125520304024M 10110,373
2026,9R 3/490146524405024M 10110,59
2533,7R 1100147524506024M 10110,743
3242,4R 1 1/4120149026607024M 12141,05
4048,3R 1 1/21301410026708034M 12141,2
5060,3R 21401411028809034M 12141,37
6576,1R 2 1/2160141303210011034M 12141,92
8088,9R 3190161503411012834M 16182,82
100114,3R 4210161703813014834M 16183,19
125139,7R 5240182004016017838M 16184,47
150165,1R 6265182254418520238M 16185,3

UNI 2254 PN6 Threaded Flange

Rated
Diameter
d1FlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
ThreadDbkh1d3d4fNumberThreadd2Kg
1521,3R 1/295146520354524M 12140,613
2026,9R 3/4105167524455824M 12140,91
2533,7R 1115168524526824M 12141,1
3242,4R 1 1/41401610026607824M 16181,6
4048,3R 1 1/21501611026708834M 16181,78
5060,3R 216518125288510234M 16182,43
6576,1R 2 1/2185181453210512234M 16183,18
8088,9R 3200201603411813838M 16184,12
100114,3R 4220201803814015838M 16184,47
125139,7R 5250222104016818838M 16186,13
150165,1R 6285222404419521238M 20227,92
Rated
Diameter
 FlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
d1ThreadDbkh1d3d4fHolesThreadd2Kg
1521,3R 1/280125520304024M 10110,373
2026,9R 3/490146524405024M 10110,59
2533,7R 1100147524506024M 10110,743
3242,4R 1 1/4120149026607024M 12141,05
4048,3R 1 1/21301410026708034M 12141,2
5060,3R 21401411028809034M 12141,37
6576,1R 2 1/2160141303210011034M 12141,92
8088,9R 3190161503411012834M 16182,82
100114,3R 4210161703813014834M 16183,19
125139,7R 5240182004016017838M 16184,47
150165,1R 6265182254418520238M 16185,3
Purchase Stainless Steel BSP Screwed Flange and Raised/Flat Face Duplex UNS S31803 NPT Female Threaded Flange at Unbeatable Prices in Maharashtra.

EN 1092-1 Type 13 Threaded Flange

EN 1092-1 TYPE 13 PN6 THREADED FLANGE
Rated DiameterFlangeNeckRaised faceScrews

Weight
(7,85 Kg/dm3)

d1ThreadkDbh1d3d4fd2ThreadBolt holesKG
1521,3R 1/2"5580122030,040,02,011M1040,373
2026,9R 3/4"6590142440,050,02,011M1040,584
2533,7R 1"75100142450,060,02,011M1040,729
3242,4R 1-1/4"90120142660,070,02,014M1241,040
4048,3R 1-1/2"100130142670,080,03,014M1241,200
5060,3R 2"110140142880,090,03,014M1241,340
6576,1R 2-1/2"1301601432100,0110,03,014M1241,830
8088,9R 3"1501901634110,0128,03,018M1642,750
100114,3R 4"1702101640130,0148,03,018M1643,010
125139,7R 5"2002401844160,0178,03,018M1684,300
150168,3R 6"2252651844185,0202,03,018M1684,630
Stainless Steel Lap Joint Flange Price Per Piece in India Lap Joint Flange Price in INR Loose Flange Price in UAE Dirham Vanstone Flange Price in USD
18-8 STAINLESS STEEL FLANGE HEX NUT TO DIN 6923, RIGHT THREAD Per Kg 332 UAE Dirham 16.39 $4.46
STAINLESS STEEL CF-FLANGE KIT DN100 HEX-HEAD Per Piece 5,622 UAE Dirham 277.60 $75.58

Class 150 Threaded Flange

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2"0.93"3.50"2.38"1.38".063"1.19".62".38".56".62"4
3/4"1.14"3.88"2.75"1.69".063"1.50".62".44".56".62"4
1"1.41"4.25"3.12"2.00".063"1.94".69".50".63".62"4
1-1/4"1.75"4.62"3.50"2.50".063"2.31".81".56".75".62"4
1-1/2"1.99"5.00"3.88"2.88".063"2.56".88".62".82".62"4
2"2.50"6.00"4.75"3.62".063"3.06"1.00".69".94".75"4
2-1/2"3.00"7.00"5.50"4.12".063"3.56"1.12".82"1.06".75"4
3"3.63"7.50"6.00"5.00".063"4.25"1.19".88"1.13".75"4
3-1/2"4.13"8.50"7.00"5.50".063"4.81"1.25".88"1.19".75"8
4"4.63"9.00"7.50"6.19".063"5.31"1.31".88"1.25".75"8
5"5.69"10.00"8.50"7.31".063"6.44"1.44".88"1.38".88"8
6"6.75"11.00"9.50"8.50".063"7.56"1.56".94"1.50".88"8
8"8.75"13.50"11.75"10.62".063"9.69"1.75"1.06"1.69".88"8
10"10.88"16.00"14.25"12.75".063"12.00"1.94"1.13"1.88"1.00"12
12"12.94"19.00"17.00"15.00".063"14.38"2.19"1.19"2.13"1.00"12
14"14.19"21.00"18.75"16.25".063"15.75"2.25"1.32"2.19"1.12"12
16"16.19"23.50"21.25"18.50".063"18.00"2.50"1.38"2.44"1.12"16
18"18.19"25.00"22.75"21.00".063"19.88"2.69"1.50"2.63"1.25"16
20"20.19"27.50"25.00"23.00".063"22.00"2.88"1.63"2.83"1.25"20
22"22.19"29.50"27.25"25.25".063"24.25"3.13"1.75"3.07"1.38"20
24"24.19"32.00"29.50"27.25".063"26.12"3.25"1.82"3.19"1.38"20
FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2"0.93"3.75"2.62"1.38".063"1.50"0.88"0.50"0.82"0.62"4
3/4"1.14"4.62"3.25"1.69".063"1.88"1.00".056"0.94"0.75"4
1"1.41"4.88"3.50"2.00".063"2.12"1.06"0.63"1.00"0.75"4
1-1/4"1.75"5.25"3.88"2.50".063"2.50"1.06"0.69"1.00"0.75"4
1-1/2"1.99"6.12"4.50"2.88".063"2.75"1.19"0.75"1.13"0.88"4
2"2.50"6.50"5.00"3.62".063"3.31"1.31"0.82"1.25"0.75"8
2-1/2"3.00"7.50"5.88"4.12".063"3.94"1.50"0.94"1.44"0.88"8
3"3.63"8.25"6.62"5.00".063"4.62"1.69"1.06"1.63"0.88"8
3-1/2"4.13"9.00"7.25"5.50".063"5.25"1.75"1.13"1.69"0.88"8
4"4.63"10.00"7.88"6.19".063"5.75"1.88"1.19"1.82"0.88"8
5"5.69"11.00"9.25"7.31".063"7.00"2.00"1.32"1.94"0.88"8
6"6.75"12.50"10.62"8.50".063"8.12"2.06"1.38"2.00"0.88"12
8"8.75"15.00"13.00"10.62".063"10.25"2.44"1.56"2.38"1.00"12
10"10.88"17.50"15.25"12.75".063"12.62"2.62"1.82"2.56"1.12"16
12"12.94"20.50"17.75"15.00".063"14.75"2.88"1.94"2.82"1.25"16
14"14.19"23.00"20.25"16.25".063"16.75"3.00"2.06"2.94"1.25"20
16"16.19"25.50"22.50"18.50".063"19.00"3.25"2.19"3.19"1.38"20
18"18.19"28.00"24.75"21.00".063"21.00"3.50"2.32"3.44"1.38"24
20"20.19"30.50"27.00"23.00".063"23.12"3.75"2.44"3.69"1.38"24
22"22.19"33.00"29.25"25.25".063"25.25"4.00"2.57"3.94"1.63"24
24"24.19"36.00"32.00"27.25".063"27.62"4.19"2.69"4.13"1.62"24
Check out the standard details and costs for black pipe threaded flanges and stainless steel screwed flanges in India
FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) H Raised Face Thickness (T) T1 Flat Face Thickness (T2) Bolt Hole (B) No. of Bolt Holes
1/2" 0.93" 3.75" 2.62" 1.38" .250" 1.50" 1.13" 0.56" 0.88" 0.62" 4
3/4" 1.14" 4.62" 3.25" 1.69" .250" 1.88" 1.25" 0.62" 1.00" 0.75" 4
1" 1.41" 4.88" 3.50" 2.00" .250" 2.12" 1.31" 0.69" 1.06" 0.75" 4
1-1/4" 1.75" 5.25" 3.88" 2.50" .250" 2.50" 1.37" 0.81" 1.12" 0.75" 4
1-1/2" 1.99" 6.12" 4.50" 2.88" .250" 2.75" 1.50" 0.88" 1.25" 0.88" 4
2" 2.50" 6.50" 5.00" 3.62" .250" 3.31" 1.69" 1.00" 1.44" 0.75" 8
2-1/2" 3.00" 7.50" 5.88" 4.12" .250" 3.94" 1.87" 1.12" 1.62" 0.88" 8
FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) H Raised Face Thickness (T) T1 Flat Face Thickness (T2) Bolt Hole (B) No. of Bolt Holes
1/2" 0.93" 4.75" 3.25" 1.38" .250" 1.50" 1.50" 0.88" 1.25" 0.88" 4
3/4" 1.14" 5.13" 3.50" 1.69" .250" 1.75" 1.63" 1.00" 1.38" 0.88" 4
1" 1.41" 5.88" 4.00" 2.00" .250" 2.06" 1.88" 1.13" 1.63" 1.00" 4
1-1/4" 1.75" 6.25" 4.38" 2.50" .250" 2.50" 1.88" 1.13" 1.63" 1.00" 4
1-1/2" 1.99" 7.00" 4.88" 2.88" .250" 2.75" 2.00" 1.25" 1.75" 1.13" 4
2" 2.50" 8.50" 6.50" 3.63" .250" 4.13" 2.50" 1.50" 2.25" 1.00" 8
2-1/2" 3.00" 9.63" 7.50" 4.13" .250" 4.88" 2.75" 1.63" 2.50" 1.13" 8
3" 3.63" 9.50" 7.50" 5.00" .250" 5.00" 2.38" 1.50" 2.13" 1.00" 8
4" 4.63" 11.50" 9.25" 6.19" .250" 6.25" 3.00" 1.75" 2.75" 1.25" 8
5" 5.69" 13.75" 11.00" 7.31" .250" 7.50" 3.38" 3.00" 3.13" 1.38" 8
6" 6.75" 15.00" 12.50" 8.50" .250" 9.25" 3.63" 2.19" 3.38" 1.25" 12
8" 8.75" 18.50" 15.50" 10.63" .250" 11.75" 4.25" 2.50" 4.00" 1.50" 12
10" 10.88" 21.50" 18.50" 12.75" .250" 14.50" 4.50" 2.75" 4.25" 1.50" 16
12" 12.94" 24.00" 21.00" 15.00" .250" 16.50" 4.88" 3.13" 4.63" 1.50" 20
14" 14.19" 25.25" 22.00" 16.25" .250" 17.75" 5.38" 3.38" 5.13" 1.63" 20
16" 16.19" 27.75" 24.25" 18.50" .250" 20.00" 5.50" 3.50" 5.25" 1.75" 20
18" 18.19" 31.00" 27.00" 21.00" .250" 22.25" 6.25" 4.00" 6.00" 2.00" 20
20" 20.19" 33.75" 29.50" 23.00" .250" 24.50" 6.50" 4.25" 6.25" 2.13" 20
24" 24.19" 41.00" 35.50" 27.25" .250" 29.50" 8.25" 5.50" 8.00" 2.63" 20
  • Outside Diameter *
  • Tolerances not listed in ASME B16.5 2013
  • ≤ 24 = 1.6 mm
  • > 24 = ± 3.2 mm

  • Length thru Hub
  • ≤ 18 = + 3.2 mm / - 0.8 mm
  • ≥ 20 = + 4.8 mm / - 1.6 mm
Purchase competitively priced Cast Iron Screwed Flange and ASTM A182 F304/ F316/L Threaded Flange directly from Indian suppliers
Stainless Steel Threaded Flange

Stainless Steel Threaded Flange

Carbon Steel Threaded Flange

Carbon Steel Threaded Flange

Duplex Screwed Flange

Duplex Screwed Flange

Super Duplex Flat Face Threaded Flange

Super Duplex Flat Face Threaded Flange

Titanium Female Threaded Flange

Titanium Female Threaded Flange

Mild Steel Male Threaded Flange

Mild Steel Male Threaded Flange

Nickel Alloy Threaded Flanges

Nickel Alloy Threaded Flanges

Inconel Bsp Threaded Flange

Inconel Bsp Threaded Flange

Hastelloy Male Threaded Flange

Hastelloy Male Threaded Flange

Gi RF Threaded Flange

Gi RF Threaded Flange

Alloy Steel Class 150 Threaded Flange

Alloy Steel Class 150 Threaded Flange

ASTM A105 Class 300 Threaded Flange

ASTM A105 Class 300 Threaded Flange

ASTM A516 Gr.70 Class 900 Threaded Flange

ASTM A516 Gr.70 Class 900 Threaded Flange

ASTM A182 F316 Dn50 Threaded Flange

ASTM A182 F316 Dn50 Threaded Flange

ASTM A182 F304 Npt Threaded Flange

ASTM A182 F304 Npt Threaded Flange

ASTM A350 LF2 Pn16 Threaded Flange

ASTM A350 LF2 Pn16 Threaded Flange

UNS S31803 Female Threaded Flange

UNS S31803 Female Threaded Flange

A182 F11 Male Threaded Flange

A182 F11 Male Threaded Flange

Stainless Steel 304 Threaded Flanges

Stainless Steel 304 Threaded Flanges

316 Stainless Steel Bsp Threaded Flange

316 Stainless Steel Bsp Threaded Flange

Aluminum Threaded Flange

Aluminum Threaded Flange

Brass Threaded Flange

Brass Threaded Flange

Cast Iron Threaded Flange

Cast Iron Threaded Flange

Black Pipe Threaded Flange

Black Pipe Threaded Flange

Copper Threaded Flange

Copper Threaded Flange

Ductile Iron Threaded Flange

Ductile Iron Threaded Flange

Din 2566 Threaded Flange

Din 2566 Threaded Flange

If the threaded pipe flange can be precisely measured, the following information is required:

  • O: Outside Diameter of flange
  • C: Thickness of flange
  • R: Diameter of raised face
  • X: Hub Diameter at base
  • Y: Length through hub
  • T: Minimum thread length
  • Q: Minimum diameter of bolt circle

The thread processed in the flange's inner hole is used to screw the threaded flange to the threaded pipe. As a result, welding is not required. Consequently, compared to other flange types such slip-on flanges, socket weld flanges, and so forth, it is more simpler to install and maintain.

Raised Face Threaded Flange

Raised Face Threaded Flange

The raised face flange is easily identified when the gasket surface area is above the flange's bolted line. It works with a wide range of gaskets, from flat to semi-metallic and metallic, ring or full.

RTJ Threaded Flange

RTJ Threaded Flange

When metal to metal seals are required, the ring joint flange has a circular groove to accommodate the ring joint gasket. Especially in high-pressure and high-temperature conditions.

  • Refineries
  • Power Plants
  • Oil And Gas Industry
  • Ship Building
  • Paper & Pulp
  • Fossil Fuel Power Plants
  • Marine Applications
  • Nuclear Power
  • Threaded flanges can be fitted to pipes of various sizes without the need for welding, which is one of the main reasons why these flanges are so popular.
  • They can be used in extremely high pressure applications, especially at or near atmospheric temperatures, where post-weld heat treatment is not possible.
  • They are ideal for piping with small diameters.
  • They are cost-effective and time-saving devices.
  • Threaded flanges are typically used in non-cyclic applications.