Spiral wound gasket manufacturer in India

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ASME B16.20 Class 150 to 2500 Carbon Steel Graphite Gasket and Stainless Steel Mica Gasket supplier in Mumbai

What is a Spiral Wound Gasket?
The Spiral Wound Gasket comes with a V-shaped metal strip that can wound in spirally. It combines with a soft filler material to perform its task. The metal strip ensures recovery, while the flexible filler material guarantees proper sealing. The combination of the two makes the Spiral Wound Gasket suitable for applications in extreme conditions including fluctuating temperature and pressure. Depending on the application for which the Spiral Wound Gasket would be needed, it might have an inner and/or outer ring.
As mentioned earlier, the Spiral Wound Gasket has a winding of alternative strips consisting of metal and a filler material. Depending on the types of the metal and material, the end product can be used for a wide range of applications. Typically, the Spiral Wound Gasket is used in services that involve chemicals, oils, steam, and hydrocarbons.
The outer ring basically rests on the bolts of the flange and the gasket is centrally located on the raised face of the flange. It helps in proper sealing and prevents any kind of leakage. The ring helps in preventing any kind of sealing over-compression.
The key features of Spiral Wound Gasket would include:

  • It can be used in environments up to the temperature of 1000 degrees C and pressure of 250 bar.
  • They perform equally well in a wide range of media.
  • It comes with easy installation primarily because of its design. It also helps in reducing damage of the gasket, but for the large diameter variants that come without any inner or outer rings, proper measures should be taken to transport and install them safely.
  • The gasket can be removed easily and it is non-adhesive in nature.

How do you identify a Spiral Wound Gasket?
A Spiral Wound Gasket can be identified easily from its structure; it consists of three elements:

  1. The outer ring, centering ring, or guide ring is primarily made of up carbon steel. It helps in centering the gasket while it is inserted into bolted flange joints.
  2. Inner ring helps to prevent windings from getting buckled inside the pipeline. It helps to avoid the common “bird nest” issues inside the pipe.
  3. The sealing material helps to seal the connection and prevents any kind of leakage. It consists of both windings and filler materials. Ploytetrafluroethylene is a common sealing material.

Can you use Spiral Wound Gasket with flat face flange?
A Spiral Wound Gasket can be used with both raised face flange and flat face flange, for various high temperature and pressure services, corrosive environments, or where there is a presence of any toxic media.

How much do Spiral Wound Gasket Compress?
The thickness of the Spiral Wound Gasket is 3.3 mm. There can be ± 0.13 mm based on 30,000 psi uniform bolt stress.

What Material Combinations Used in a Spiral Wound Gasket
The Material Combinations Used in a Spiral Wound Gasket would include:

  • 304 Stainless Steel
  • 316/L Stainless Steel
  • 316 Ti Stainless Steel
  • 321 Stainless Steel
  • 347 Stainless Steel
  • Duplex
  • Nickel 200
  • Monel 400
  • Titanium
  • Hastelloy B-2
  • Hastelloy C-276
  • Inconel 600
  • Inconel 625
  • Inconel X-750
Spiral wound gasket manufacturer in India

Spiral wound gasket manufacturer in India

Looking for Spiral Wound Gasket suppliers? Manufacturer of ASME B16.20 RTJ Gasket, Mica and Graphite Gasket for high pressure and extreme temperature conditions

Table of Content


Size 1/2 inch to 24 inch
Thickness 2.5 mm. 3.5 mm , 4.5 mm, 6.5 mm
Material Provided By Manufacturer SS 304, SS 306, Nickel
Manufacturer of Filler materials Graphite, PTFE, Non-Asbestos fiber, CAF
Type Spiral Wound Gasket
Shape Round
Temperature (Degree Celsius) -200 to 450 Degree C

Well known ASME B16.20 RTJ Gasket distributor, importer, exporters, stockists, supplier, wholesalers, dealers, stockholders and Manufacturer in Mumbai.

Spiral Wound Gasket

Winding / Inner / Outer Ring Material Combinations Maximum Temperature  ASME B16.20 Colour Coding
Carbon Steel  500⁰C  Silver
304 Stainless Steel  550⁰C  Yellow
316/L Stainless Steel  550⁰C  Green
316 Ti Stainless Steel  650⁰C  Light Blue
321 Stainless Steel  650⁰C  Turquoise
347 Stainless Steel  650⁰C  Blue
Duplex  800⁰C  N/A
Nickel 200  600⁰C  Red
Monel 400  600⁰C  Orange
Titanium  350⁰C  Purple
Hastelloy B-2  450⁰C  Brown
Hastelloy C-276  450⁰C  Beige
Inconel 600  950⁰C  Gold
Inconel 625  450⁰C  Gold
Inconel X-750  1000⁰C  Light Grey
Incoloy 825  450⁰C  White
Spiral wound gasket Price Per Piece in India Graphite Gasket Flanges Price in INR Cgi Gasket Price in UAE Dirham ASME B16.20 Spiral Wound Gasket Price in USD
BOTTOM SPIRAL WOUND GASKET Per Unit 3,457 UAE Dirham 170.83 $46.51
DISC SPIRAL WOUND GASKET MOC: AISI 316+GRAPHITE Per Unit 11,914 UAE Dirham 588.74 $160.29
DISC SPIRAL WOUND GASKET AISI316 + GRAFITE Per PCS 4,668 UAE Dirham 230.67 $62.80
SPIRAL WOUND GASKET (WINDING : SS316/MICA INNER & OUTER RING : SS316) SIZE: 1/2 300LB THK 4.5MM Per PCS 155 UAE Dirham 7.66 $2.09

Petromet Flange is Spiral wound gasket manufacturer in India, Contact us to get latest price list of Gasket Spiral Wound SS316, We are leading Supplier and Exporter of Carbon Steel Spiral Wound Gasket.

ASA 150/ 600 Carbon Steel Spiral Wound Gasket and Cgi Gasket manufacturer in Mumbai, 316L/ 304/ 309/310/ 316Ti/ 321 and 347 Stainless Steel Spiral Wound Gasket available in Style SG, RIR, HTX, CRIR, & SG/IR

Spiral Wound Gasket

NPS Inner Ring Sealing Element Outer Ring
d1 d2 d3 d4
1/2 14.2 19.1 31.8 47.8
3/4 20.6 25.4 39.6 57.2
1 26.9 31.8 47.8 66.8
1.1/4 38.1 47.8 60.5 76.2
1.1/2 44.5 54.1 69.9 85.9
2 55.6 69.9 85.9 104.9
2.1/2 66.5 82.6 98.6 124
3 81 101.6 120.7 136.7
4 106.4 127 149.4 174.8
5 131.8 155.7 177.8 196.9
6 157.2 182.6 209.6 222.3
8 215.9 233.4 263.7 279.4
10 268.2 287.3 317.5 339.9
12 317.5 339.9 374.7 409.7
14 349.3 371.6 406.4 450.9
16 400.1 422.4 463.6 514.4
18 449.3 474.7 527.1 549.4
20 500.1 525.5 577.9 606.6
24 603.3 628.7 685.8 717.6
Nom.
Pipe
Size		 Suggested Torque Value
Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
½ 47 47 47 65 65 65
¾ 60 70 70 93 93 93
1 60 90 90 148 148 148
1 ¼ 60 105 105 242 242 282
1 ½ 60 170 170 351 351 385
2 120 113 113 228 228 266
2 ½ 120 146 146 327 327 358
3 120 200 200 318 449 496
3 1/2 120 200 300 318 318
4 120 200 320 320 575 694 734
5 160 200 320 490 805 967 1282
6 200 200 320 490 661 867 1832
8 200 320 490 650 1003 1301 1648
10 320 490 710 875 915 2261 2486
12 320 710 1000 1000 1102 1941 3976
14 490 710 1000 1223 1164 2051
16 490 835 1200 1335 1540 3420
18 710 835 1360 1900 2971 4815
20 710 1000 1605 1900 2800 5761
24 1000 1200 2885 3000 4144 9294
  • The nominal thickness of spiral wound gaskets is typically between 3.2 mm and 4.5 mm.
  • A thickness of 4,5 mm is recommended for gaskets with diameters no greater than 1200 mm.
  • For the diameter up to 1800 mm – 5,5 mm.
  • Thicknesses of roughly 6.5 mm or 7 mm are more suitable for very large diameters (up to 4000 mm).

SS 304 Spiral Wound Gasket With or Without Inner Ring available in 2.5mm, 3.2 mm, 4.5 mm, 6.4 mm, 7.2 mm thicknesses For Flat Face Flange, check ASME B16.20 Gasket Spiral Wound SS316 dimensions and weight chart
Pressure Rating 1,000-3,000 psi

The inner ring improves the gasket's axial rigidity and robustness. Its goal is to reduce turbulence in the flange area and to help avoid excessive compression owing to high seating stress in high-pressure service.

The advantages to using an inner ring include the following:

  • Increases compression stop and blowout resistance.
  • Prevents the accumulation of process fluid.
  • Reduces erosion and turbulence
  • Protects the gasket
  • It prevents buckling and increases tightness.
  • Allows for a wide range of temperature variations.
  • Allows for a wide variety of pressures
  • Pipelines, Valves, Pumps, and Thermal Exchanges all use it.

Exporter & supplier of PN16/ PN25/ PN40 SS Spiral Wound Gasket and Type HTX Spiral Wound Gaskets for heat exchanger applications
SWR Spiral Wound Gasket without centering ring
SOR Spiral Wound Gasket with centering ring. (Centering ring made of carbon steel stainless steel and other metals)
SIO Spiral Wound Gasket with inner & outer rings.  (Rings are made of carbon steel stainless steel and other metals)
SCD Spiral Wound Gasket with centering device
SIOH Spiral Wound Gasket with outer ring and inner rings supplied with bolt holes
SIR Inner rings on a spiral wound gasket. (Stainless steel rings are most commonly used.)
ASME B16.20 Spiral Wound Gasket

ASME B16.20 Spiral Wound Gasket

Type CR Spiral Wound Gaskets

Type CR Spiral Wound Gaskets

Type R Graflex Faced Spiral Wound Gaskets

Type R Graflex Faced Spiral Wound Gaskets

Spiral Wound Gasket Graphite Filler

Spiral Wound Gasket Graphite Filler

PN40 SS Spiral Wound Gasket

PN40 SS Spiral Wound Gasket

Cgi Gasket

Cgi Gasket

Spiral Wound Gasket With Inner Ring

Spiral Wound Gasket With Inner Ring

Mica Spiral Wound Gaskets

Mica Spiral Wound Gaskets

PTFE Spiral Wound Gaskets

PTFE Spiral Wound Gaskets

Spiral Wound Gasket Without Inner Ring

Spiral Wound Gasket Without Inner Ring

Gasket Spiral Wound SS 304

Gasket Spiral Wound SS 304

ASME B16.20 RTJ Gasket

ASME B16.20 RTJ Gasket

graphite Spiral Wound Gaskets

graphite Spiral Wound Gaskets

Gasket Spiral Wound SS316

Gasket Spiral Wound SS316

Spiral Wound Gasket For Flat Face Flange

Spiral Wound Gasket For Flat Face Flange

Stainless Steel Spiral Wound Gasket

Stainless Steel Spiral Wound Gasket

Carbon Steel Spiral Wound Gasket

Carbon Steel Spiral Wound Gasket

Spiral Wound Gasket SS316 Graphite

Spiral Wound Gasket SS316 Graphite

Type R Spiral Wound Gaskets

Type R Spiral Wound Gaskets

Mica and Graphite Gasket

Mica and Graphite Gasket

compressed fibre Spiral Wound Gaskets

compressed fibre Spiral Wound Gaskets

Type RIR Spiral Wound Gaskets

Type RIR Spiral Wound Gaskets

SS Spiral Wound Gasket

SS Spiral Wound Gasket

Type CRIR Spiral Wound Gaskets

Type CRIR Spiral Wound Gaskets

Nonas Spiral Wound Gaskets

Nonas Spiral Wound Gaskets

SS 304 Spiral Wound Gasket

SS 304 Spiral Wound Gasket

Type HTX Spiral Wound Gaskets

Type HTX Spiral Wound Gaskets

NPS Weight
1/2 1-1/2 oz
3/4 2-1/2 oz
1 2-1/2 oz
1 1/4 3 oz
1 1/2 4 oz
2 4-1/2 oz
2 1/2 6-1/2 oz
3 7 oz
4 9-1/2 oz
5 12 oz
6 1 lb
8 1-1/2 lb
10 1-3/4 lb
12 2-1/4 lb
14 3-1/2 lb
16 4-1/4 lb
18 5 lb
20 6 lb
22 6-3/4 lb
24 7-1/2 lb
30 10-1/2 lb
36 12-1/2 lb
42 14-1/2 lb
48 16-1/2 lb

Spiral Wound Gasket

A spiral wound gasket consists of three elements:

  • Outer ring: This outer ring, which is made of carbon steel, is also known as the centering ring or guide ring. When inserting a gasket into a bolted flange joint, it is used to centre the gasket.
  • Inner ring: The inner ring is critical for the gasket because it prevents the windings inside the pipe from buckling. Parts of a gasket are pulled into the pipe when it buckles. Pieces of the gasket will normally move through the pipeline until they become entangled in something. They frequently become entangled around rotating equipment, such as a pump. The resulting mess is referred to as a "bird's nest." Inner rings assist you in avoiding this issue.
  • Sealing element: The sealing element, as the name suggests, produces the seal that prevents leaks. Windings and filler material are both included in a sealing element. A flexible graphite filler material approved for high temperatures will be used in the majority of spiral wound gaskets used in oil and gas refineries.
Nom. ThicknessCompressed Thickness
2.5 mm(.098 in)1.9/2.1mm(.075/.085 in)
3.2 mm(.125 in)2.4/2.6mm(.095/.105 in)
4.5 mm(.175 in)3.2/3.45mm(.125/.135 in)
6.4 mm(.250 in)4.6/4.8mm(.180/.190 in)
7.3 mm(.285 in)4.7/4.9mm(.185/.195 in)
  • Oil and Gas
  • Offshore
  • Pump and Valve
  • Pharmaceutical
  • Petrochemical
  • Nuclear Energy
  • Marine

GRAPHITE

  • To be used with hydrocarbons, oil, a variety of chemicals, and steam service.
  • 450⁰C > 400 bar

PTFE

  • Service of Oxygen Cleaning
  • Almost all chemicals are resistant to it.
  • 260⁰C > 100 bar

MICA

  • Applications involving high temperatures and high pressures
  • 1000⁰C >100 bar
Metallic Winding Material for Spiral Wound Gasket Abbreviated Winding
Material Name		 Color Code
Carbon steel CRS Silver
304 SS 304 Yellow
304 L SS 304 L No color
309 SS 309 No color
316 L SS 316 L Green
347 SS 347 Blue
321 SS 321 Turquoise
Monel 400 MON Orange
Nickel 200 NI Red
Titanium TI Purple
Hastelloy B HAST B Brown
Hastelloy C HAST C Beige
Winding Materials Temperature Range Max PSI/BAR PN Range
304 Stainless Steel min-250 max 550 °C 650°C 10-320
316L Stainless Steel min - 100 max 550 °C 800°C 10-320
347 Stainless Steel min -250 max 550 °C 870°C 10-320
321 Stainless Steel min-250 max 550 °C 870°C 10-320
Monel 400 min -125 max 600 °C 800°C 10-320
Nickel 200 min - 250 max 600 °C 600°C 10-320
Titanium min - 250 max 350 °C 450°C 10-320
Hastelloy B-2 min - 200 max 450 °C 500°C 10-320
Hastelloy C-276 min -200 max 450 °C 450°C 10-320
Inconel 600 min - 100 max 950 °C 1000°C 10-320
Incoloy 825 min -100 max 450 °C 450°C 10-320

The Gasket Outer Ring fits within the Flange Bolts, putting the gasket in the centre of the raised face. The Outer Ring works as a compression stop, limiting over-compression of the sealing part and potentially causing 'blow-out.' The Inner Ring works as a shield against media attacks.

Spiral Wound Gasket

NPS Element Sealing Inner Ring Outer Ring
Outside Dia (d3) Inside Dia (d2) Inside Dia (d1) Outside Dia (d4)
½ 31.8 19.1 14.2 47.8
¾ 39.6 25.4 20.6 57.2
1 47.8 31.8 26.9 66.8
1¼ 60.5 47.8 38.1 76.2
1½ 69.9 54.1 44.5 85.9
2 85.9 69.9 55.6 104.9
2½ 98.6 82.6 66.5 124.0
3 120.7 101.6 81.0 136.7
4 149.4 127.0 106.4 174.8
5 177.8 155.7 131.8 196.9
6 209.6 182.6 157.2 222.3
8 263.7 233.4 215.9 279.4
10 317.5 287.3 268.2 339.9
12 374.7 339.9 317.5 409.7
14 406.4 371.6 349.3 450.9
16 463.6 422.4 400.1 514.4
18 527.1 474.7 449.3 549.4
20 577.9 525.5 500.1 606.6
24 685.8 628.7 603.3 717.6

Spiral Wound Gasket

NPS Outer Ring Sealing Inner Ring Element
Outside Dia (d4) Inside Dia (d2) Inside Dia (d1) Outside Dia (d3)
½ 54.1 19.1 14.2 31.8
¾ 66.8 25.4 20.6 39.6
1 73.2 31.8 26.9 47.8
1 ¼ 82.6 47.8 38.1 60.5
1 ½ 95.3 54.1 44.5 69.9
2 111.3 69.9 55.6 85.9
2 130.3 82.6 ½ 66.5 98.6
3 149.4 101.6 81.0 120.7
4 181.1 127.0 106.4 149.4
5 215.9 155.7 131.8 177.8
6 251.0 182.6 157.2 209.6
8 308.1 233.4 215.9 263.7
10 362.0 287.3 268.2 317.5
12 422.4 339.9 317.5 374.7
14 485.9 371.6 349.3 406.4
16 539.8 422.4 400.1 463.6
18 596.9 474.7 449.3 527.1
20 654.1 525.6 500.1 577.9
24 774.7 628.7 603.3 685.8

Spiral Wound Gasket

NPS Element Sealing Inner Ring Outer Ring
Outside Dia (d3) Inside Dia (d2) Inside Dia (d1) Outside Dia (d4)
½ 31.8 19.1 14.2 54.1
¾ 39.6 25.4 20.6 66.8
1 47.8 31.8 26.9 73.2
1 ¼ 60.5 47.8 38.1 82.6
1 ½ 69.9 54.1 44.5 95.3
2 85.9 69.9 55.6 111.3
2 ½ 98.6 82.6 66.5 130.3
3 120.7 101.6 78.7 149.4
4 149.4 120.7 102.6 193.8
5 177.8 147.6 128.3 241.3
6 209.6 174.8 154.9 266.7
8 263.7 225.6 205.7 320.8
10 317.5 274.6 255.3 400.1
12 374.7 327.2 307.3 457.2
14 406.4 362.0 342.9 492.3
16 463.6 412.8 389.9 565.2
18 527.1 469.9 438.2 612.9
20 577.9 520.7 489.0 682.8
24 7 685.8 628. 590.6 790.7

Spiral Wound Gasket

NPS Element Outer Ring Inner Ring Sealing
Outside Dia (d3) Outside Dia (d4) Inside Dia (d1) Inside Dia (d2)
½ 31.8 63.5 14.2 19.1
¾ 39.6 69.9 20.6 25.4
1 47.8 79.5 26.9 31.8
1¼ 60.5 88.9 33.3 39.6
1½ 69.9 98.6 41.4 47.8
2 85.9 143.0 52.3 58.7
2½ 98.6 165.1 63.5 69.9
3 120.7 168.4 78.7 95.3
4 149.4 206.5 102.6 120.7
5 177.8 247.7 128.3 147.6
6 209.6 289.1 154.9 174.8
8 257.3 358.9 196.9 222.3
10 311.2 435.1 246.1 276.4
12 368.3 498.6 292.1 323.9
14 400.1 520.7 320.8 355.6
16 457.2 574.8 374.7 412.8
18 520.7 638.3 425.5 463.6
20 571.5 698.5 482.6 520.7
24 679.5 838.2 590.6 628.7

Spiral Wound Gasket

NPS Element Inner Ring Outer Ring Sealing
Outside Dia (d3) Inside Dia (d1) Outside Dia (d4) Inside Dia (d2)
½ 31.8 14.2 63.5 19.1
¾ 39.6 20.6 69.9 25.4
1 47.8 26.9 79.5 31.8
1 ¼ 60.5 33.3 88.9 39.6
1 ½ 69.9 41.4 98.6 47.8
2 85.9 52.3 143.0 58.7
2 ½ 98.6 63.5 165.1 69.9
3 120.7 78.7 174.8 92.2
4 149.4 97.8 209.6 117.6
5 177.8 124.5 254.0 143.0
6 209.6 147.3 282.7 171.5
8 257.3 196.9 352.6 215.9
10 311.2 246.1 435.1 266.7
12 368.3 292.1 520.7 323.9
14 400.1 320.8 577.9 362.00
16 457.2 374.7 641.4 406.4
18 520.7 425.5 704.9 463.6
20 571.5 476.3 755.7 514.4
24 679.5 577.9 901.7 616.0

Spiral Wound Gasket

NPS Sealing Outer Ring Inner Ring Element
Inside Dia (d2) Outside Dia (d4) Inside Dia (d1) Outside Dia (d3)
½ 19.1 69.9 14.2 31.8
¾ 25.4 76.2 20.6 39.6
1 31.8 85.9 26.9 47.8
1 ¼ 39.6 104.9 33.3 60.5
1 ½ 47.8 117.6 41.4 69.9
2 58.7 146.0 52.3 85.9
2 ½ 69.9 168.4 63.5 98.6
3 92.2 196.9 78.7 120.7
4 117.6 235.0 97.8 149.4
5 143.0 279.4 124.5 177.8
6 171.5 317.5 147.3 209.6
8 215.9 387.4 196.9 257.3
10 270.0 476.3 246.1 311.2
12 317.5 549.4 292.1 368.3

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