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:
How do you identify a Spiral Wound Gasket?
A Spiral Wound Gasket can be identified easily from its structure; it consists of three elements:
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:
Spiral wound gasket manufacturer in India
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.
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.
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 |
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:
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
Type CR Spiral Wound Gaskets
Type R Graflex Faced Spiral Wound Gaskets
Spiral Wound Gasket Graphite Filler
PN40 SS Spiral Wound Gasket
Cgi Gasket
Spiral Wound Gasket With Inner Ring
Mica Spiral Wound Gaskets
PTFE Spiral Wound Gaskets
Spiral Wound Gasket Without Inner Ring
Gasket Spiral Wound SS 304
ASME B16.20 RTJ Gasket
graphite Spiral Wound Gaskets
Gasket Spiral Wound SS316
Spiral Wound Gasket For Flat Face Flange
Stainless Steel Spiral Wound Gasket
Carbon Steel Spiral Wound Gasket
Spiral Wound Gasket SS316 Graphite
Type R Spiral Wound Gaskets
Mica and Graphite Gasket
compressed fibre Spiral Wound Gaskets
Type RIR Spiral Wound Gaskets
SS Spiral Wound Gasket
Type CRIR Spiral Wound Gaskets
Nonas Spiral Wound Gaskets
SS 304 Spiral Wound Gasket
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 |
A spiral wound gasket consists of three elements:
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) |
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.
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 |
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 |
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 |
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 |
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 |
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 |