Dimensions of Spiral Wound Gaskets ASME B16.20 used with Raised Face flanges ASME B16.5

Metal Industries is one of the oldest manufacturers,dealer,distributor,stockist & suppliers of Steel Flanges, which are manufactured using superior grade of steel like Stainless Steel 304,304L,310,310S,316,316L,317L. These Flanges are most durable and manufactures to fit in different size of Pipes. Engineers & World's Best Project Consultants use these stainless steel Flanges in Machined Components, Metal Industries manufacturing Steel Flanges & supplying to Government sector companies since 2 decades,we are approved vendor of Steel Flanges in top notch government sector companies like ONGC, Indian Oil,NTPC,BHEL,ONGC,HPCL BPCL etc.we are also Saudi Aramco approved supplier of Steel Flanges, we have supplied Stainless Steel Flanges to companies involved in Equipment Manufacturing, Mining, Oil Refineries, Chemical manufacturing, Steel and Aluminum Manufacturing, Utilities and Transportation, and Industrial Construction We Also Supply & Maintain huge stock of Other Grades of Steel Flanges like ALLOY STEEL FLANGES, A182 F1 / F5 / F9 / F11 / F22 / F91 FLANGES, Nickel Alloy 200 Flanges,Nickel Alloy 201 Flanges,Duplex Steel UNS S31803 Flanges,Duplex Steel UNS S32205 Flanges,Carbon Steel Flanges, COPPER NICKEL FLANGES, INCONEL FLANGES, HASTELLOY FLANGES, MONEL FLANGES, ALLOY 20 FLANGES.

we at Metal Industries well known for guaranteed fast delivery of the Stainless Steel Flanges in the India & Gulf countries. The main reason being we have an excellent warehousing and storage facilities for both finished and semi finished goods in the heart of Financial capital of India (Mumbai)

Metal Industries also emphasis on the packaging . The Steel Flanges are packed in wooden corrugated boxes foiled in bubble wraps.

Gaskets Price : US $0.1-100 per Piece
Dimensions & Tolerances :
Gaskets general Flange Gaskets general Spiral Wound Gaskets dimensions - B16.5 Class 150 - NPS 1/2-24 Class 300 - NPS 1/2-24 Class 400 - NPS 1/2-24 Class 600 - NPS 1/2-24 Class 900 - NPS 1/2-24 Class 1500 - NPS 1/2-24 Class 2500 - NPS 1/2-12 Spiral Wound Gaskets dimensions Flanges DIN EN 1092-1 RTJ type R gasket dimensions and tolerances Class 150-2500 - NPS 1/2-36 Non-Metallic Gaskets dimensions - B16.47 Series A Class 150-600 - NPS 26-60 Non-Metallic Gaskets dimensions - B16.47 Series B Class 150-600 - NPS 26-60	Non-Metallic Gasket dimensions Class 150-900 - NPS 1/2-24 Grooved Gasket (Camprofile) dimensions Class 150-2500 - NPS 1/2-24 Metal-Jacketed Gasket dimensions Class 150-2500 - NPS 1/2-24 Spiral Wound Gaskets dimensions - B16.47 Series A Class 150 - NPS 26-60 Class 300 - NPS 26-60 Class 400 - NPS 26-60 Class 600 - NPS 26-60 Class 900 - NPS 26-60 Spiral Wound Gaskets dimensions - B16.47 Series B Class 150 - NPS 26-60 Class 300 - NPS 26-60 Class 400 - NPS 26-60 Class 600 - NPS 26-60 Class 900 - NPS 26-48

 

 

Dimensions of Spiral Wound Gaskets ASME B16.20 used with Raised Face flanges ASME B16.5

Class  1500  NPS 1/2-24
NPS	Inner Ring	Sealing Element		Outer Ring
	Inside (d1) Diameter	Inside (d2) Diameter	Outside (d3) Diameter	Outside (d4) Diameter
1/2	14.2	19.1	31.8	63.5
3/4	20.6	25.4	39.6	69.9
1	26.9	31.8	47.8	79.5
1.1/4	33.3	39.6	60.5	88.9
1.1/2	41.4	47.8	69.9	98.6
2	52.3	58.7	85.9	143
2.1/2	63.5	69.9	98.6	165.1
3	78.7	92.2	120.7	174.8
4	97.8	117.6	149.4	209.6
5	124.5	143	177.8	254
6	147.3	171.5	209.6	282.7
8	196.9	215.9	257.3	352.6
10	246.1	266.7	311.2	435.1
12	292.1	323.9	368.3	520.7
14	320.8	362	400.1	577.9
16	374.7	406.4	457.2	641.4
18	425.5	463.6	520.7	704.9
20	476.3	514.4	571.5	755.7
24	577.9	616	679.5	901.7
NPS	Inside (d1) Diameter	Inside (d2) Diameter	Outside (d3) Diameter	Outside (d4) Diameter
	Inner Ring	Sealing Element		Outer Ring

General notes:

• Dimensions are in millimeters unless otherwise indicated.
• Image shows a Spiral Wound gasket with Inner - and Outer ring.
• d1 = Inside diameter when Inner ring is used.
• d2 = Inside diameter sealing element when no Inner ring is used.
• d3 = Outside diameter of sealing element.
• d4 = Outside diameter of Outer ring.
• Thickness of inner and outer ring: 2.97 mm - 3.33 mm.
• Thickness sealing element: 4.45 mm.
• Tolerance Outside diameter for NPS 1/2 through NPS 8 is ± 0.8 mm; for NPS 10 trough NPS 24 tolerance is + 1.5 mm - 0.8 mm.
• ASME B16.20 does not covers class 400 flanges up to NPS 3 and class 900 flanges up to NPS 2.1/2.
• There are no class 400 flanges NPS 1/2 thru NPS 3 (use Class 600), class 900 flanges NPS 1/2 thru NPS 2.1/2 (use Class 1500), or class 2500 flanges NPS 14 or larger.
• The inner ring inside diameters shown for NPS 1.1/4 thru 2.1/2 in class 1500 and 2500 will produce inner ring widths of 0.12 inches, a practical minimum for production purposes.
• ASME B16.20 which covers spiral wound gaskets requires the use of solid metal inner rings in: Pressure Class 900, nominal pipe sizes 24 and larger, Pressure Class 1500 from nominal pipe sizes 12 and larger, Pressure Class 2500 from nominal pipe sizes 4 and larger and all PTFE filled gaskets.

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