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ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type
ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type
ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type
ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type
Specifications
Type :
CGI (Centering Ring + Graphite Filler + Inner Ring)
Winding Strip :
316L Stainless Steel
Winding Thickness :
3.2mm / 4.5mm
Supply Ability :
200 Tons per Month
Size Range :
1/2"-60" (DN15-DN1500)
Temperature Range :
-200°C to +450°C (650°C in steam)
Model Number :
FLRS-G316L
Carbon Content :
C ≤ 0.03%
Certification :
ISO9001
MOQ :
10 Pieces
Outer Ring Material :
316L Stainless Steel
Delivery Time :
8-20 Days
Packaging Details :
Plywood case or pallet
Filler :
Flexible Graphite
Brand Name :
FLRS
Place of Origin :
China
Inner Ring Material :
316L Stainless Steel
Standard :
ASME B16.20
Payment Terms :
T/T,L/C,Western Union,PayPal
Pressure Rating :
Class 150/300/600/1500/2500
Description

Overview

Spiral wound gasket manufactured to ASME B16.20 with a 316L centering ring, a 316L inner ring and flexible graphite filler. Built for steam, chloride-bearing and thermally cycled service where mixed-material gaskets typically fail at the outer ring first.

Construction

Three components: a 316L centering ring that locates the gasket on the flange face and limits compression; a spiral-wound sealing element of pre-formed 316L strip and flexible graphite filler; and a 316L inner ring that prevents inward buckling of the winding and shields the sealing element from process-fluid erosion.

Why 316L for Both Rings

316L is the low-carbon grade of 316 (C ≤ 0.03%). It resists sensitization and the intergranular corrosion that standard 316 can develop after welding or heat exposure, and its molybdenum content gives pitting and crevice corrosion resistance in chloride and marine environments. With both rings in 316L, no carbon-steel component remains to corrode.

Filler Performance

Flexible graphite is chemically inert and non-aging. Service range −200 °C to +450 °C in oxidizing media, up to 650 °C in steam. High recovery under pressure and temperature cycling, low creep relaxation, and it conforms to minor flange surface irregularities.

Sizes and Ratings

StandardASME B16.20
Size1/2"–60" (DN15–DN1500)
Winding Thickness3.2 mm / 4.5 mm
Pressure ClassClass 150 / 300 / 600 / 1500 / 2500
Flange StandardsASME B16.5, ASME B16.47
Temperature−200 °C to +450 °C (650 °C in steam)

Typical Service

Heat exchanger channels and floating heads, pipe flanges, valve bonnets and pump casings in refineries, petrochemical plants, chemical processing, power generation, LNG and offshore installations.

Ordering

Specify flange size, pressure class and flange facing, or send a drawing for non-standard dimensions. Material certificates (EN 10204 3.1) and dimensional inspection reports are supplied with each batch.

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ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type

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Product Detail
Type :
CGI (Centering Ring + Graphite Filler + Inner Ring)
Winding Strip :
316L Stainless Steel
Winding Thickness :
3.2mm / 4.5mm
Supply Ability :
200 Tons per Month
Size Range :
1/2"-60" (DN15-DN1500)
Temperature Range :
-200°C to +450°C (650°C in steam)
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ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type
ASME B16.20 Spiral Wound Gasket 316L Outer Ring 316L Inner Ring Flexible Graphite Filler CGI Type

Shaanxi Flourish Industrial Co., Ltd.

Verified Supplier
7 Years
Since 2019
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Mechanical Fasteners, Hex Head Bolt, Double Ended Bolt
Total Annual :
2000000-5000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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