Stockist & supplier ASME B16.20 · ASME B16.21 · API 6A
Gaskets & Seals — Spiral Wound, Ring Joint and Soft Cut
Teshi Group is a stockist and supplier of spiral wound, ring type joint and soft cut gaskets matched to your flange class and service. We supply gaskets together with Teshi-manufactured flanges and stud bolts as complete joint kits, so the joint is specified once and checked together.
Gaskets & Seals — specifications & size ranges
| Type | Standard | Size range | Pressure class | Materials |
|---|---|---|---|---|
| Spiral Wound | ASME B16.20 | ½"–60" | 150#–2500# | Windings 304/L, 316/L, 321, 347, 904L, duplex, super duplex, Monel 400, Inconel 600/625, Incoloy 800/825, Hastelloy C276/C22, titanium; graphite / PTFE / mica filler |
| Ring Type Joint (R / RX / BX) | ASME B16.20 / API 6A | ½"–36" | 150#–2500#, API 2000–15000 | Soft iron, low-carbon steel, F5, 410, 304/L, 316/L, 321, 347, duplex, super duplex, Inconel 625/825, Monel 400, Hastelloy C276, titanium |
| Non-asbestos Sheet | ASME B16.21 | ½"–60" | 150#–300# | CNAF, graphite |
| PTFE Envelope | ASME B16.21 | ½"–24" | 150#–300# | PTFE with insert |
| Kammprofile | ASME B16.20 | ½"–48" | 150#–2500# | Core 304/L, 316/L, 321, 347, duplex, Inconel 625/825, Monel, Hastelloy, titanium; graphite / PTFE / mica facing |
Gaskets & Seals types
6 productsSpiral Wound Gasket
ASME B16.20 · ASME B16.5
View productStockist & supplierRing Joint Gasket
ASME B16.20 · API 6A
View productStockist & supplierKammprofile Gasket
ASME B16.20 · EN 1514-6
View productStockist & supplierCompressed Non-Asbestos (CNAF) Gasket
ASME B16.21 · EN 1514-1
View productStockist & supplierRubber Gasket
ASME B16.21 · EN 1514-1
View productStockist & supplierPTFE Gasket
ASME B16.21 · EN 1514-1
View productTechnical data sheets
Material grades
All gradesComplete material range
- Spiral-wound windings
- 304, 304L, 316, 316L, 321, 347, 310, 904L, 254 SMO, duplex 2205, super duplex 2507, Monel 400, Inconel 600, Inconel 625, Incoloy 800, Incoloy 825, Hastelloy C276, Hastelloy C22, Hastelloy B2, Alloy 20, Nickel 200, titanium Gr 2
- Kammprofile cores
- 304, 304L, 316, 316L, 321, 347, 310, 904L, 254 SMO, duplex 2205, super duplex 2507, Monel 400, Inconel 600, Inconel 625, Incoloy 800, Incoloy 825, Hastelloy C276, Hastelloy C22, Hastelloy B2, Alloy 20, Nickel 200, titanium Gr 2; carbon steel
- Ring-joint rings
- Soft iron, low carbon steel, F5, 410, 304 / 304L, 316 / 316L, 321, 347, 904L, duplex F51, super duplex F53 / F55, Inconel 600 / 625, Incoloy 800 / 825, Monel 400, Hastelloy C276, titanium Gr 2
- Soft gaskets
- CNAF (aramid / NBR), flexible graphite, virgin / filled / expanded PTFE, EPDM, neoprene, nitrile, Viton, silicone
FAQ
Gaskets & Seals: common questions
Does Teshi Group manufacture gaskets?
No. Gaskets are stocked and supplied from approved manufacturers, usually as part of a complete flange, gasket and stud bolt kit.
How do I read the colour code on a spiral wound gasket?
Under ASME B16.20 the outer-ring edge colour identifies the winding metal (yellow for 304, green for 316L) and a stripe identifies the filler (grey for flexible graphite, white for PTFE).
Which gasket is used with ring-joint flanges?
Ring type joint flanges use metallic ring gaskets, type R oval or octagonal for ASME B16.5 flanges. The ring number depends on flange size and class.
Need a size or grade not listed here?
Tell us the specification and quantity — we source from approved mills and supply with the original mill test certificate.
Send us your specificationQuick RFQ
