Spiral Wound Gasket Class 300 ✔️ Certified is a product in the gaskets & seals family for fluid conduction in 316 stainless steel. 21 sizes published with per-variant price and availability. Price from $ 6.250 COP before VAT.
| SKU | Size | Unit price (from) | Availability | Qty | |
|---|---|---|---|---|---|
| VT-118937-01 | 1/2" | $ 6.250 | In stock | ||
| VT-118937-02 | 3/4" | $ 6.250 | In stock | ||
| VT-118937-03 | 1" | $ 6.250 | In stock | ||
| VT-118937-04 | 1-1/4" | $ 6.250 | In stock | ||
| VT-118937-05 | 1-1/2" | $ 6.250 | In stock | ||
| VT-118937-06 | 2" | $ 6.250 | In stock | ||
| VT-118937-07 | 2-1/2" | $ 6.250 | In stock | ||
| VT-118937-08 | 3" | $ 6.250 | In stock | ||
| VT-118937-09 | 4" | $ 6.250 | In stock | ||
| VT-118937-10 | 5" | $ 6.250 | In stock | ||
| VT-118937-11 | 6" | $ 6.250 | In stock | ||
| VT-118937-12 | 8" | $ 6.250 | In stock | ||
| VT-118937-13 | 10" | $ 6.250 | In stock | ||
| VT-118937-14 | 12" | $ 6.250 | In stock | ||
| VT-118937-15 | 14" | $ 6.250 | In stock | ||
| VT-118937-16 | 16" | $ 6.250 | In stock | ||
| VT-118937-17 | 18" | $ 6.250 | In stock | ||
| VT-118937-18 | 20" | $ 6.250 | In stock | ||
| VT-118937-19 | 24" | $ 6.250 | In stock | ||
| VT-118937-20 | 30" | $ 6.250 | In stock | ||
| VT-118937-21 | 36" | $ 6.250 | In stock |
Prices per size, per unit, before VAT. Confirmed in the quote together with shipping.
| Family | Gaskets & seals |
| Material | Acero inoxidable 316 |
| Connection | Other |
| Availability | In stock |
The class 300 spiral wound gasket is a semi-metallic gasket made of a spirally wound metal strip with a sealing filler, manufactured per ASME B16.20-2023 for ASME B16.5 class 300 flanges. The usual construction is 316L stainless steel winding with flexible graphite or PTFE filler and a carbon steel outer centering ring.
| Characteristic | Specification |
|---|---|
| Manufacturing standard | ASME B16.20-2023 (Metallic Gaskets for Pipe Flanges) |
| Mating flanges | ASME B16.5-2020 class 300 in 1/2" to 24"; ASME B16.47 in larger diameters (30", 36" of the lot) |
| Winding strip | 316L stainless steel |
| Filler | Flexible graphite or PTFE, depending on service — confirmed when quoting |
| Outer ring | Carbon steel; centers the gasket between the studs |
| Inner ring | Mandatory with PTFE filler; otherwise per the diameter-class combinations required by ASME B16.20-2023 |
| Thickness | 4.45 mm (0.175 in) nominal; design compressed thickness 3.30 mm (0.130 in) per ASME B16.20-2023 |
| Filler temperature | Flexible graphite up to ≈450 °C (842 °F) in oxidizing service; PTFE up to ≈260 °C (500 °F) — typical manufacturer catalog values, confirm when quoting |
| Certificate | Certificate of conformity or lot traceability on request |
| Sale | Per unit |
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
| Element | Identification color |
|---|---|
| 316L winding | Green outer ring edge |
| Flexible graphite filler | Gray stripe on the edge |
| PTFE filler | White stripe on the edge |
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
| Nominal diameter | Reference flange |
|---|---|
| 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4", 5", 6", 8", 10", 12", 14", 16", 18", 20", 24" | ASME B16.5-2020 class 300 |
| 30", 36" | ASME B16.47 class 300 (series per project) |
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for this class 300 spiral wound gasket indicating diameter, filler, inner ring, and certificate requirements to confirm availability and price.
The price depends on diameter, filler (flexible graphite or PTFE), rings, and quantity. TECTUL quotes per unit with the flange and fluid data.
Gasket dimensions change with the flange class per the ASME B16.20-2023 tables: a class 300 gasket is not interchangeable with a class 150 one even if the nominal diameter matches.
Per ASME B16.20, the edge color identifies the winding (green = 316L) and the stripe identifies the filler (gray = flexible graphite, white = PTFE).
Always when the filler is PTFE, and in the diameter-class combinations required by the ASME B16.20-2023 table; the project may also require it by specification.
No. It is a single-use gasket: the winding deforms when compressed and does not recover its design thickness.
It depends on the filler: flexible graphite up to ≈450 °C in oxidizing service and PTFE up to ≈260 °C, per manufacturer catalogs. The actual limit of the assembly is confirmed with the pressure-temperature curve when quoting.
Before using these data in engineering decisions — design, installation or systems with mechanical risk of pressure, rupture, fatigue, impact or water hammer — you must read the Technical notice and limitation of liability at the end of this page.
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The dimensions, thicknesses, pressures, temperatures and other characteristics stated in this data sheet are theoretical nominal reference values, compiled from publicly available technical sources: international standards (ASME, ASTM, API, MSS, ISO and NTC, depending on the product) and published engineering literature. They are average approximations intended to guide selection, not a certificate of conformity for any given lot.
Actual values may vary due to conditions inherent to the manufacturing process — dimensional and wall-thickness tolerances (in pipe, typically ±12.5%), surface finish and residual stresses from forming or welding — and to factors inherent to the raw material — chemical composition variations within the ranges allowed by the standard, inclusions or heat-to-heat differences. They may also be affected by in-service events not foreseeable at design time: water hammer, vibration, thermal and mechanical fatigue, corrosion and operating overpressures, which can cause the element to fail before its estimated service life.
To know the certified behavior of a specific lot, TECTUL supplies upon request the manufacturer's mill test certificate (MTC) issued per the product standard; for critical applications, laboratory testing of the lot can also be arranged. In the absence of such certification, the data provided here must not be used as the sole criterion in critical or safety applications, or wherever the integrity of the line may compromise the lives of people or property; in such cases, consult our technical team first.
