Peerless Industrial Group
Peerless Industrial Group Tire Chains Single Bus & RV V-Bar PK2 QG2821
$67.99
0.00081572BTC
In stock
Zoro Select
Zoro Select BULK-FG-2003 Spiral Wound Gasket with Graphite Filler 4 in 1/8 in
Spiral-wound flange gasket with graphite filler for 4-inch ANSI Class 300 piping, rated from -300 °F to 1,200 °F
- Graphite filler withstands -300 °F to 1,200 °F
- Stainless steel 304 winding resists corrosion in industrial service
- Carbon steel outer ring adds mechanical strength to flange joint
- ASME B16.20 compliant for Class 300 flange applications
- Inner diameter 5 in, outer diameter 7 1/8 in fits 4 in pipe
Spiral Wound Gasket for ANSI Class 300 Flanges
This Zoro Select spiral wound gasket fits 4-inch pipe flanges rated to ANSI Class 300. It uses a stainless steel 304 winding with a graphite filler and a carbon steel outer ring. The construction follows ASME B16.20 for industrial piping systems.
Suited for high-temperature piping up to 1,200
Buyers needing a gasket rated beyond 1,200 Degrees F or below -300 Degrees F should look at other sealing options. Applications requiring a different flange class or pipe diameter will need a separate part number.
Graphite filler handles 1,200 Degrees F maximum
The graphite filler material sets the upper temperature limit at 1,200 Degrees F for continuous service. This single specification decides whether the gasket matches the thermal demands of the installation.
Highlights
- Graphite filler withstands -300 °F to 1,200 °F
- Stainless steel 304 winding resists corrosion in industrial service
- Carbon steel outer ring adds mechanical strength to flange joint
- ASME B16.20 compliant for Class 300 flange applications
- Inner diameter 5 in, outer diameter 7 1/8 in fits 4 in pipe
Specifications
| Brand | ZORO SELECT |
|---|
Questions about this item
How often should the graphite filler in this spiral wound gasket be inspected or replaced during normal service?
Graphite filler does not require scheduled replacement; inspect the gasket whenever the flange is opened and replace it if the winding or filler shows signs of extrusion, oxidation or mechanical damage.
What is the first limiting factor when this gasket operates continuously at its maximum temperature rating?
Continuous exposure near 1,200 °F will gradually oxidise the graphite filler, reducing sealing effectiveness before the 304 stainless winding or carbon steel outer ring reach their own limits.
How much heat does the gasket itself generate when installed in a 4-inch Class 300 flange running all day?
The gasket produces no heat of its own; it simply conducts process temperature, so external insulation or flange cooling determines the surrounding surface temperature.
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