18 300# 304 SS AND GRAFOIL RW S/W GSK

Part number 7GSW4B1800 is a yellow 304 Stainless Steel Class 300 Spiral Wound Gasket built to an 18 inch nominal pipe size and a Class 300 pressure rating. A spiral wound gasket delivers high-integrity sealing on critical flanges where pressure and temperature fluctuate.

304 Stainless Steel is specified here for high mechanical strength and pressure capability, dimensional stability under thermal cycling. The compound resists salt water and washdown, corrosion and oxidation, and high pressure. It is not the right choice where chloride stress cracking in some grades or galvanic pairing with dissimilar metals are present.

Common environments for this compound include chemical transfer, pharmaceutical, and petrochemical.

Order part number 7GSW4B1800, sold individually. Unit weight is approximately 4.63 lb. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.