Spiral Wound Gaskets - Series A VS Series B
2022-05-22
Large diameter spiral wound gaskets (above NPS 24″) are available in either Series A or Series B, which are competing specifications. Series A spiral wound gaskets are more commonly used and can withstand more external pressure, while Series B spiral wound gaskets are typically found in non-critical applications. For both Series A and Series B spiral wound gaskets, the dimensions are different and must match the flanges they are being used to seal.