Lip-type seals in Hammer Unions feature a protruding edge that enhances initial contact, protecting metal surfaces from corrosion in low-pressure Fig. 206 models. Made from 80 durometer NBR, they minimize turbulence in gas flows up to 2,000 psi. The lip design allows 4° misalignment for 2-inch sizes, simplifying installation on rigs. In sour applications, FKM lips extend life by 50% a... https://globalsealstech.com/product/hammer-union-seal-2/