Hammer union seals are available in various sizes, generally ranging from 1 inch to 4 inches in internal diameter. These sizes fit an array of union designs required in industries such as oil and natural gas exploration. Selecting the proper seal size is vital to ensure reliable sealing and compatibility with different types of hammer union fittings, ranging from small-bore lines to l... https://globalsealstech.com/product/hammer-union-seal-2/