For use in transfer lines designed to ASME B31.4, ASME B31.8 or other equivalent standards. Line valves are designed to API 6D and ISO 14313 standards for use in transfer lines designed to ASME B31.4, ASME B31.8 or other equivalent standards. Produce a variety of pipeline valves that can reduce pipeline pressure loss to a minimum, such as fixed ball valves, flat gate valves, fully open check valves, etc.