Natural gas, and liquefied natural gas (LNG), continues to grow as a part of the sustainable energy mix. While oil and gas companies look to lower emissions, one key refinery component that contributes up to 60% of emissions are valves, mainly due to poor design, sealing, and testing. Cryogenic Valves for Liquefied Natural Gas Plants delivers a much-needed reference that focuses on the design, testing, maintenance, material selection, and standards needed to stay environmentally compliant at natural gas refineries. Covering technical definitions, case studies, and Q&A, the reference includes all ranges of natural gas compounds including LPG, CNG, NGL, and PNG. Key design considerations are included that are specific for cryogenic services, including a case study on cryogenic butterfly valves. The material selection process can be more complex for cryogenic services, so the author goes into more detail about materials that adhere to cryogenic temperature resistance. Most importantly, testing of valves is included in depth, including shell test, closure or seat test, and thermal shock tests, preventing dangerous cryogenic leaks which are very harmful to the environment. Cryogenic Valves for Liquefied Natural Gas Plants is a vital resource for today's natural gas engineers.