Case Study: 2003 Xi’an Jinzhu HFC-134a Plant – YNTO Ball Valves in Action
In 2003, Xi’an Jinzhu Modern Chemical Industry Co., Ltd. launched a new production line for HFC-134a refrigerant in Shaanxi Province, China. This facility – with an initial capacity of 5,000 tons per year – was part of China’s push to produce ozone-friendly refrigerants after the phase-out of CFCs. HFC-134a (1,1,1,2-tetrafluoroethane) is a widely used refrigerant gas, but manufacturing it is a chemically aggressive process. The production involves highly corrosive chemicals, including anhydrous hydrogen fluoride (HF) and other halogenated intermediates. From the outset, the Xi’an Jinzhu plant faced a critical engineering challenge: how to handle extremely corrosive process fluids reliably and safely. Valve failure in this process could lead to HF leaks – a grave safety hazard – or to costly downtime in a continuous chemical process.
2025-11-14 12:00:00