Pressure drop or head loss, occurs in all piping systems because of elevation changes, turbulence caused by abrupt changes in direction, and friction within the pipe and fittings. T-joint is commonly used in pipeline or piping system to transport the liquid or gas from one place to another places depending on the demand and application. A liquefied natural gas (LNG) plant in Malaysia is taken a step forward in putting an effort to replace some of Straight-T fitting component with new Y-Tee joint component in their plant. The main purpose to implementing of Y-Tee is to reduce vibration on the piping system. Y-Tee joint is an engineered fitting component with some special characteristic to overcome some engineering problem like pressure loss, vibration, flow efficiency etc. The design and development of unlisted component, Y-Tee joint had been carried out for oil and gas industry plant. This special item is considered as engineered pipe fitting component with some special characteristic to overcome some engineering problem such as pressure loss, flow efficiency etc. Implementing of Y-Tee joint to the piping system will enhance the plant efficiency and optimum the plant in operation. SIRIM BHD together with the Group Technical Solutions (GTS) has been designing and developing the Y-Tee stainless steel jointly adhering to the ASME standard code. By using the facilities in SIRIM, three (3) numbers of Y-Tee were produced, tested and installed at LNG plant successfully. © 2018 Author(s).