Wate 20V190 series gas genset power up to 4000KW, in the full absorption of international advanced high-tech and successful experience based on the development of thin combustion system based on closed-loop control of the air-fuel ratio, intelligent cooling control system, integrated control system, to improve the reliability of the whole machine, functionality and adaptability of the main direction of the main power of the gas genset developed. It has the advantages of being suitable for low-pressure gas, high intelligence, low heat consumption, good reliability, low emission and long service life, etc. The main technical indexes have reached the international advanced level.