IBC Coupling 3" To 2" IBC Coupling Adapter 3''TO2'' for ibc tank, 3 inch x 2 inch IBC Tote Valve Adapter Connector Cixi Chengtuo Hardware Parts Factory , https://www.ibccoupling.com The oil diffusion pump is a high-vacuum pump. The full name is a diffusion type vapor flow pump. The mechanical pump is used as a foreline pump to continuously remove the air in the sealed container and other gases that do not contribute to the metal pump body and the pump oil. , in order to obtain a high vacuum equipment, its ultimate pressure can reach L × 10 ~ 2 ~ 1 × 10 ~ 7Pa, pumping speed
Repair method for main fault of oil diffusion pump