2FBV series liquid ring vacuum pump is suitable for suction gas and vapour, and the suction pressure can reach 33mbar (abs)(i.e. 97% vacuum degree). When the liquid ring vacuum pump work under the condition that the suction pressure is near the limited vacuum (saturated pressure of the operating liquid) for a long time, it should couple with the cavitation protection pipe in order to protect the pump. When it's used as a compressor, the maximum pressure is 0.26mpa(abs). As a new generation of energy-saving product, 2FBV series liquid ring vacuum pump will replace the SK and 2SK series liquid ring vacuum pumps. 2FBV6 series liquid ring vacuum pumps and compressor are mainly used for pumping the explosive gas or working in the flammable and explosive environment. The technical parameter of each type is the same as the corresponding type of the 2FBV or 2FBV5 series products.