... vacuum pump 0.098MPa Designed smoke acid gas SHB-IIIS water circulating vacuum pumpI. Uses ... and more stable; reduce the friction between gas and fluid, reduce the noise.D.Double-tap ... flume, ejector, tee junction, check valve and gas-extraction nozzle adopt the PP material; pump body and ... ANSI standard. B. SHB-IIIA: ejector and gas-extraction nozzle adopt stainless steel material (ANSI standard), ...