PUMP SERIES Special design for easy repair and quick change of spare parts without any special tools. PTFE guide sleeve and PVDF impeller with abrasion resistant and to make shaft running more stable. Shaft busching is made of Rulon for best chemical resistance. PPHT - PVDF - SUS316 tube available with drive shaft made of SUS316 or Hastelloy. It's the best choice for transferring chemical fluid.