Portable, battery driven grinding and lapping machine for
Grinding and Lapping Equipment for Valves The Polir Series Portable, battery driven grinding and lapping machine for Globe and Safety valves. The Polir F6 machine is designed for onsite or inshop valve reconditioning. The light weight machine is equipped for a full, universal range up to 6 / DN150 mm. The Polir F6 is standard