The RFID transponder can be found in almost all areas of daily life. We make use of this standard of technology and now implement RFID transponders in the butterfly valves. Read all relevant data directly on the valve. A special in-metal transponder stores all relevant data on the valve. The information can be updated or overwritten up to 10,000 times. It saves inspection intervals, item numbers, type of sealing, order numbers and further data in the memory. The transponder can be retrofitted, is waterproof and immediately ready for use. Each transponder is unique as it has an ID number that cannot be overwritten. They can also store the item number from their P&ID on the chip. This means that the chip and valve can be assigned again and again.