For operation/services on the SDBB valves from EV Metalværk, we recommend that you use our original “Anti tamper key”.
This key is designed and manufactured for the exact fit to the “Ventilation valve” on any of our SDBB valves. It ensures correct handling, when you need to either close or open the “Ventilation valve” of the SDBB during service of your equipment.
Standard material is AISI 316L / EN 1.4404
** Other sizes and materials upon request.