According to the requirements of the standard, the ball valves of the 37000 series are equipped with a protective cap made of metal, which if necessary can be secured with leaded wire in order to
prevent any unauthorized maneuvers.
ON.C.e the cap has been unscrewed with the aid of the appropriate tool, the valve can be operated. For the actuation
valve requires a second tool.
The metal protection cap, equipped with a sealing gasket, is designed to operate in the same conditions as the valve, therefore it can guarantee perfect sealing even in the event of accidental deterioration of the two gaskets that are on the operating rod. The shape of the maneuver rod prevents it from being pulled out due to internal pressure and prevents any attempt at tampering. These valves do not require maintenance.