Novent Key Style locking caps were specifically designed to protect standard Schrader service valves on A/C units to help prevent leakage or misuse of refrigerant on residential and commercial equipment.
When installed, the outer casing will rotates around the thread insert, not allowing cap to be removed, an integral torque limiter prevents over tightening
Novent locking cap have an inner thread insert made of precision machined solid brass
Outer shells is made of a protective corrosion resistant anodized aluminum shroud
Integral neoprene O-ring resists oils and sealants
Embossed ID labeling prevents refrigerants gas mixing
Grasp cap, insert keys and turn clockwise until snug
Place female thread of the Novent cap onto male thread of the Schrader valves and tighten securely be hand using the Novent keys
Grasp cap, rotates keys counterclockwise and remove keys
