Lockwood AL Series Air Coupling Lock (Truck Lock) The Lockwood Air Coupling Locks have been designed for the securing of Truck (Trailer) and industrial compressed air line applications. When attached to the air line this product provides security and safety. Security Whereby the air brakes air line fitting is effectively sealed when the lock is attached, preventing connection to the opposing fitting. In the case of a trailer application this reduces the risk of the trailer being connected to a truck without authorisation. Safety In an industrial application the sealing of the air line can reduce the risk of an accidental connection of equipment when shut down for maintenance etc. RangeThe Lockwood Air Coupling Lock range consists of two series, the AL Series and the TL series. The AL Series comes with an integrated cylinder that can be keyed to most restricted key systems while the TL Series is designed to be locked with a padlock. The AL Series is available in two models to suit both the ½” NPT female air coupling and the ½” NPT male air coupling. AL Series Features Case hardened steel outer sleeve Durable chrome plated finish Spring loaded function, allowing for quick snap-on attachment to ½ inch male air coupling fittings Integrated 6 pin inline (pre-loaded) cylinder included in bulk pack model Compatible with restricted keying platforms Models to suit ½” NPT female and the ½” NPT male air couplings Specification Materials Inner Sleeve: Mild Steel Outer Sleeve: Case hardened mild steel Function Spring loaded function allowing for quick snap-on attachment to ½” air coupling fittings. FinishChrome Plate (CP) Cylinder 577 Synergy 3500 Series dual access lower cylinder.Special KeyingLocks can be keyed to a number of controlled and/or specially keyed systems. These range from legally protected keys to protect against unauthorised duplication and can also include specially designed keying systems such as master key systems. This allows for different levels of mechanical access control. Serviceability Rekeyable cylinder Australian StandardsConforms to AS4945-2000, airline fitting standard. Air Coupling TypesAir Couplings come in different sizes, the AL Series is designed to work with ½ inch couplings; ½” NPT male coupling – AL Series 63 ½” NPT female coupling - AL Series 81 Close Downloads Lockwood Air Coupling Lock Range Catalogue.pdf (.pdf, 657 kB) Close Part Numbers Part Number Description Coupling Type AL1/2/63MM## AL Series 63 Air Coupling Lock ½” NPT male coupling AL1/2/81MM## AL Series 81 Air Coupling Lock ½” NPT female coupling Note: ## in part number is exchanged for keying type. KD - Keyed to Differ (Standard C4 profile 6 pin) KA - Keyed Alike (Standard C4 profile 6 pin) 6MK - Master Keyed (Standard C4 profile 6 pin) Close Dimensions AL Series 63 AL Series 81 Close Where to buy? Find your local Lockwood stockist. Lockwood TL Series Air Coupling Lock (Truck Lock)Hardened steel outer sleeve.