Tank Car Specialist Training Support Package November 2014 Module 9: Leak Repair
Tank Car Specialist Introduction This module will explain the most common tank car leaks which occur in the top and bottom fittings and valves. The common methods of repairing these leaks will also be presented.
Tank Car Specialist Enabling Learning Objectives 9-1 Identify the safety considerations for containment of leaks. 9-2 Identify the requirements for containment of leaks. 9-3 Identify the various ways in which containers can release their contents.
Tank Car Specialist Enabling Learning Objectives 9-4 Identify the different techniques of containment: Plugging & Patching −Wedges & cones −T-bolt patches −Chemical patches, epoxies −Self tapping screws −Putties & expansion foams −Rubber ball toggle bolts −Various tapes Capping Kits −Chlorine C kit −Midland kit −Various other specialized kits Valve Repair & Replacement −O-rings, gaskets −Valve body replacement
Tank Car Specialist Considerations Compatibility Pressure/nonpressure Location Insulated/noninsulated Type of Leak –Jagged tear –Gouge –Puncture –Seam Interferences −Rust −Grease −Paint
Tank Car Specialist Techniques Non-reactive wedges, cones and devices Magnetic patches Mechanical patches Foam plugs Bladder wraps Adhesive patches
Tank Car Specialist Combination of Multiple Wedges and Cones
Tank Car Specialist Wedge and Putty
Tank Car Specialist T Bolt Plugs
Tank Car Specialist Self-expanding Sealants
Tank Car Specialist Self Tapping Screws for Small Holes Screws, preferably of stainless steel with washers
Tank Car Specialist Putty, Self-Expanding Foam and Other Sealants Putty Silicone Sealer Mastic Epoxy
Tank Car Specialist Pop Rivets Repair holes Attach patches
Tank Car Specialist Ball and Stopper Plug Kits
Tank Car Specialist Plastic Totes and Drums / Tire Seal
Tank Car Specialist Nuts, Bolts, Washers, O Rings
Tank Car Specialist Patch Kits
Tank Car Specialist Industrial Tapes
Tank Car Specialist Vetter Air Bag Systems
Tank Car Specialist Magnetic Patches
Tank Car Specialist Conclusion Participants were given the information to: Identify the safety considerations for containment of leaks. Identify the requirements for containment of leaks. Identify the various ways in which containers can release their contents.