John R. Robinson Inc products

The VLD3 is our newest model in our vacuum leak detector series. Our vacuum leak detector is a quick and accurate test instrument used to find leaky tubes in heat exchangers, chillers, boilers, condensers, pipes, and all other tubular apparatus’.   This simple yet effective test instrument is currently used by manufacturers, maintenance and repair personnel, industry professionals and first time users alike. Operation and set up is quick and easy, only requiring one man to test an entire bundle; saving time and money. Simply seal the far end of the tubes with a rubber tube plug. Push the rubber nozzle into the near end of the tube. Press the trigger to initiate the compressed air flow through the leak detector creating a vacuum in the tube. If the tube does not hold vacuum the tube has a leak and can be marked for further tube plugging. Larger leaks will show up as larger decreases in vacuum.

The Foam Generator Model 1-965-42 is the answer to high volume, low cost, portable leak detection. This method is ideal for finding leaky tubes quickly when posed with large time sensitive jobs. For example, both halves of a 200 MW condenser can be effectively tested on-line or off-line in less than 3 hours.

A simple test instrument used by manufacturers, repairmen, users of condensers & heat exchangers, to find leaking tubes. Seal the far end of each tube with a rubber tube plug. Push the rubber nozzle into the tube. If the tube does not hold vacuum, the tube is defective. One person does the job in seconds using approx. 90 PSI dry clean air.

The world famous nylon bristle Jet Brush used in Fossil, Nuclear, and Chemical Plants worldwide. Now with more coils and bristles. This coil style brush can be shot from either end using the GC11 Tube Cleaning Gun; the best of its kind. *Jet Brush is also available in specific mm sizes*

Available for tubes with 1/2" to 1-1/2" Outside Diameters. R800-5 series expanders are offered with 1-1/2" long rolls or 2-1/4" long rolls. 5 roll expanders are recommended for work on thin walled tubes of Stainles Steel, Titanium, Incoloy, Copper Nickel (Cupro-nickel), and other exotic materials. The 5 roll expander has more contact with the tube,creating a more concentric and even expansion.More contact on a tubes` Internal Diameter also reduces spring back effect that is common with these tube materials.