• These unique patented design Cooling System Test kits feature expansion plugs with a tapering rubber cone to fit a variety of radiator and header tank neck diameters. With a range of just five plug sizes, it is possible to cover a very wide range of applications, from small cars to commercial vehicles & heavy plant. Temperature testing can be carried out by using the thermometer in conjunction with the appropriate expansion plug and by observing the change (or lack of change) in the fluid temperature and by measuring the rate of change of temperature.
• Features a metal hand pump and precision gauge, with specially designed pressure release valve for safe de-pressurising of cooling systems
• A safety retaining clamp specially designed to provide added safety in certain applications by greatly reducing the risk of the expansion clamp slipping from its fixed position, particularly under high pressure in plastic expansion bottles, extreme cold or very high water temperatures
• Blanking caps are provided with both ‘319’ series system testers in order to perform radiator sealing tests, off the vehicle
• Available in car or commercial vehicle kits designed to cover three types of system tests: System Testing, Radiator Testing and Temperature Testing

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