Deflection Gauges for Pipe Testing Logiball Deflection Gauges use a nine-arm design to make sure the pipe is accurately tested. Made entirely from steel, their lengths are at least the nominal diameter of the pipe. Stainless steel build also available. Available for 5% or 7.5% deflection for 6â?³ to 21â?³ pipe. Built for the standards required by the customer (BNQ, ASTM or other).
