Powerful, electric pressure testing pump for pressure and tightness tests of piping systems and receptacles. Testing and pressure range p ≤ 60 bar/870 psi (REMS) or 40 bar/560 psi (Rothenberger). Pumping capacity 6.5 l/min water, hydrous solutions, emulsions, ph-value of liquids 7-10, temperature of liquids ≤ 60°C, viscosity of liquids ≤ 1.5 mPa s.