Main Technical Data Diameter DN15 DN20 Material Zinc Alloy or Brass Flux Coefficient 80 for DN15 115 for DN20 Max. Working Pressure 175 psig/1.2 mpa (12 bar) Factory Hydrostatic Test 100% @ 500psig (3.4 mpa) Min. Operating Pressure 7 psig/0.048 mpa (0.48 bar) Escutcheon Finish Chrome Plated or White Paint