15 Series is designed for ultra high flow applications of up to 28,300 SLPM. The 15 Series is an ultra high purity, 10 Ra, bulk gas pressure reducing regulator. Inlet of 300 psig / 20.7 bar, outlet up to 150 psig / 10.3 bar. Electro-pneumatically controlled option is available. Ideal for use in facility bulk gas delivery.