64-3400 Series dual-stage, ultra high purity pressure reducing regulator offers a tied diaphragm design and 10 Ra microinch / 0.25 micrometer surface finish with optional Hastelloy® trim. Inlet pressure is 3500 psig / 241 bar with outlet pressures up to 150 psig / 10.3 bar. Ideal for use in gas cabinets, semiconductor manufacturing and research labs.