Dwyer Instruments” Series BBV-0 two-valve block manifold is designed for use over a broad range of industrial applications, including oil refineries, nuclear power stations, petrochemical processing, etc. The manifold is forged from 316 stainless steel bar stock and designed to withstand repeated open and close operations. Suited to control oil, water, toxic fluids, chemicals, air, and steam; the two-valve block manifold has (1) isolate and a (1) vent valve. Each valve stem is precision machined with hard seats to reduce operating torque.