payal manufactures a variety of Instrument Double Block and Bleed (DBB) Valves for the Oil, Gas and Petrochemical industries. Our Instrument Double Block and Bleed (DBB) Valves feature either Needle or Ball Valves depending on our customers’ requirements, and are suitable up to 6,000 PSI. All of our Instrument Double Block and Bleed (DBB) Valves are machined from a barstock body.