At Abdex, we supply a wide range of Double Block and Bleed Valves from Alco—designed for safety, reliability, and long-term performance in demanding environments. Whether you’re working in oil and gas, chemical processing, or offshore systems, these valves offer a simple and effective way to isolate pressure and safely vent systems for maintenance or inspection.
A Double Block and Bleed Valve (DBB) features two isolation valves with a bleed valve in between. This setup provides a higher level of safety compared to traditional single-valve arrangements. By blocking on both sides and bleeding off the space in between, operators can be confident that there’s no pressure or fluid leakage from upstream systems.
We supply Alco DBB valves because they’re built with quality and practicality in mind. They come in a variety of configurations to suit different pressure ratings, installation needs, and process conditions. Some key features include.
These valves are commonly used for instrument isolation, sampling, chemical injection, and maintenance shutdowns—particularly where space is limited and maximum reliability is non-negotiable.
