Double Block & Bleed Knife Gate Valves

The DeZURIK Double Block & Bleed Knife Gate Valve is based on the successful KSV Severe Service Knife Gate Valve design. It combines two ASME Class 150 or 300 pressure rated knife gate valves into a single unit with a single actuator and a central bleed port. The valve is constructed with a drain port between the valve seats with either a flanged or threaded end connection. The drain port allows bleed off of media between the valves for verification of positive sealing. This compact design provides a dual isolation solution, allowing personnel to isolate and drain downstream system media while safely maintaining upstream pressure. The integral double valve/single actuator design minimizes leak paths, reduces weight and saves costs.

The Double Block & Bleed Valves can be engineered to meet various lengths, heights and end connections.

• Size range from 3-48″ (80-1200mm) with additional full fabrication sizes available
• ASME Class 150 or 300 pressure rating
• Ideal for extremely abrasive media in the mining, petrochemical, and other industries
• Available in carbon steel, low temperature carbon steel, 2205 duplex stainless or 316 stainless body
• Metal or resilient seats available
• Variety of elastomers available to meet process media conditions