Single Block And Bleed Valves

Single Block And Bleed Valves

are compact, high-integrity isolation solutions designed to replace multiple valve assemblies with a single, space-saving unit. These valves incorporate an isolation valve (block) and a bleed valve in one body, allowing safe removal of instrumentation or venting of trapped media without disturbing the main process line.

Our SBB valves are precision-engineered to meet stringent performance standards and are suitable for oil & gas, chemical, refineries, power generation, and offshore/onshore applications where high pressure, high temperature, and system integrity are critical.

Available in a variety of configurations, pressure classes, and end connections, Metalok SBB valves are machined from high-grade materials such as SS 316, Monel, Hastelloy, Inconel, and Duplex, ensuring long service life in aggressive environments.

  • Integrated Block and Bleed Function
    Combines isolation and bleed in a single valve for efficient pressure release and maintenance.
  • Compact Design
    Reduces space, weight, and potential leak paths compared to traditional multi-valve assemblies.
  • High Pressure Capability
    Rated up to 10,000 PSI, suitable for critical high-pressure applications.
  • Soft or Metal Seats 
    Available with PTFE, Graphite, or metal-to-metal seating based on service conditions.
  • Multiple End Connections
    Offered with NPT, BSPT, Flanged, Socket Weld, Butt Weld, or Double Ferrule Tube Ends.
  • Enhanced Safety
    Provides a secure means of venting pressure before maintenance or disassembly.
  • Reduces Leak Points 
    Single body construction minimizes threaded connections and potential leakage.
  • Saves Installation Space 
    Combines multiple valves into one, reducing weight and system complexity.
  • Simplifies Maintenance 
    Allows easy isolation and pressure relief without disrupting the process.
  • Improves System Reliability
    Fewer connections and moving parts enhance operational integrity.

    Single Block And Bleed Valves Products