Double Block & Bleed Ball Valve, 1/2-24 Inch, 150-3000 LB

May 27, 2025

Product Name: Double Block and Bleed Ball Valve
Port size: 1/2-24 Inch (DN15-DN600)
Pressure: Class 150-3000 LB, 3000-15000 PSI
Design Standard: EEMUA 182, ASME B16.34
Body material: ASTM A105, A350 LF2, A182 F304, F316, F316L, etc
Connection: Flanged * Flanged, Flanged * Threaded
Medium: Water, Steam, Oil, Gas, etc.
Temperature Range: -46°C to 350°C
Test and Inspection: EEMUA 182, API 598

Key Features of Double Block and Bleed (DBB) Ball Valves

Integrated Valve Solution: Combines two isolation balls and a bleed valve in a single unit, reducing the need for multiple valves and simplifying installation.
Space and Cost Saving: Minimizes installation time, footprint, and system cost compared to traditional multi-valve setups.
Enhanced Safety and Leak Control: Provides double sealing against pressure from both sides with a bleed function to safely vent the cavity between seats, reducing leakage paths and environmental hazards.
Trunnion and Floating Designs: Available in trunnion-mounted (for high pressure and durability) and floating ball versions.
Pressure Relief and Maintenance Ease: Includes needle valves for controlled pressure release and venting, facilitating instrument maintenance and cleaning.
Fast and Reliable Operation: Enables quick isolation and venting, reducing downtime during maintenance.
Applications: Commonly used in instrumentation, oil & gas, chemical, and power industries where compact, safe isolation and bleed are required.