Monoflange Valve – Double Block and Bleed Valves

Mono-flange Double Block and Bleed Valves (DBB Valves) are designed for secure isolation, pressure control, and leak-proof performance in critical industrial systems. These high-pressure Mono-flange valves feature a compact design that reduces installation space, minimizes leak points, and improves operational safety. Widely used in oil & gas, petrochemical, offshore, refinery, and instrumentation applications, DBB valves deliver reliable performance in demanding environments.

Built for durability and corrosion resistance, our Double Block and Bleed Valves ensure efficient process isolation, easy maintenance, and long service life. Engineered for high-performance applications, these industrial DBB valves are ideal for industries seeking dependable, compact, and cost-effective valve solutions with maximum safety and efficiency.

Flange size

• 50 – ½”
• 75 – ¾”
• 10 – 1”
• 150 – 1½”
• 200 – 2”
• 300 – 3”

Flange class

• 150lb
• 300lb
• 600lb
• 900lb
• 1500lb
• 2500lb

Flange type

• RTJ – Ring type joint
• RF – Spiral finish raised face

Connection size

• ¼” (std vent)
• ⅜”
• ½” (std process/instrument)

Instrument connection

• NPT standard
• BP – BSP parallel pipe thread BS2779-1986
• BT – BSP taper pipe thread BS21 – 1985
• CE – Compression fitting