Monoflange Valve – Block and Bleed Valves
Mono-flange Valve -Block and Bleed Valves are engineered for safe, compact, and efficient isolation in high-pressure instrumentation and process systems. Designed to reduce leakage points and installation space, Mono-flange Block and Bleed Valves combine isolation and venting functions into a single robust unit, making them ideal for oil & gas, petrochemical, offshore, power generation, and industrial process applications. Manufactured from premium-grade stainless steel, carbon steel, duplex, and exotic alloys, these valves ensure superior corrosion resistance, pressure integrity, and long service life.
Our Monoflange Block and Bleed Valves are precision-built for reliable shut-off, pressure monitoring, and maintenance isolation in critical applications. Available in multiple pressure ratings, end connections, and material grades, these compact valves improve operational safety while minimizing installation cost and maintenance downtime. Whether for instrumentation systems, pressure transmitters, or process pipelines, Mono-flange Valves deliver dependable performance in demanding environments.
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
