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BF 31 Gas Butterfly Valve
Brand: Pietro Fiorentini S.p.A.BF31 butterfly valves are interception devices for average/low pressure gas pipelines.
They may be used also for intercepting liquids when a hermetic seal, low pressure losses and compact construction in the flow direction are required.
Features- Hermetic internal seal with shut valve
- Low pressure losses
- Can rotate butterfly through 360° so the seat is self-cleaning without removing the body from the pipe
- Not fitted permanently to pipe, as both flow directions are possible
- Butterfly with sealing ring
- Chromium-plated body spherical seat for longer life with hermetic internal seal and low control torques
- Highly reliable
- Built to UNI 9245 standard
- Face to face according to UNI 9245 and ISO 5752, MSS - SP 67, BS 5155-74 standard
Specifications
Brand
Maximum Operating Pressure
- 16 to 19 bar
Media
- Water, Gas, Compressed Air, Hydrocarbons
Process Connection
- UNI PN 16, Class ANSI 150 RF
Enclosure, Body Material
- Body: P355NH
Material of Construction
- Butterfly: ASTM A350 LF2 CL.1
- Stem: X16CrNi16-2 EN 10088-3 (AISI 431)
- Fixing Screws: X5CrNi18-10 EN 10088-3 (AISI 304)