DOUBLE BLOCK & BLEED VALVE

Category: Double Block and Bleed Valves
Features
Features of the Product
• Flange construction as per Std ANSI B16.5 std
• Design & Pressure rating as per std ASME B16.34 std
• NPT Threads as per std ANSI B1.20.1
• Low operating torque
• Bubble tight shut off
• Compact design for instrumentation
• Floating type soft seated ball valve
• Self cavity relief seat design
• Locking kit (Optional )
• Firesafe design option available as per STD API 607 / ISO 10497
Features of Needle Valve Vent
• Re adjustable packing method increase packing life
• Metal to metal seat for bubble tight positive shut off
• Metal back seat to avoid stem blow out during operation and reduce packing stress during full open condition
• Packing below thread to avoid lubricant washout
• Non rotating Tip for long life and self-centering
• Dust cap to protect from contamination
• Supply to NACE MR 0175 / ISO15156, if required
• Anti tamper key (Optional )
• Bleeder plug as an option for vent plug
ANSI Pressure class
150# / 300# / 600# / 900# / 1500# / 2500#
Size
1/2" to 3” ( DN 15 to DN 80 )
Bore size
10MM , 13MM, 14MM, 19MM ,25MM
Materials
SS 316/316L , A105 / 350LF2, MONEL, INCONEL, DUPLEX, SUPER DUPLEX, HASTELLOY
Gland packing
PTFE / RPTFE / GRAPHITE
Seat
PTFE / RPTFE / DEVLON / PVDF / PEEK / CF PTFE / METAL TO METAL
Working Temperature
-29°C To +250°C ( -20.2°F To +482°F)
Testing
100% Hydro testing performed as per Std BS EN 12266-1 / API 598
Inlet
Flanged end (RF / RTJ)
Outlet
Flanged end ( RF / RTJ ) or Screwed end ( NPT )
Vent
1/2" (or) 1/4” NPT / BSPP / BSPT