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 |
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ANSI Pressure class |
150# / 300# / 600# / 900# / 1500# / 2500#
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Size |
1/2" to 3” ( DN 15 to DN 80 )
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Bore size |
10MM , 13MM, 14MM, 19MM ,25MM
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Materials |
SS 316/316L , A105 / 350LF2, MONEL, INCONEL, DUPLEX, SUPER DUPLEX, HASTELLOY
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Gland packing |
PTFE / RPTFE / GRAPHITE
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Seat |
PTFE / RPTFE / DEVLON / PVDF / PEEK / CF PTFE / METAL TO METAL
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Working Temperature |
-29°C To +250°C ( -20.2°F To +482°F)
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Testing |
100% Hydro testing performed as per Std BS EN 12266-1 / API 598
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Inlet |
Flanged end (RF / RTJ)
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Outlet |
Flanged end ( RF / RTJ ) or Screwed end ( NPT )
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Vent |
1/2" (or) 1/4” NPT / BSPP / BSPT
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