MODULAR DOUBLE BLOCK & BLEED VALVE (DBB)
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 • Low operating torque • Bubble tight shut off • Compact design to save space & Weight • 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 • Bore: Full bore / Reduced bore 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. • Anti tamper key (Optional ) • Bleeder plug as an option for vent plug • Painting/Coating As per customer requirement |
---|---|
ANSI Pressure class |
150# / 300# / 600# / 900# / 1500# / 2500#
|
Size |
1/2" to 4” ( DN 15 to DN 100)
|
Bore size |
10MM AS STANDARD &13MM,14MM,19MM AS OPTIONAL SIZE
|
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 |
-46°C To +250°C ( -50.8°F To +482°F)
|
Testing |
• 100% Hydro testing performed as per Std BS EN 12266-1 / API 598
• Gas test ( Low & High pressure ) - optional |
Inlet |
Flanged end ( RF/RTJ )
|
Outlet |
Flanged end ( RF/RTJ )
|
Vent |
1/4" | 1/2” | 3/4" (NPT)
|