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DBB Compact Styles DBB Flanged Style Floating Ball DBB Valve Floating Compact CSL Ball needle ball double flanged with inside screw needle vent Flanged by screwed ball needle ball modular valve Double Block and Bleed valves

DBB Valves

Double Block Bleed Valve

Standard Compliance:
Basic Design: ANSI / ASME B16.34, API 6D, API 6A, BS5351, BS 6755 / BS EN 12266, NACE MR 01 75, ANSI, ISO & API standards
Face to Face Standard: ANSI / ASME B16.10, API 6D
Flanged End Standard: ANSI / ASME B16.5 (2”-24”)
ANSI / ASME B16.47 (>24”)

Butt Welding (BW) End Standard: ANSI  / ASME B16.25
Socket Welded (SW) End Standard: ANSI / ASME B16.11
Screw/Thread End Standard: ASME B1.20.1
Test and Inspection standard: API 6D / API598
Fire-safe Design / Test standard: API 6FA, API607
Other standard: NACE MR-0175

Specifications:
Pressure: 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
NPS: 1/2”~24”
Bore: Full Bore and Reduced Bore
End Contenction: Fanged (RF/FF/RTJ), Socket Welded(SW), Butt Welding(BW), Hub, Thread/ScrewedSeat

Design: Soft Seated, Metal to Metal, Single & Double Piston effect.
Operater: Lever / Gear / Pneumatic / Hydraulic / Electric / Gas over Oil / Quarter Turn / Rack and Pinion / Scotch Yoke.

Materials Construction
Carbon Steel:
ASTM A105N, A216 WCB/WCC/WCA
Low Temperature Carbon Steel (LTCS)/Alloy Steel:
ASTM A350 LF2, A352 LCB/LCC/LCA
ASTM A350 LF1/LF3/LF5/LF6/LF9/LF787, A352 LC1/LC2/LC2-1/LC3/LC4/LC9/, A743 CA6NM
High Temperature Steel(Chrome Moly)/Alloy Steel:
ASTM A182 F1/F5a/F9, A217 WC1/C5/C12
ASTM A182 F11, A182 F22, A216 WC6, A217 WC9
ASTM A182 F91, A217 C12A
Austenitic Stainless Steel/Alloy Steel:
ASTM A182 F304 (L) (H) / UNS S30400 (S30403) (S30409), A351 CF8/CF3/CF10
ASTM A182 F316 (L) (H) / UNS S31600 (S31603) (S31609), A351 CF8M/CF3M/CF10M
ASTM A182 F316 Ti / UNS S31635
ASTM A182 F321 (H) / UNS S32100 (S32109)
ASTM A182 F347 (H) / UNS S34700 (S34709), A351 CF8C
ASTM A182 F317L / UNS 31703, A351 CG3M
ASTM A182 F44 (6MO), ASTM CK3MCuN
ASTM A182 F20*(ALLOY 20#) / UNS N08020, A351 CN7M
Ferritic-Austenitic / Duplex / Super Duplex Stainless Steel:
ASTM A182 F51 /UNS S31803 /S32205 (Duplex2205), A890/A995 GR.4A (J92205) /A351 CD3MN
ASTM A182 F52,
ASTM A182 F53 / UNS S32750 (Super Duplex2507), A890/A995 GR.5A / A351 CE8MN (CD4MCu)
ASTM A182 F55 / UNS S32760, A890/A995 GR.6A (CD3MWCuN)
ASTM A182 F60 / UNS S32950
Super Austenitic ASTM A182 F44 / UNS S31254, A351 CK3McuN
Alloy 20 ASTM B462 / UNS N08020
Monel 400 / UNS N04400 ASTM B564-N04400 / A494 M35-1
Monel 500 / UNS N05500 ASTM B564-N05500
Nickel Alloy 904L / UNS N08904
Inconel 600 /UNS N06600 /ASTM B564-N06600 /ASTM A494-CY40
Inconel 625 /UNS N06625 /ASTM B564-N06625 /ASTM A494-CW6MC
Inconel 800 /UNS N08800 /ASTM B564-N08800
Inconel 825 /UNS N08825 /ASTM B564-N08825 /A494 CU5MCuC
Hastelloy C-276 /UNS N10276 /ASTM B564-N10276 /ASTM A494 CW2M
Titanium ASTM B381 GR.F2/UNS R50400, B367 GR. C2, ASTM B381 GR.F3, B367 GR.C3,
ASTM B348 / B381 / UNS R50400
BRASS C36000/ Bronze / Aluminium Bronze ASTM B62 UNS C83600,ASTM B148 C95800/ BS1400 AB2

Features:
variants of gate, globe, plug and ball Type, Floating & Trunnion Mounted, End Entry, Top Entry, Cryogenic, Firesafe Certified, Anti-static, Blow-out proof stems, drain valves of ball, globe, needle.

Applications:
Power Generation, Chemical Processing, Gas Production, LNG, Offshore, Oil Production, Petrochemical Processing, Petroleum Production and Refining
Industries:  Gas Treatment, LNG, Oil and Gas, Power Generation


DBB Compact Styles DBB Flanged Style Floating Ball DBB Valve Floating Compact CSL Ball needle ball double flanged with inside screw needle vent Flanged by screwed ball needle ball modular valve Double Block and Bleed valves