DBB 'B' Series Manifold (ID=276)

Double Block & Bleed (Ball-Needle-Ball) 6,000 psi

The Double Block & Bleed Manifold is fully approved to be supplied to many of the major oil companies. The design provides an economical method for mounting gauges with facility to test and calibrate gauges and pressure switches. The DBB 'B' series offers roddability due to its straight through flow passage. The vent valve incorporating the long service firesafe 'N' series needle valve, graphite multi-ring piston style packing and back sealing facility. Mounting holes supplied as standard for wall or bracket mounting.

Bi-directional floating ball design to ensure leak-proof shut-off on pressure or vacuum
90° smooth action, low torque operation
Vent valve metal to metal body bonnet seal for high pressure and high temperature sealing
Anti-blowout internally loaded stem for safety
Flexible 3 piece design for easy maintenance
Temperature range -40°C to 150°C
Firesafe design
Repair/service kits available to extend service life further
Available in 316/316L stainless steel
Full material traceability
Handle indicates OPEN/CLOSED position at a glance
Materials of construction supplied to meet the requirements of NACE MR 0175

DBB 'B' Series Manifold

Part Number	Size	A		CV	Weight
Part Number	Size	(in.)	(mm)	CV	(lbs.)	(Kg)
EDBB-BNB-BV4NS-PM-FS	1/2" NPT	4.92	125	13.9	2.76	1.25

15Valve Handle (2)UNS S31600117M6 Handle BoltA4 ST/ST119Vent Dust CapPVC121Locking CamUNS S31600123Needle StemA479 UNS S31600125Bonnet HousingUNS S31600127Bonnet SealUNS S316001

Item Number	Description	Material	Quantity
1	End Connector	A479 UNS S31600	2
2	Body Seal	Graphite	2
3	Manifold Body	A479 UNS S31600	1
4	1/4" NPT Blank Plug	A479 UNS S31600	1
5	Spacer	UNS S31600	2
6	Gland Packing	Graphite	6
7	Gland Packing	Graphite	2
8	Anti-Extrustion Seal	PEEK	4
9	Seat	PVDF	4
10	Stem	A479 UNS S31600	2
11	Ball	A479 UNS S31600	2
12	Belleville Washer	ST/ST	4
13	Stem Nut	A4 ST/ST	2
14	Valve Handle (1)	UNS S31600	1
16	Stop Pin	UNS S31600	2
18	"T" Handle	UNS S31600	1
20	Gland Locknut	UNS S31600	1
22	Cam Screw	A4 ST/ST	1
24	Gland Adjuster	UNS S31600	1
26	Stem Seal	RTFE	1
28	Valve Tip	A564 UNS S17400	1