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DBB 'B' Series Manifold
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 | ||
|---|---|---|---|---|---|---|
| (in.) | (mm) | (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 |
