DOUBLE BALL & BLEED VALVES
DBB Valve description
Double ball and bleed ball valves (widely known as DBB valves) consist in a couple of insulation Ball Valves integrated in a single body. The bleeding function between the two insulation balls is provided by means of a third valve – usually NEEDLE TYPE and/or other types of valves (ball, globe…available on request).
Nominal Size
1” to 6”
Class
150 to 600
Materials
- Standard carbon steel
- Stainless steel,
- Duplex titanium,
- Super duplex titanium,
- Exotics alloys for different applications.
Features
- Split body bolted double block and bleed ball valve
- Floating ball, full or reduced bore
- Soft and metal seated
- Flanged RF and RTJ
- Antistatic device, fire safe, NACE
Virtually all of Bremer manufacturing range can be offered in DBB execution that means:
- FLOATING or TRUNNION design
- Class range from ANSI #2500
- Temperature range from cryo -196°C to 400°C
- Antistatic, Nace, Ped, Atex, FireSafe, SIL available
- Anti-blow out stem
- Full range of commercially available materials, from low temperature Carbon Steel to Austenitic and Super austenitic Stainless Steel, Duplex and Super Duplex SS, Nickel Alloys, Cupro Nickel Alloys, Aluminium Bronze, Titanium…
- Customized design
Other Features
Tests
On request BREMER Valves can perform all the following additional tests, internally or using certified laboratories:
- EN10204 3.2 Raw Material Certificate
- Cryogenic Test according to BS 6364:1984
- High Temperature Test
- Vacuum Test
- Nitrogen Hight Pressure Gas Test
- Fugitive Emission with Helium Type ISO 15848-2
- Cycle Test
- Dye Penetrant Test
- Magnetic Particles Test
- PMI
- Ultrasonic Test
- RX Test
- Hardness/Ferrite/Corrosion Tests
Certificates
- ISO 9001:2015
- API 6D MONOGRAM 1321
- PED Pressure Equipments Directive 97/23/EC
- ATEX
- SIL II/SIL III
- Fire Safe Certifications according to API 6FA/API 607/BS 6755 PART 2
- TA-LUFT–EPA 21
- CRYO 6364
- Seismic Test