DBB Ball Valves
Established engineered product design, well-known in the industry for subsea, offshore and onshore applications.
Offers space and weight saving, compared to the option of two independent ball valves.
Flanged, WE/WE or flangeless design.
Selected typically for applications where the customer is looking for more reliability in the seats performing with zero leakage, where common failures occur due to foreign particles in the media. This product with a single body with two balls and four seats offers this increased performance capability.
A proven and reliable ball valve design.
Manufactured using forged materials in various grades CS, SS, Duplex and all other high alloys ensuring this design can meet all our customers material requirements.
Manual and/or actuated configuration.
Engineered products typically having a long lead time delivery of 24 weeks or longer.
| SIZES AND PRESSURE CLASSES | ||
| PRESSURE CLASS | ONSHORE / OFFSHORE | SUBSEA |
| ANSI CLASS 150 – 600 | 1″ – 36″ | 1″ – 24″ |
| ANSI CLASS 900 | 1″ – 36″ | 1″ – 24″ |
| ANSI CLASS 1500 | 1″ – 20″ | 1″- 20″ |
| ANSI CLASS 2500 | 1″ – 12″ | 1″ – 12″ |
| API 2.000 (138 BARG) | 1″13/16 – 9″ | 1″13/16 – 9″ |
| API 3.000 (207 BARG) | 1″13/16 – 9″ | 1″13/16 – 9″ |
| API 5.000 (345 BARG) | 1″13/16 – 9″ | 1″13/16 – 9″ |
| API 10.000 (690 BARG) | 1″13/16 – 9″ | 1″13/16 – 9″ |
| API 15.000 (1.035 BARG) | 1″13/16 – 5″ | 1″13/16 – 5″ |
PSL 1, 2, 3, 3G
Other sizes and pressure classes available upon request
| KEY FEATURES AND APPLICATIONS | |
| › FULL AND REDUCED BORE | › CS, SS, DUPLEX, SUPERDUPLEX, INCONEL, INCOLOY ALL TYPES |
| › RF, RTJ, WE, PUP, HUB ENDS | › FIRESAFE |
| › SOFT AND METAL SEATED DESIGN | › ONSHORE, OFFSHORE, SUBSEA |
| › ORING AND LIPSEAL DESIGN | › ABOVE GROUND |
| › SR, DPE, DUAL SEAT DESIGN | › ESD |
| › MANUAL AND ACTUATED | › HIPPS |
| DESIGN FEATURES | |||
| API 6D DESIGN AND CONSTRUCTION | STANDARD | DOUBLE BODY BARRIER | STANDARD |
| TRUNNION MOUNTED | STANDARD | TRIPLE STEM BARRIER | STANDARD |
| INDEPENDENT STEM AND BALL | STANDARD | VENT PLUG | STANDARD |
| FLOATING SEATS | STANDARD | BLEED VALVE | OPTIONAL |
| SOFT SEAT INSERT | STANDARD | DRAIN PLUG | STANDARD |
| METAL-TO-METAL SEATS | OPTIONAL | STEM INJECTION FITTING | STANDARD |
| POLYMERIC LIP-SEALS | OPTIONAL | SEAT INJECTION FITTING | OPTIONAL |
| SELF-RELIEVING SEATS (SR) | STANDARD | SEAT POCKET OVERLAY | OPTIONAL |
| DOUBLE ISOLATION AND BLEED (DIB-1) (DOUBLE PISTON EFFECT) (DPE SEATS) |
OPTIONAL | SEAL AREAS OVERLAY | OPTIONAL |
| DOUBLE ISOLATION AND BLEED (DIB-2) (DUAL SEAT) (SR+DPE) |
OPTIONAL | WETTED PARTS OVERLAY | OPTIONAL |
| DOUBLE BLOCK & BLEED (DBB) | STANDARD | BODY INTERNAL LINING | OPTIONAL |
| FULL OR REDUCED BORE | AS REQUESTED | EXTENDED STEM FOR UNDERGROUND INSTALLATION |
OPTIONAL |
| FLANGED ENDS / WELDED ENDS / HUB ENDS | AS REQUESTED | EXTENDED BONNET FOR LOW OR HIGH TEMPERATURE |
OPTIONAL |
| ANTISTATIC DEVICE | STANDARD | LOCKING DEVICE | OPTIONAL |
| ANTI BLOWOUT STEM | STANDARD | LIFTING LUGS/VALVE SUPPORT | STANDARD |
| FIRESAFE DESIGN | STANDARD | MANUAL OR ACTUATED OPERATION | AS REQUESTED |
| IN-LINE MAINTENANCE | NO | ON-SITE MAINTENANCE | YES |
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