Fully Welded Ball Valves
Established product design, well-known in the pipeline industry.
Offers a reduced overall weight, especially in larger sizes 24″ and above with the welded ends.
Manufactured with forged materials in the various grades of CS, SS, Duplex and all other high alloys, thus ensuring this design can meet all our customers material requirements.
Compact body design available in large sizes 24″ and above, with weld end/weld end connections.
Alternative option to the side-entry bolted body (MV3) for specific design applications.
Typically used in underground service gas transmission pipelines or subsea. These are the most commonly used applications.
The body is welded together, if repairs are required, it is a major exercise, which can only be performed at manufacturer’s plant.
| SIZES AND PRESSURE CLASSES | ||||
| SERVICE | ASME CL. 150-600 |
ASME CL. 900 |
ASME CL. 1500 |
ASME CL. 2500 |
| STANDARD (ABOVE AND BELOW GROUND) | 2”-60” | 2”-48” | 2”-36” | 2”-16” |
| SUBSEA (API 6DSS) | 2”-48” | 2”-36” | 2”-24” | 2”-16” |
| LOW TEMPERATURE / CRYOGENIC DOWN TO -196°C | N/A | N/A | N/A | N/A |
| HIGH TEMPERATURE < +500°C | N/A | N/A | N/A | N/A |
Other sizes and classes available upon request
| KEY FEATURES AND APPLICATIONS | |
| › FULL AND REDUCED BORE | › API 6D/6DSS |
| › RF, RTJ, WE, PUP, HUB ENDS | › FIRESAFE |
| › SOFT AND METAL SEATED DESIGN | › ONSHORE, OFFSHORE, SUBSEA |
| › ORING AND LIPSEAL DESIGN | › ABOVE GROUND, UNDERGROUND |
| › SR, DPE, DUAL SEAT DESIGN | › ESD |
| › CS, SS, DUPLEX, SUPERDUPLEX, INCONEL, INCOLOY ALL TYPES | › HIPPS |
| › MANUAL AND ACTUATED | |
| DESIGN FEATURES | |||
| API 6D DESIGN AND CONSTRUCTION | STANDARD | DOUBLE BODY BARRIER | STANDARD |
| FACE-TO-FACE DIMENSIONS TO API 6D AND ANSI B16.10 |
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 |
| PRIMARY METAL – SECONDARY SOFT SEAT | OPTIONAL | STEM INJECTION FITTING | STANDARD |
| METAL-TO-METAL SEATS | OPTIONAL | SEAT INJECTION FITTING | OPTIONAL |
| O-RING TYPE SEALS | STANDARD | SEAT POCKET OVERLAY | OPTIONAL |
| POLYMERIC LIP-SEALS | OPTIONAL | SEAL AREAS OVERLAY | OPTIONAL |
| SELF-RELIEVING SEATS (SR) | STANDARD | WETTED PARTS OVERLAY | OPTIONAL |
| DOUBLE ISOLATION AND BLEED (DIB-1) (DOUBLE PISTON EFFECT) (DPE SEATS) |
OPTIONAL | BODY INTERNAL LINING | OPTIONAL |
| DOUBLE ISOLATION AND BLEED (DIB-2) (DUAL SEAT) (SR+DPE) |
OPTIONAL | EXTENDED STEM FOR UNDERGROUND INSTALLATION |
OPTIONAL |
| DOUBLE BLOCK & BLEED (DBB) | OPTIONAL | EXTENDED BONNET FOR LOW OR HIGH TEMPERATURE |
OPTIONAL |
| FULL OR REDUCED BORE | AS REQUESTED | LOCKING DEVICE | OPTIONAL |
| FLANGED ENDS / WELDED ENDS / HUB ENDS | AS REQUESTED | LIFTING LUGS/VALVE SUPPORT | STANDARD |
| TRANSITION PUPS FOR WELDED ENDS VALVES | OPTIONAL | MANUAL OR ACTUATED OPERATION | AS REQUESTED |
| ANTISTATIC DEVICE | STANDARD | FIRESAFE DESIGN | STANDARD |
| ANTI BLOWOUT STEM | STANDARD | IN-LINE MAINTENANCE | NO |
| TRUNNION MOUNTED | STANDARD | ON-SITE MAINTENANCE | YES |
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