Fully Welded Ball Valve

Size:
2 to 60 in

Pressure class:
ANSI 150 to 2500

Temperature range:

–50 to 392 degF [–46 to 121 degC]

Connection type:
Flange Ends ,Butt Welded

Operation:
Manual, Worm Gear, Electrical Actuated, customized
 

Description

 Forged Steel Fully Welded Ball Valve

EDVC Top Entry trunnion mounted ball valves have been designed for Severe Service and generally used in the Petrochemical, Refining, Upstream Oil and Gas, Power and Chemical applications. The designs incorporate many technically advanced features which ensure reliable and repeatable shut off performance whilst providing the highest levels of safety as demanded by these industries.

 

Design, manufacture and materials conform to the essential requirements of API 6D, ISO 14313, ASME B16.34, ASME VIII and Directives PED 97/23/EC and ATEX 94/9/EC.
Certified firesafe in accordance with API 607 6 th Edition / ISO 10497.
Anti-static design (10Ώ under 12 Volt).
Fully contained cover gasket, graphite seal is protected from the working fluid by primary elastomeric seal for soft seated.
Body wall thickness exceeds the minimum requirements of ASME B16.34.
Full and reduced bore designs available.
Trunnion supported ball design for superior bi-directional shut off performance across a wide range of pressures.
Single piece body TOP ENTRY construction for in-line and on-site maintenance.
Internally assembled blow-out proof stem design. Bottom entry stem shouldered directly to the body cover and not to any other intermediate bolted part.
Standard valve features High integrity stem sealing system in compliance with ISO 15848 Class AH & API 622 suitable for high vacuum service and technically emission free.
In line maintainable stem sealing system. Replaceable without the need for valve disassembly or removal of stem.
Bi-directional, double block & bleed design allowing the venting and draining of the body in the open & closed position.
Pressure and spring assisted seat design is of the single piston effect as standard. Double piston effect available.
Positive cavity relief via single piston effect spring loaded seat design, relief is always to the low pressure side.
Large guided stem (bearings) with hardness control between parts to minimize operational torques.
Positive seat sealing at high and low differential pressures.
Emergency sealant injection provision to seat and stem seal is available.
Metal seated designs for CRITICAL or SEVERE service applications. Low and high temperature service designs available.
Testing and marking to API 6D & PED (as required).
Available with pneumatic, hydraulic or electric actuat

Applications :
Oil and Gas Product Pipelines and Transmissions
Gas Storage
Compressor Stations and Measuring Skids
Onshore and Offshore Platforms
Dehydration, Dryer, Gas Separation Systems
Liquid Gas Launch and Receiving Stations

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