Motor Operated Ball Valve (MOV) — Manufacturer India
API 6D trunnion-mounted full-bore ball valve with electric actuator. Sizes 2–48 inch, Class 150–600. ASTM A105N, WCB, SS316. Fire safe API 607. NACE MR0175. Supplied to crude oil pipelines, SPM systems, and offshore EPC projects.
A motor operated ball valve (MOV) combines a trunnion-mounted ball valve with an electric quarter-turn actuator to provide remote-controlled, automated pipeline isolation. Unlike a floating ball valve, the trunnion-mounted design transfers pipeline thrust loads to the valve body through the trunnion bearings rather than the seats, allowing full-bore isolation at high differential pressures and large bore sizes up to 48 inch. The electric actuator provides open/close control via 4–20mA, HART, or fieldbus (PROFIBUS/Foundation Fieldbus) signals from a DCS or ESD system, with local manual override and position feedback. Supreme Valves India supplies complete MOV packages — valve body, actuator, and all interface documents — for pipeline, offshore, and gas transmission projects.
Technical Specifications
Applications
- Crude oil trunk and feeder pipeline block valves (remotely operated from SCADA)
- SPM (Single Point Mooring) and PLEM offshore jetty pipeline isolation
- Gas transmission pipeline ESD (emergency shutdown) valves
- Refinery crude intake and product dispatch headers
- Gas processing and LNG terminal tie-in block valves
- Offshore platform topside isolation valves
Related Products
Also see: Large Bore Pipeline Ball Valve (24–48 inch), Trunnion Mounted Ball Valve, NACE MR0175 Sour Service Valves.
Frequently Asked Questions
How is the electric actuator sized for a large-bore MOV ball valve?
The actuator output torque requirement is calculated from the valve's break-open torque (BTO) and running torque at maximum differential pressure across the seat, applying a safety factor of 1.25–1.5 per ISA 75.19 guidance. For large bore valves (24 inch and above), multi-turn or quarter-turn electric actuators from Rotork, Auma, or equivalent are selected, with the valve manufacturer confirming the ISO 5211 mounting pad and shaft size. We provide actuator sizing calculations with every MOV supply.
What fail-safe modes are available for an electric actuated ball valve?
Electric actuators offer fail-in-last-position (most common), fail-open, or fail-closed modes. Fail-open and fail-close are achieved using spring-return actuators or battery/capacitor backup power packs that drive the valve to the designated safe position on loss of supply. For pipeline ESD duty, battery backup or spring-return electric actuators are specified to ensure valve closure on power failure.
What certifications does your MOV ball valve package carry?
The valve body meets API 6D design and testing requirements, with fire-safe certification per API 607 or API 6FA. NACE MR0175/ISO 15156 compliance is available for sour service. The electric actuator carries CE marking and ATEX/IECEx certification for hazardous area (Zone 1/Zone 2) as required, plus IP67/IP68 ingress protection. A full documentation package including MTR, hydro test, dimensional, and API 6D type test certificates is supplied with each order.
Need a Motor Operated Ball Valve for a Pipeline or Offshore Project?
Share your valve data sheet or line specification and we will provide a complete MOV package — valve, actuator, mounting, and documentation. We supply to EPC contractors and operators across India, the Middle East, and Africa.