• Tight Shutoff and Environmental Sealing
• Superior Operational Performance
• Enhanced Safety and Reliability
• Innovation at Good Value
• Significant Reduction in Downtime

Tight Shutoff and Environmental Sealing
Mechanically-loaded seal
• Seals at both low and high pressures
• Bi-directional sealing

Resilient seals or metal-to-metal seats
• Zero-leakage (bubble-tight shutoff) resilient seat
• ISO 5208 Rate A (Zero Leakage) or Rate B shutoff for metal-to-metal seat
• Unique ability to change seals from resilient to metal or metal to resilient without changing out valve

Segmented sphere rotates around a stationary core
• Service fluid (and entrained particulates) directed away from sealing surface for minimal erosion of seats

Seat not loaded except for last 5 to 10% of closure
• Wiping of debris prior to sealing
• Reduced wear on seat

Quarter-turn operation
• Lower emissions than rising stem designs
• Easy packing adjustment to stop external leaks

Injectable Packing Option
• Provides redundant stem packing
• Stops stem leaks even with damaged or faulty packing rings

Superior Operational Performance
Offset hemispherical closure member
• Low hydrodynamic torque in high flow
• Predictable closing and breakaway torque
• Improved closing reliability in ESD application

Quarter-turn (90°) operation
• Easy to automate
• Uses existing ball valve actuation and sizing principles

Contoured hemi option
• Provides a characterized flow curve
• Resilient-seat throttling capability
• Metal-to-metal seat throttling capability

Extended bonnet and bolted gland packing
• Suitable for temperatures to 426°C

Mechanical-loaded seat
• Suitable for thermal cyclic applications

Enhanced Safety and Reliability
Robust stem and driver
• Minimizes chances of valve damage due to excessive torque application
• Provides relatively high actuator sizing safety factor
• Variety of stem materials (with different strengths) available for specific corrosive or viscous applications

Quarter-turn (90°) operation
• Fast closure for ESD applications

Single seat with no cavities to trap fluids
• No thermal lock or overpressure of body
• No special consideration for actuator sizing
• No need for pressure relief

Fire-safe design
• Increased ability to maintain shutoff in the event of a fire

Stationary core
• Flow is not directed at valve body wall – low erosion of
pressure containing components
• Low turbulence and reduced erosion of valve internals
• Low hydrodynamic torque

Heavy body and closure member, low center of gravity
• Outstanding seismic and shock performance

Triple retainer plate option
• Improved reliability in high shock applications

Innovation at Good Value
All trim contained in one cartridge
• Opportunity for improved control of serialization, traceability, and monitoring of repaired valves
• Improved traceability of trim components
• Less opportunity for error during servicing

Low profile (compared to gate and rising stem ball valves)
• Takes up less space in construction
• Low center of gravity – superior seismic performance
• Commercial – less material used in construction

Significant Reduction in Downtime
Top entry
• Valve does not have to be removed from line for repair
• Easy access for repair & inspection
• Weld end valves do not have to be removed or reinstalled

Replaceable cartridge
• Ability to easily and quickly inspect valve
• Easily capable of revising trims for throttling
• Fewer parts to stock
• Minimal downtime for valve repair
• No special tools required for service
• Easily capable of revising trim alloy materials
• Easily capable of changing from resilient to metal seats
• One cartridge fits multiple pressure classes of same size
• Ability to install a temporary strainer for startup purposes
• Ability to install a temporary trim for welding valves in line

Pre-tested cartridge
• Reduced chance of multiple repairs
• Confidence in making a reliable repair
• Reduced downtime

No lubrication required
• Maintenance savings
• No contaminants added to process stream

Aligned body, seat, and core – straight through bore
• High flow coefficient
• Valve may be pigged
• Low dynamic forces during high flow

Extended body option
• Remote access of a valve in a pit or other difficult to access area