Reduced cost of automation through high-efficiency packing and live loaded seats.
Low operating torque and reduced cost of automation through high efficiency packing and live loaded seats
TUFSEAT® Performance Series' ball and seat are fully machine lapped, not hand-lapped. The lapping process uses very precise tolerances to ensure optimal contact between the ball and seat resulting in the required leakage class without excessive operating torque at the stem The trunnion-mounted ball design offers a square polygon stem-to-ball connection which reduces stress for more efficient torque transmission.
PACKING - Through the use of 3 layers of seals in the packing arrangement, the design meets the required fugitive emissions standards with minimal compression resulting in lower friction and operating torque.
SEAT DESIGN - Live-loaded seats designed to offset temperature swings during normal valve operation ensure consistent contact pressure between ball and seats to maintain steady torque without sacrificing shut off performance.
STEM and COATINGS - Polished stem and adequate coating selection on ball and seats avoid extensive wear and erosion that could result in preventable torque spikes affecting the operation of the unit
CAPITAL INVESTMENT - Lower initial torque enables the use of smaller actuators, reducing capital cost and overall weight.
LOW COST OF OWNERSHIP - Consistency in required torque throughout the life of the valve prevents operational challenges the could result in lengthy shutdowns and expensive maintenance procedures.
PERFORMANCE - Low torque is achieved through the highly engineered seat design and coating selection which maintains its tight seat-leak performance even at a wide range of operating pressures and temperatures.
