Product Overview
API 641 and ISO 15848 compliant Resolute Ball™ valve design
Reliable Flow Control for Pulp, Mining, and Petrochemical Applications
Resolute Ball™ is a truly unique product designed to solve various customer challenges related to fouling on the upstream ball surface, common in infrequently operated applications. When certain media in pulp and paper, mining, petrochemical, and refining industries remain dormant over time, thick scale accumulates on the ball surface. The seat must scrape scale off a conventional ball, significantly increasing torque and making the valve difficult to operate, often leading to premature valve failure such as seat leakage, stem shear, and operational sticking. The unique Resolute Ball™ design provides an off-the-shelf solution to this common problem. Standard ball valves feature a spherical surface that maintains contact between the ball and seat throughout the full 90-degree operation. When the valve operates, scale accumulated on a conventional ball’s spherical surface passes through the seat sealing area, causing increased torque, scoring of sealing surfaces, and potential operational failure. Bray Resolute Ball™‘s carefully engineered unique geometry has successfully helped our customers overcome these challenges. When the Resolute Ball™ rotates, contact between the ball and seat is minimized after 10 degrees of rotation, significantly reducing media contact with the seat throughout the quarter-turn operation. The Resolute Ball™ geometry allows accumulated media particles to wash past the ball and seat, reducing wear by up to 70%. This unique design provides customers with optimized operation, longer service life, lower valve operating torque, higher reliability, and lower total cost of ownership. Resolute Ball™ is available as a direct replacement for several standard product lines, including one-piece flanged ball valves RF15/RF30 and two-piece flanged ball valves F15/F30. Each of these high-performance product lines is field-proven with extensive global installed bases across various industries. For more information, refer to the individual product line brochures.
Technical Specifications
| Parameter | Value |
|---|---|
| Size Range | F15/F30 Series: 1/2” - 12” (DN 15 - DN 300) RF15/RF30 Series: 1” - 12” (DN 25 - DN 300) |
| Accessory Type | Engineered Direct Replacement |
| Valve Compatibility | F15/F30 Series RF15/RF30 Series |
| Application | Mining, minerals, calcification, scaling, pulp and paper, black liquor, green liquor, white liquor, petrochemical, PVC chloride, polymer/monomer |








