Optimized Flow Control Solutions for the Pulp & Paper Industry

Chemical pulping is a process by which wood or other fibrous feedstocks are processed to separate the non-cellulose components of wood, mainly lignin, from the cellulose fibers used to produce paper and other paper products. There are four chemical pulping processes used to produce paper pulp: kraft, sulfite, neutral sulfite semi-chemical (NSSC), and soda. Strong acids and caustic alkaline bases present challenges to valves and other process equipment in Chemical pulping. Bray works closely with our Pulp & Paper Industry customers to deliver flow control solutions optimized for the chemical pulping process. With more than 30 years of service and a global install base, you can trust Bray to provide valves, actuators and accessories that ensure uninterrupted service in demanding chemical pulping applications including:

Pulp bleaching is the process by which wood pulp is whitened or brightened, without damaging the fibers. Bleaching wood pulp is accomplished by oxidizing the pulp using peroxide or chlorine which are both aggressive chemicals. Bleaching is important for the production of not only white but also colored paper since a bleached surface is needed for dyeing. The process also contributes to the chemical balance and removes dirt/foreign particles. Valves are essential in all stages of the pulp bleaching process including screening, cleaning, bleaching and washing/rinsing the pulp in the bleach plant and bulk bleached pulp storage. Bray valves are designed for exceptional performance with harsh bleaching chemicals and reliability in the pulp bleaching process.