Teflon AF® Model 403 Degassers

Film degasser systems are an effective—and cost-effective—solution to the challenges of degassing HPLC solvents. The Model 403 Series uses a planar membrane sandwiched between a flow channel and a vacuum plate fixed at its ends with a compression fitting. (Figure 1). Figure 1. Schematic of a Single Film Planar Degasser The double-sided planar degasser series uses the same principle but with a unique internal architecture. A central flow plate separates two parallel pathways, each with a Teflon™ AF membrane and vacuum chamber. The eluent flows down one face of the flow plate and back along the other face (see Figure 2). This provides a large interaction area resulting in highly effective de-bubbling and very efficient degassing. Figure 2. Schematic of a Dual-Film Planar Degasser Advantages of Film Degassers as Replacements Film degassers are also a cost-effective replacement for degassers which use tubular Teflon™ AF 2400 membranes. Since pump cavitation becomes more serious at h