The DSNM™ is designed to suit the Flowserve Polychem ‘S’ Series non-metalic process pump.
Features:

• Non-metallic wetted components in Silicon Carbide for use with corrosive chemicals
• Non-Shaft-fretting design to reduce cost in equipment overhaul
• Cartridge design for ease of installation
• Hydraulically balanced seal faces
• FI-DSNM Incorporates pumping ring to maximize cooling and increase seal life with a directed barrier fluid flow path to both sets of seal faces