Features and benefits:

• recommended for low to high viscosity, pasty, but still free flowing products
• eccentric worm-drive pump with bearing flange in aluminium
• with mechanical seal or stuffing box
• low wear due to low pump speed
• vertical and horizontal use
• outer diameter of pump tube 50 or 54 mm
• Type F 550 SX.-50/21 for use in Zone 0, tested and certified according to Directive 94/9/EC - ATEX 100a, EC-Type-Examination Certificate No. PTB 99 ATEX 4050/4051 X

Positive displacement pump - eccentric worm type:

• smooth pumping with very little turbulences
• low wear, no valves, vanes etc.
• vertical and horizontal use

Performance curve F 550 S-50/21 with three-phase motor