WM74D Double face mechanical seals with Multi-Springs equivalent of Burgmann type M74D

Features

•For plain shafts •Dual seal •Unbalanced •Rotating multiple springs •Independent of direction of rotation •Seal concept based on the M7 range

Advantages

•Efficient stock keeping due to easily interchangeable faces •Extended selection of materials •Flexibility in torque transmissions •EN 12756 (For connection dimensions d1 up to 100 mm (3.94"))

Recommended applications

•Chemical industry •Process industry •Pulp and paper industry •Low solids content and low abrasive media •Toxic and hazardous media •Media with poor lubrication properties •Adhesives

Operating range

Shaft diameter: d1 = 18 ... 200 mm (0.71" … 7.87") Pressure: p1 = 25 bar (363 PSI) Temperature: t = -50 °C ... 220 °C (-58 °F … 428 °F) Sliding velocity: vg = 20 m/s (66 ft/s) Axial movement: d1 up to 100 mm: ±0.5 mm d1 from 100 mm: ±2.0 mm

Combination Materials

Stationary Ring (Carbon/SIC/TC) Rotary Ring (SIC/TC/Carbon) Secondary Seal (VITON/PTFE+VITON) Spring & Other Parts (SS304/SS316)

WM74D data sheet of dimension(mm)