WH7N O-Ring Component mechanical seals, replacement of Eagle burgmann H7N

Features

•For stepped shafts •Single seal •Balanced •Super-Sinus-spring or multiple springs rotating •Independent of direction of rotation •Integrated pumping device available •Variant with seat cooling available

Advantages

•Universal application opportunities (standardization) •Efficient stock keeping due to easily interchangeable faces •Extended selection of materials •Flexibility in torque transmissions •Self-cleaning effect •Short Installation length possible (G16)

Recommended applications

•Process industry •Oil and gas industry •Refining technology •Petrochemical industry •Chemical industry •Power plant technology •Pulp and paper industry •Food and beverage industry •Hot water applications •Light hydrocarbons •Boiler feed pumps •Process pumps

Operating range

Shaft diameter: d1 = 14 ... 100 mm (0.55" ... 3.94") (Single spring: d1 = max. 100 mm (3.94")) Pressure: p1 = 80 bar (1,160 PSI) for d1 = 14 ... 100 mm, p1 = 25 bar (363 PSI) for d1 = 100 ... 200 mm, p1 = 16 bar (232 PSI) for d1 > 200 mm Temperature: t = -50 °C ... 220 °C (-58 °F ... 428 °F) Sliding velocity: vg = 20 m/s (66 ft/s) Axial movement: d1 up to 22 mm: ± 1.0 mm d1 24 up to 58 mm: ± 1.5 mm d1 from 60 mm: ± 2.0 mm

Combination Materials

Rotary Face Silicon carbide (RBSIC) Carbon graphite resin impregnated Tungsten carbide Cr-Ni-Mo Steel (SUS316) Stationary Seat  Silicon carbide (RBSIC) Carbon graphite resin impregnated   Tungsten carbide Auxiliary Seal  Fluorocarbon-Rubber (Viton) Ethylene-Propylene-Diene (EPDM)   Silicone-Rubber（MVQ) PTFE Coated VITON Spring  Stainless Steel (SUS304) Stainless Steel （SUS316)  

WH7N data sheet of dimension (mm)