H74-D Mechanical seals for pumps

$0.00

Additional information

SEAL FACE Silicon carbide (Q1, Q2), Carbon graphite antimony impregnated (A), Aluminium oxide (V), Special cast CrMo steel (S)
SEAT G9 Carbon graphite antimony, impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1*,Q2*)
SECONDARY SEALS EPDM (E), NBR (P),
SPRINGS CrNiMo steel (G)
METAL PARTS CrNiMo steel (G), Duplex (G1)
Category:
Description

Description

 

Features

  • For stepped shafts
  • Dual seal
  • Balanced
  • Rotating multiple springs
  • Independent of direction of rotation
  • Seal concept based on the H7 range
  • *Variant with pumping screw available
  • (H74F-D)

Advantages

*Efficient stock keeping due to easily interchangeable faces

  • Extended selection of materials
  • Flexibility in torque transmissions-
  • Insensitive to low solids contents

*EN 12756 (For connection dimensions d1 up to 100 mm (3.94″)) (G16)

H74-D Mechanical seals for pumpsOperating range

Shaft diameter:

d1 = 14 … 200 mm (0.55″ … 7.87″)

Pressure:

p1 = 80 bar (1,160 PSI) for d1 = 14 … 100mm,

p1 = 25 bar (363 PSI) for d1 = 100 … 200mm,

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 100 mm: ± 0.5 mm

d1 from 100 mm: ± 2.0 mm

Recommended applications

  • Process industry
  • Oil and gas industry
  • Refining technology
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • Pulp and paper industry
  • Low solids content and low abrasive
  • Toxic and hazardous media
  • Media with poor lubrication properties
  • Adhesives
  • Chemical standard pumps
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