HOME / PRODUCTS / MECHANICAL SEALS / DUAL CARTRIDGE MECHANICAL SEALS / MECHANICAL SEAL STYLE 78
FEATURES:
Easy to install cartridge designs
Incorporated pumping ring improves the movement – and the cooling effect – of the barrier fluid during operation
A tangential connection maximizes the flow of barrier fluid
Can be operated in pressurized or non-pressurized configurations
Static O-rings throughout cartridge
Self-cleaning bellows action
Fits ANSI standard and big bore pumps
Metric sizes are available
Tandem design maintains product and barrier fluid on O.D. of both seals for increased safety and heat dissipation
Hydraulically balanced design
Double-ply bellows design available for higher pressure
Shrouded face design for added protection
Designs available include API 682 Type B low temperature and Type C high temperature as well as Tandem Arrangements 2 and 3
SPECIFICATIONS:
Operating Conditions
Max Temp: 400°F (204°C)
Max Pressure: Inboard - 300 PSI (20 bar)
Outboard - 250 PSI (17 bar)
Max Speed: 4500 FPM (22 m/sec)
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Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time. Contact Specialised Seals if in doubt.
Tandem Rotating Welded Bellows Cartridge
Mechanical Seal Style 76
Cost effective version of Style 78, designed for applications in which pumping ring or tangential connection are not required
SPECIFICATIONS:
Operating Conditions
Max Temp: 400°F (204°C)
Max Pressure: Inboard - 300 PSI (20 bar)
Outboard - 250 PSI (17 bar)
Differential Pressure - 15-25 PSIG recommended. Higher pressure is available consult Specialised Seals.
Max Speed: 4500 FPM (22 m/sec)
​
Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time. Contact Specialised Seals if in doubt.