MFL85N metal bellow mechanical seal for marine industry

Short Description:

Welded metal bellows mechanical seals Type WMFL85N is high parameter seal, used in corrosive media and large friction coefficient media. With good floatability and random compensatory, widely used in petrochemical industry, sewage treatment industry and paper industry. It is used for big compressors and industrial pump metal bellows seal, big pump mixer and agitator seal, industrial pump magnetic seal.

Analogue for: Burgmann MFL85N, Chesterton 886, John Crane 680, Latty B17, LIDERING LMB85


Product Detail

Product Tags

Our firm insists all along the quality policy of “product high quality is base of organization survival; consumer fulfillment could be the staring point and ending of an company; persistent improvement is eternal pursuit of staff” along with the consistent purpose of “reputation 1st, purchaser first” for MFL85N metal bellow mechanical seal for marine industry, Excellent is factory’s existence , Focus on customers’ demand is the source of enterprise survival and advancement, We adhere to honesty and superior faith operating attitude, looking ahead to the coming !
Our firm insists all along the quality policy of “product high quality is base of organization survival; consumer fulfillment could be the staring point and ending of an company; persistent improvement is eternal pursuit of staff” along with the consistent purpose of “reputation 1st, purchaser first” for , So far our merchandise have been exported to east Europe, the Middle East, Southeast, Africa and South America etc. We have now 13years experienced sales and purchase in Isuzu parts at home and abroad and the ownership of the modernized electronic Isuzu parts checking systems. We honor our core principal of Honesty in business, priority in service and will do our best to provide our customers with high quality items and excellent service.

Features

  • For unstepped shafts
  • Single seal
  • Balanced
  • Independent of direction of rotation
  • Metal bellows rotating

Advantages

  • For extreme temperature ranges
  • No dynamically loaded O-Ring
  • Self-cleaning effect
  • Short installation length possible
  • Pumping screw for highly viscous media available (dependent on direction of rotation)

Operating Range

Shaft diameter:
d1 = 16 … 100 mm (0.63″ … 4“)
Externally pressurized:
p1 = … 25 bar (363 PSI)
Internally pressurized:
p1 <120 °C (248 °F) 10 bar (145 PSI)
p1 <220 °C (428 °F) 5 bar (72 PSI)
Temperature: t = -40 °C … +220 °C
(-40 °F … 428) °F,
Stationary seat lock necessary.
Sliding velocity: vg = 20 m/s (66 ft/s)

Notes: The range of preesure,temperature and sliding velocity is depend on seals

Combination Material

Rotary Face 
Silicon carbide (RBSIC)
Carbon graphite resin impregnated
Tungsten carbide
Stationary Seat
Silicon carbide (RBSIC)
Tungsten carbide
Elastomer 
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
PTFE Enwrap Viton

Bellows
Alloy C-276
Stainless Steel (SUS316)
AM350 Stainless Steel
Alloy 20
Parts
Stainless Steel (SUS304)
Stainless Steel (SUS316)

Mediums: Hot water, oil, liquid hydrocarbon, acid, alkali, solvents, paper pulp and other medium-and-low-viscosity content.

Recommended Applications

  • Process industry
  • Oil and gas industry
  • Refining technology
  • Petrochemical industry
  • Chemical industry
  • Hot media
  • Cold media
  • Highly viscous media
  • Pumps
  • Special rotating equipment
  • Oil
  • Light hydrocarbon
  • Aromatic Hydrocarbon
  • Organic solvents
  • Week acids
  • Ammonia

product-description1

Item Part no. DIN 24250 Description

1.1 472/481 Seal face with bellows unit
1.2 412.1 O-Ring
1.3 904 Set screw
2 475 Seat (G9)
3 412.2 O-Ring

WMFL85N Dimension data sheet (mm)

product-description2MFL85N metal bellow seal, water pump shaft seal, mechanical pump seal


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