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

We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for MFL85N metal bellow mechanical seal for marine industry, We have now much more than 20 years experience with this industry, and our profits are perfectly experienced. We can easily supply you with the most specialist solutions to meet your products’ needs. Any troubles, appear to us!
We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for , Our company offers the full range from pre-sales to after-sales service, from product development to audit the use of maintenance, based on strong technical strength, superior product performance, reasonable prices and perfect service, we’ll continue to develop, to deliver the high-quality goods and services, and promote lasting cooperation with our customers, common development and create a better future.

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 mechanical seal, water pump shaft seal, mechanical pump seal


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