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 support our customers with ideal premium quality products and solutions and superior level assistance. Becoming the specialist manufacturer in this sector, now we have received rich practical experience in producing and managing for MFL85N metal bellow mechanical seal for marine industry, The main goal of our company is to live a satisfactory memory to all the customers, and establish a long term business relationship with buyers and users all over the world.
We support our customers with ideal premium quality products and solutions and superior level assistance. Becoming the specialist manufacturer in this sector, now we have received rich practical experience in producing and managing for , Our company regards “reasonable prices, efficient production time and good after-sales service” as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.

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 for marine industry


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