Type 21 water pump shaft seal for marine industry

Short Description:

The Type W21 is made of stainless steel, it provides a service range well beyond that which is possible with comparably priced seals of other metallurgical construction. The positive static seal between the bellows and the shaft, along with the free movement of the bellows, means that there is no sliding action could lead to shaft damage by fretting. This ensures that the seal will automatically compensate for normal shaft run-out and axial movements.

Analogue for: AESSEL P04, AESSEL P04T, Burgmann MG921 / D1-G55, Flowserve 110, Hermetica M112K.5SP, John Crane 21, LIDERING LRB01, Roten 21A, Sealol 43CU short, US Seal C, Vulcan 11

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We will devote ourselves to providing our esteemed customers with the most enthusiastically thoughtful services for Type 21 water pump shaft seal for marine industry, We will offer high-quality goods and great solutions at competitive price ranges. Start benefiting from our comprehensive services by contacting us today.
We will devote ourselves to providing our esteemed customers with the most enthusiastically thoughtful services for , We now have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of “Standing in Domestic Markets, Walking into International Markets”. We sincerely hope that we could do business with customers both at home and abroad. We expect sincere cooperation and common development!

Features

• The drive band’s “dent and groove” design eliminates overstressing of the elastomer bellows to prevent bellows slip and protect the shaft and sleeve from wear
• Non-clogging, single-coil spring provides greater dependability than multiple spring designs and will not foul due to fluid contact
• Flexible elastomer bellows automatically compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances
• Self-aligning unit automatically adjusts for shaft end play and run-out
• Eliminates potential shaft fretting damage between the seal and shaft
• Positive mechanical drive protects the elastomer bellows from overstressing
• Single coil spring improves tolerance to clogging
• Simple to fit and field repairable
• Can be used with practically any type of mating ring

Operation Ranges

• Temperature: -40˚F to 400°F/-40˚C to 205°C (depending on materials used)
• Pressure: up to 150 psi(g)/11 bar(g)
• Speed: up to 2500 fpm/13 m/ s (depending on configuration and shaft size)
• This versatile seal can be used on a wide range of equipment including centrifugal, rotary and turbine pumps, compressors, mixers, blenders, chillers, agitators, and other rotary shaft equipment
• Ideal for pulp and paper, pool and spa, water, food processing, wastewater treatment, and other general applications

Recommended Application

Centrifugal Pumps
Slurry Pumps
Submersible Pumps
Mixers & Agitators
Compressors
Autoclaves
Pulpers

Combination Material

Rotary Face
Carbon graphite resin impregnated
Silicon carbide (RBSIC)
Hot-Pressing Carbon C
Stationary Seat
Aluminium oxide (Ceramic)
Silicon carbide (RBSIC)
Tungsten carbide

Auxiliary Seal
Nitrile-Butadiene-Rubber (NBR)
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
Spring
Stainless Steel (SUS304, SUS316)
Metal Parts
Stainless Steel (SUS304, SUS316)

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