pump mechanical seal replace John crane Type 21

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  • pump mechanical seal replace John crane Type 21
  • pump mechanical seal replace John crane Type 21
  • pump mechanical seal replace John crane Type 21
  • pump mechanical seal replace John crane Type 21

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


Product Detail

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Our commission is to provide our end users and clientele with best high quality and competitive portable digital merchandise for pump mechanical seal replace John crane Type 21, We will keep working hard and as we try our best to supply the best quality products, most competitive price and excellent service to every customer. Your satisfaction, our glory!!!
Our commission is to provide our end users and clientele with best high quality and competitive portable digital merchandise for Mechanical Pump Seal, Pump Shaft Seal, Type 21 Mechanical Seal, water pump mechanical seal, Our solutions are very popular in the word, like South American, Africa, Asia and so on. Companies to “create first-class products” as the goal, and strive to offer customers with high quality goods, supply high-quality after-sales service and technical support, and customer mutual benefit, create a better career and future!

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)

product-description1

Type W21 DIMENSION DATA SHEET (INCHES)

product-description2pump mechanical seal Type 21 for water pump

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