China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS

China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS Featured Image
  • China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS
  • China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS
  • China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS
  • China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS

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Along with the "Client-Oriented" small business philosophy, a rigorous high-quality handle system, highly developed producing machines and a powerful R&D group, we always supply high-quality products and solutions, fantastic services and aggressive costs for Sealing Solution, Oil Ring Seal, Boat Shaft Seal, We are also the appointed OEM factory for several worlds' famous products brands. Welcome to contact us for further negotiation and cooperation.
China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS Detail:

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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Type W21 DIMENSION DATA SHEET (INCHES)

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China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS detail pictures

China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS detail pictures

China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS detail pictures

China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS detail pictures

Related Product Guide:
Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support for China High Quality Vacuum Pump Mechanical Seal Factory – Type W21 Single Spring Pump Mechanical Seals Replaced John Crane Mechanical Seals Type 21 – VICTOR SEALS, The product will supply to all over the world, such as: Pakistan, Sweden, Comoros, We insist on the principle of "Credit being primary, Customers being the king and Quality being the best", we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business.
    • Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
    5 Stars By Jocelyn from belarus - 2017.11.20 15:58
    In our cooperated wholesalers, this company has the best quality and reasonable price, they are our first choice.
    5 Stars By Nora from New Zealand - 2017.02.18 15:54

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