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Mechanical seals according to design

Standard cartridge mechanical seals - single-acting
       
     
204D
  • single-acting
  • preassembled cartridge mechanical seal ready for operation
  • balanced
  • independent of direction of rotation
  • multiple springs
  • long-hole fixing
 
Dimensions: 25-100 mm
(also in inches)
pmax: 18 bar
tmax:  205C
vmax: 25 m/s
 

With quench and circulation connections (without connections: style 203D); mechanical seal fits into the (packing) stuffing box compartments.

Mechanical seal for medium applications.

Mostly required materials/ mating of materials available; s. material chart.

  

  
209D
  • single-acting
  • preassembled cartridge mechanical seal ready for operation
  • balanced
  • independent of direction of rotation
  • multiple springs (protected)
  • stationary design
  • long-hole fixing
 
Dimensions: 25-100 mm
(also in inches)
pmax: 25 bar
tmax: 205C
(with Viton® o-rings)
vmax: 25 m/s
 

Universal cartridge mechanical seal for technically demanding applications - high degree of capacity for solids.

Assembly aids fix mechanical seal in position ready for installation.

Complete mechanical seal with sleeve and cover with circulation connections (quench optional).

Exclusive use of solid seal face/ stationary seat - self-aligning arrangement in stationary design ensures safety of operation and usually increases service life.

Mechanical seal is also very suitable with retrofitting of packing; usually fits into packing stuffing box compartments.

Mostly required materials/ mating of materials available; s. material chart.

 

  
207
  • single-acting
  • preassembled cartridge mechanical seal ready for operation
  • balanced
  • independent of direction of rotation
  • stationary design
  • multiple springs (protected)
  • long-hole fixing
 
Dimensions: 25-130 mm
(also in inches)
pmax: 50 bar
tmax: 280C
(acc. to secondary seal)
vmax: 35 m/s
 

Universal cartridge mechanical seal with large reserve capacity - even with difficult applications, incl. indifference to solids.

Assembly aids fix mechanical seal in position ready for installation.

Complete mechanical seal with sleeve and cover with circulation connections (quench optional).

Exclusive use of solid seal face/ stationary seat - self-aligning arrangement in stationary design ensures safety of operation and usually increases service life.

Mechanical seal fits into DIN space for installation.

Mostly required materials/ mating of materials available; s. material chart.

  

    
207A

API-design

 
  

  
201
201S
Special designs

User-specific, single-acting mechanical seal, fitted to aggregate, in stationary design, series "201/201S";
inquiries to chetra@chetra.de.

You will find an example of style 201 under "Mechanical seals after applications
- Pipeline pumps
   

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