Logo CHETRA
Mechanical seals according to desing

Standard cartridge mechanical seals - multiple-/ double-acting
  
  
809 
  • double-acting
  • preassembled cartridge mechanical seal, ready for operation
  • double pressure-balanced
  • independent of direction of rotation
  • multiple springs (protected)
  • stationary design
  • long-hole fixing
Dimensions: 30-100 mm
(also in inches)
pmax: Vacuum up to 30 bar
tmax:  260C
(acc. to secondary seal)
vmax: 25 m/s
 
  Operation: API plan 52 or 53
(i.e. as tandem mechanical seal with pressureless quench or as double mechanical seal with higher barrier fluid pressure).

Universal double cartridge mechanical seal for technically demanding applications.

Complete mechanical seal with sleeve and cover with connections for barrier pressure-/ barrier fluid pressure lines.

100% ventilation of stuffing box.

Assembly aids fix mechanical seal in position ready for installation.

Self-aligning seal faces in stationary design optimize mechanical seal to increase 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.
     

   
807
  • double-acting
  • preassembled cartridge mechanical seal, ready for operation
  • double pressure-balanced
  • independent of direction of rotation
  • multiple springs (protected)
  • stationary design
  • long-hole fixing
 
Dimensions: 25-100 mm
(also in inches)
pmax: Full vacuum up to 35 bar
tmax: 280C
(acc. to secondary seal)
vmax: 25 m/s
  Operation: API plan 52 or 53
(i.e. as tandem mechanical seal with pressureless quench or as double mechanical seal with higher barrier fluid pressure).

Guided circulation for optimal heat dissipation; robust - excl. solid seal rings/ stationary seats in "self-aligning" seal faces and stationary design optimize mechanical seal to reach long service life.

High-quality standardized double cartridge mechanical seal with hi-tech construction features for technically demanding applications.

Assembly aids fix mechanical seal in position ready for installation.

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

As 807S in special designs, 807AS pipeline pumps: mechanical seal for finished products in petrochemistry and refineries.
     

   
509
  • double-acting
  • preassembled cartridge mechanical seal, ready for operation
  • short-designed mechanical seal for agitators
  • double pressure-balanced
  • independent of direction of rotation
  • stationary design
  • multiple springs (protected)
  • long-hole fixing
 
Dimensions: 70-120 mm
pmax: Vacuum up to 30 bar
t: - 25C...205C
vmax: 25 m/s
 

Operation: API plan 52 or 53
(i.e. as tandem mechanical seal with pressureless quench or as double mechanical seal with higher barrier fluid pressure).

Universal cartridge mechanical seal for agitators; especially for retrofitting of packings.

100% self-acting ventilation of stuffing box.

Mechanical seal with built-in mechanical "compensation of tolerances" of endplay and shaft movement (axially and radially up to +-3 mm total.

Assembly aids fix mechanical seal in position ready for installation.

Connections for barrier pressure-/ barrier fluid pressure lines in cover.

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

     

back