Type 3 Mechanical Seal

Mechanical Seals
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Type 3 Mechanical Seal

Constructive characteristics

✓ Component
✓ Unbalanced
✓ Secundary seals in o´ring
✓ Single spring
✓ Dependent on direction of rotation

  

 

 

 

 

Type 3 Mechanical Seal

Operational Conditions

Shaft Diameters  (mm) (Inch)
6,00    ~    85,00 0,250"    ~    3,375"

 

Temperature (Celsius degree) (Fahrenheit)
- 20,00    ~    180,00 - 4,00    ~    356,00

 

Pressure Maximum (BAR) Maximum (PSI)
10,00 145,00

 

Maximum sliding velocity (Vg)
Seal face Stationary Seat Vg (m/s) Vg (fp/s)
A Q1 20 65,6
B Q1 20 65,6
A Q2 20 65,6
B Q2 20 65,6
B S 15 49,2
Q1 Q1 15 49,2
Q2 Q2 15 49,2
Q1 U2 15 49,2
Q2 U2 15 49,2
U2 U2 15 49,2

 

 

Type 3 Mechanical Seal

Materials

Seal face material (DIN 12756)
A Carbon, metal-impregnated
B Carbon, resin-impregnated
Q1 SiC, silicon carbide, sintered pressureless
Q2 SiC-Si, reaction bonded
U2 Tungsten carbides, Ni-bonded
S Special cast CrNiMo-Steel

 

Stationary seat material (DIN 12756)
A Carbon, metal-impregnated
B Carbon, resin-impregnated
Q1 SiC, silicon carbide, sintered pressureless
Q2 SiC-Si, reaction bonded
U2 Tungsten carbides, Ni-bonded

 

Secundary seals (DIN 12756)
V        Fluoro rubber (FPM)
E    Ethylene propylene rubber (EPPM)
P Nitrile rubber (NBR)
K Perfluorocarbon rubber
X Other elastomers

 

Springs (DIN 12756)
F      CrNi steel    
G             CrNiMo steel          

 

Metal Parts (DIN 12756)
F      CrNi steel    
G             CrNiMo steel         
T Other Metals

 

Type 3 Mechanical Seal

Dimensional

Type 3 Mechanical Seal

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