Original
By certification 
Features
Rubber bellows mechanical seal
Unbalanced
Single spring
Independent of direction of rotation
Stationary design
Advantages
Stationary mechanical seal in inch dimensions. Spread throughout the world, this type of mechanical seal has reached an unsurpassed quality level. The BT-A2 features all carbon or high quality resin impregnated carbon, aluminium oxide 96 %, is stationary and the rubber bellows are glued on collar. Static air pressure test to 100 % production. Excellent solution for swimming pool pumps.
Operating range
Shaft diameter: d1 = 1/2", 5/8", 3/4"
Pressure: p1* = 4 bar (58 PSI)
Temperature:
t* = -20°C … +90°C (-4°F … +194°F)
Sliding velocity: vg = 10 m/s (33 ft/s)
* Dependent on medium, size and materials
Materials
Seal face: Carbon graphite resin impregnated (B), Carbon graphite, full carbon (B3)
Seat: Aluminium oxide (V1),
Silicon carbide (Q1)
Elastomers: NBR (P), EPDM (E), FKM (V)
Metal parts: CrNi steel (F), CrNiMo steel (G)
Recommended applications
Pool and spa applications
Household appliances
Domestic and garden pumps
Clean water pumps
Swimming pool pumps
Whirlpool pumps
Service
Provide special design
According to the requirements and conditions for the custom processing
Dimensions BT-A2 in inch/mm | ||||||||
d1 |
d1 |
d3 |
d4 |
d7 |
I3 |
tol |
I4 |
I6 |
0.500" |
12.7 |
28.55 |
35 |
25.4 |
5.2 |
0.5 |
8 |
6 |
0.625" |
15.88 |
36.45 |
41 |
31.75 |
6.8 |
0.5 |
10.3 |
8.5 |
0.750" |
19.05 |
40 |
44 |
34.95 |
6.5 |
0.5 |
10.3 |
8 |
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