1A Mechanical Seal

Benefits of an A1 Mechanical Seal

Self-aligning: Automatic adjustment compensates for abnormal shaft end play, run out, primary sealing wear and machinery tolerances leading to  improved service life.
Mechanical Drive: The drive ring’s notch design eliminates extra stress of the bellows
Non-clogging Single Coil Spring: Provides greater dependability than multiple designs.
Special Balancing: For higher pressure applications, greater operating speeds & lower wear.

Operating Conditions for the A1 Mechanical Seal

Temp: -40ºC to 205ºC
Pressure: 28 bar
Speed: 13 m/s

picture mechanical seal
SIZE d D D1 (A) D1 (B) L1 L2
1″ 25,4 38,1 40,5 41,28 10,3 39,67
1 1/8″ 28,58 41,28 47,6 44,44 12,0 41,28
1 1/4″ 31,75 46,03 50,8 47,63 12,0 41,28
1 3/8″ 34,93 47,63 53,98 50,8 120 42,85
1 1/2″ 38,1 50,8 57,15 53,98 12,0 4285
1 5/8″ 41,28 57,15 60,35 60,33 12,0 50,8
1 3/4″ 44,45 60,33 63,5 63,5 12,0 50,8
1 7/8″ 47,63 63,5 66,7 66,68 12,0 53,98
2″ 50,8 66,68 68,95 69,85 12,0 53,98
2 1/8″ 53,98 71,43 73,05 76,2 13,5 60,33
2 1/4″ 57,15 74,6 76,2 79,38 13,5 60,33
2 3/8″ 60,33 77,78 79,4 82,55 13,5 63,5
2 1/2″ 63,5 80,95 82,55 85,73 13,5 63,5
2 5/8″ 66,68 85,73 92,1 85,73 15,9 69,85
2 3/4″ 69,85 88,9 95,25 88,9 15,9 69,85
2 7/8″ 73,03 92,08 98,45 95,25 15,9 73,03
3″ 76,2 95,25 101,65 98,43 15,9 73,03