Pусский
Suggested operating limits
Temperature: -20 ～ 120℃
Speed: ≤15m/s
Pressure≤1.0Mpa
Combined material
Rotary face:Carbon/Sic/TC
Stat Ring: Ceramic/Sic/TC
Seat Type:Standard AS-S24,Alternative AS-S20/S60.
Features
⑴Compact Single spring, rubber diaphragm seal
⑵Boot mounted Type 24 stationary as standard
⑶Designed to comply with DIN24960 (EN12756)
⑷Mechanical seal could be interchangeable with John crane, Burgmann, Aes, Vulcan, Roten seals etc.
⑸It is widely used and highly reliable in food, drink, petroleum, chemistry, refinery, paper making, pharmacy, power and auto industry etc.
Background Knowledge：
Allowable value of shaft radial play:
Excessive shaft radial play will cause the jittering or deviation of the shaft,thus increase the seal contact surface, reduce lubricating film, and accelerate wear, which is detrimental to the sealing performance and service life of the mechanical seal. Therefore, JB4 127-85 stipulates：
| Allowable value of radial play of shaft（or sleeve）where mechanical seal is installed | |
| Outdiameter of shaft（or sleeve）（mm） | value of radial play |
| 10-50 | 0.04 |
| 50-120 | 0.06 |
shaft radial play is not only related to shaft diameter, but also related to shaft speed of the mechanical seal.
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