john crane mechanical seal type 21 is designed as single spring, unbalanced.
type 21 description
- Pressure: ≤0.8 mpa
- Speed: ≤10m/s
- Temp: -20C°~150 C°
- Media: Water, Oil, ordinary corrosive medium
- Stationary Ring: Ceramic/Sic/TC
- Rotary Ring: Carbon/Sic/TC
- Secondary Seal: NBR/EPDM/Viton
- Metal: ss304, ss316
john crane mechanical seal type 21 catalog pdf
Here is some way for john crane type 21 seal installation
The successful operation and life of the seal depend on the acceptable equipment.
Size, alignment, and completion. Before installing the seal,
Check the sealed enclosure and the following situations.
The shaft, especially (in marked position), is in the sealed position. Common equipment
Measuring these characteristics will include micrometers and dial indicators.
Similar mechanical seal recommend type 1
Find type 21 distributor
Zigoong Ke Yu Seal Science And Technology Co.,Ltd is one of biggest manufacture, distributor of china. When you need mechanical seal, please contact us.
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