Type 322
DEPAC seal type 322 is a tandem – active, stationary design cartridge mounted double mechanical seal with an integrated barrier fluid pumping device. This seal type is double pressure balanced which guarantees lower face pressure, lower face friction and therefore less wear on the face pair. Additionally full pressure rating is possible on pump and barrier fluid side and the seal faces are self-closing in case of pressure reversal
Item Description
- Self-closing in case of pressure reversal
- Venting option
- Cartridge-mounted
- Double balanced
- Tandem active
- Independent of the direction of rotation
- Multiple springs made of Hastelloy C
- Springs outside the medium – no blockage of the springs
- Vibration-dampend stationary face support
| Range of application* | |
| Pressure | 700 mm Hg – 28 bar |
| Temp. | Elastomer dependent |
| Sliding velocity | up to 35 m/s |
| Shaft movements | axial ≤ Ø 22 +/- 0,5 mm | ≥ Ø 24 +/- 1,0 mm |
| radial ≤ Ø 22 +/- 0,4 mm | ≥ Ø 24 +/- 0,5 mm | |
| Sizes | |
| Dshaft | 16 – 160 mm |
| 5/8“ – 6 ¼“ | |
| Special sizes available on request | |
| Materials | |
| Metals | DIN 1.4571/Hast. C |
| Springs | Hast. C |
| Faces | CA, SC, SSIC, TC |
| O-Rings | FKM, EPDM, PTFE, FEP Umm., Chemraz, Kalrez, Aflas, etc. |
