Depac
Depac - Model Types 321, 322 and 323 -Mechanical Seal
FromDepac
The types 321, 322 and 323 are stationary, tandem-active double cartridge mechanical seals with integrated barrier fluid pumping assistance. The double pressure balancing of the seal faces on the product side ensures one the one hand that the seal faces do not open in case of pressure reversal. and on the other that the balancing for reducing the friction values is present under all pressure conditions. The respective product versions differ by their seal chamber cross-sections.
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- 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.
- Other sizes, materials or design variations upon request.
* Maximum temperature / pressure / speed indicates operating extremes independently and does not imply the seal will function at these extremes at the same time. Contact DEPAC if in doubt.