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ANSI / ASME B73.1 M... Cartridges







 Type 323 ANSI
  • O-ring design
  • Single mechanical seal
  • Big bore seal chamber
  • 1/4" NPT barrier fluid connections (adjustable)
Convincing Arguments!

ANSI / ASME B73.1 M ... divides seal chambers into 2 categories. On the one hand an accordingly confined stuffing box is recommended for the use of packings, on the other hand a big bore stuffing box is recommended for the use of mechanical seals.

However, there are many users who still have packings on their equipment but would like to convert to mechanical seals. For these cases DEPAC offers a standard mechanical seal Type 322, which also fits in confined stuffing boxes of 5/16"(7.94 mm).

For the large seal chambers DEPAC offers DEPAC various mechanical seal designs with O-RING, BELLOWS and ROLLED BELLOWS. Please refer to the corresponding sections.
Notes
The mechanical seal types shown here were developed specially for big bore seal chambers according to ANSI. They are also available with welded bellows and with rolled bellows.
For information about the use of cartridge mechanical seals in older pump versions and about converting from packings to mechanical seals please refer to the previously described DEPAC standard seals Type 322 and 322 Z.
Links
Dimensions Table and Drawing

<< Overview
Depac-Advantages
  • Stationary design principle
  • Cartridge mounted
  • Double balanced
    full pressure rating possible on pump side AND barrier side
  • Self-closing in case of pressure reversal
  • Double mechanical seals with tandem-active arrangement
  • Independent of the direction of shaft rotation
  • Shock and vibration-dampend faces
  • Springs outside the medium
Technical Data
RANGES OF APPLICATION
Pressure 700 mm Hg (28" HG), 28 bar (420 PSI)
Pressure table atmosphere = 0 bar (0 PSI)
Medium pressure
 Barrier pressure
28 bar (420 PSI) *
 0
28 bar (420 PSI) 28 bar (420 PSI)
0
 28 bar (420 PSI)
* Only for lubricating liquids
Temperature
 Depends on the elastomer
Speed
 35 m/sec. (7000 FPM)
   
SIZES
Dshaft
 1" ... 4"
   
MATERIALS
Metals
 DIN 1.4571 / 316 SS
Springs
 Hastelloy C
Faces
 CA, SC, SSIC, TC
O-Rings
 FPM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.
   
Alternatives
Welded bellows
 Hastelloy C, AM 350
Rolled bellows
 Hastelloy C, Incolloy
   
Other sizes, materials or design versions on request.
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