Pressure Vacuum Valve 

1. Summary

  • The product is used for N2 Gas tight for marine ballast water treatment system to replace the normal air pipe head.
  • Opening pressure 200-300 mm WC
  • Opening vacuum 200-300 mm WC.

pressure vacuum valve


2. Material:
Item Part Name Material
1 Body Steel Q235-B
2 Seat Neoprene
3 Lower Disc SUS 304
4 Seat Neoprene
5 Upper Disc SUS 304
6 Float Ball PE
7 Screen SUS 304
8 Side Cover Steel Q235-B

pressure vacuum valve


3. Dimensions:
Size H B L
DN80 494 206 242
DN100 590 232 264
DN125 640 274 306
DN150 721 346 370
DN200 941 414 420
DN250 982 472 540
DN300 1144 546 652
DN350 1240 648 728
DN400 1410 730 810
DN450 1637 808 938

4. Technical requirement:

  • The body and side cover shall be Hot dip galvanized and zinc thickness 70-100µm. The inner surface of the body shall be additionally coated with epoxy paint.
  • Opening pressures: Lower Disc Pressure: 200-300 mm WC, Upper Disc Vacuum: 200-300 mm WC.
  • Protection screen is 30 mesh.
  • Flange standard: According to the user’s requirement

 

 

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