HomeProductsValves (Cast & Ductile Iron)AUTOMATIC AIR VENT (CAAV-DAAV)

AUTOMATIC AIR VENT (CAAV-DAAV)

Specification

THREADED TO BS 21 (ISO 7) / ASME B1.20.1

FLANGE STANDARD

PN16: CAAV-B

PN25: DAAV-B25

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For a comprehensive overview of the product specifications mentioned above, feel free to download the product catalog.

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Material

Part Material BS
Body Cast Iron 1452 Gr. 220 / 2789 Gr. 420/12
Cover Cast Iron 1452 Gr. 220 / 2789 Gr. 420/12
Level Stainless Steel 304 970 304S15
Seat Stainless Steel 304 970 304S15
Float Stainless Steel 304 970 304S15
Float Arm Stainless Steel 304 970 304S15
Orifice Button EPDM / Viton  

Pressure / Temperature Ratings

Model CAAV-B Cast Iron DAAV-B25 Ductile Iron
Working Pressure 16 bar 25 bar
Testing Pressure 24 bar 37.5 bar
Working Temperature -10 °C ~ 120 °C
Suitable Media Water

Dimensions

Size (mm) Inlet (mm) Outlet (mm) Orifice (mm)
15 15 15 1.6
20 20 15 1.6
25 25 15 1.6
  1. Air vent shall be installed vertically with allowance of within 5° from the horizontal pipe line.
  2. Install a gate valve or ball valve at the inlet for maintenance purposes.
  3. A copper tube to be connected from the outlet of the air vent up to drainage ditch, to prevent any leakage of the water, if any.
  4. Insulate the air vent and gate valve / ball valve to prevent condensation.

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