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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Material

PartMaterialBS
BodyCast Iron1452 Gr. 220 / 2789 Gr. 420/12
CoverCast Iron1452 Gr. 220 / 2789 Gr. 420/12
LevelStainless Steel 304970 304S15
SeatStainless Steel 304970 304S15
FloatStainless Steel 304970 304S15
Float ArmStainless Steel 304970 304S15
Orifice ButtonEPDM / Viton 

Pressure / Temperature Ratings

ModelCAAV-B Cast IronDAAV-B25 Ductile Iron
Working Pressure16 bar25 bar
Testing Pressure24 bar37.5 bar
Working Temperature-10 °C ~ 120 °C
Suitable MediaWater

Dimensions

Size (mm)Inlet (mm)Outlet (mm)Orifice (mm)
1515151.6
2020151.6
2525151.6
  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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