Product Handbook 2026 - Volume 2

Pipeline ancillaries Air vents and air eliminators

10

Capacities

30 20

10

5 4 3 2

1

0.5 0.4 0.3 0.2

0.1

0.1

0.2

0.3

0.5

1

2

3 4 5

10

21

Differential pressure bar (x 100 = kPa)

Hot water capacity Free air discharge capacity If the temperature of the air differs from 15 °C, the discharge capacity from the graph can be corrected by multiplying it by the following equation:

289 273 + T (T is the actual temperature) It may be assumed that the temperature of the air is the same as the temperature of the water.

Dimensions/weights (approximate) in mm and kg

DN15 and DN20

DN25

Withdrawal distance

Withdrawal distance

D

E

E

D

C

C

10.11 56

A

A

B

B

F

F

Size

A

B

C

D

E

F

Weight

DN15

150

80

80

215

120

155

10.8

DN20

150

80

80

225

120

165

10.8

DN25

160

115

85

282

170

215

15.0

TI-P149-08 CMGT Issue 9

Page 4 of 6

AE44 and AE44S Automatic Air and Gas Vents for Liquid Systems

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