Pipeline ancillaries

Air vents and air eliminators

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

© Copyright 2015

AE44 and AE44S

Automatic Air and Gas Vents

for Liquid Systems

DN15 and DN20 1

2

3

16

15 4 8

DN25

1

2 3

16 15

4

Description and available types

The AE44 and AE44S are float type automatic air and gas vents for

7.12.27

liquid systems. The body and cover are of steel and the valve cone

is available in synthetic rubber designated AE44 or in stainless steel

designated AE44S. Body and cover castings are produced by a

Sizes and pipe connections

AE44 DN15 and DN20, AE44S DN15, DN20 and DN25.

Standard flanges are EN 1092 PN40 with DIN face-to-face

dimensions. On request ASME 150, ASME 300 and JIS/KS 20

flanges with drilled and tapped bolt holes with DIN face-to-face

dimensions can be provided. The 1⁄2" tapping for the balance pipe

will normally be screwed NPT for ASME and JIS / KS flanges and

BSP for other flanges unless specified otherwise.

Pressure/temperature limits

∆PMX - Maximum differential pressures

TÜV approved foundry.

6

5

9

6

5

9

8

AE44

DN15

AE44S-21 DN15

AE44

DN20

AE44S-21 DN20

21 bar

21 bar

21 bar

21 bar

AE44S-3.5

AE44S-5.3

AE44S-7.8

AE44S-16.7

DN25

DN25 5.3 bar

DN25 7.8 bar

DN25 16.7 bar

TI-P149-08

ST Issue 7

3.5 bar

T

e

m

p

e

r

a

t

u

r

e

°

C

A - B

A - D

AE44S*

15 Support frame

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A

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TMO - AE44

Materials

No. Part

1 Body

2

Cover studs

Cover nuts

3 Cover gasket

4 Cover

5 Valve seat

6 Valve seat gasket

Material

Carbon steel

DIN 17245 GSC 25N

Chrome moly steel DIN 17240 21Cr MoV57

Chrome moly steel EN 10269 25 Cr Mo 4

Reinforced exfoliated graphite

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7 Pivot frame assy.

set screws (not shown)

B

C

D

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Pressure bar g

The product must not be used in this region.

Carbon steel

Stainless steel

Stainless steel

Stainless steel

DIN 17245 GSC 25N

BS 970 431 S29

BS 1449 304 S11

BS 4183 18/8

BS 1449 304 S16

AISI 440B

BS 1449 304 S16

BS 1449 304 S16

ASME 150 A - C JIS / KS 20

Body design conditions

PN40, ASME 300

PN40

40 bar g

400°C

TMO - Maximum operating temperature AE44 200°C AE44S 400°C

16 Pivot frame

PMA - Maximum allowable pressure

TMA - Maximum allowable temperature

17 Pivot (not shown)

*Note: The valve cone AE44S is permanently attached to the ball

Designed for a maximum

cold hydraulic test pressure of:

30 bar g

49 bar g

ASME 150

JIS/KS 20

PN40/ASME 300 60 bar g

Certification

The automatic air and gas vent in its complete operational form

must not be subjected to a pressure greater than 48 bar g otherwise

damage to the mechanism may result.

8 Ball float and lever

9 Valve cone

AE44

Stainless steel

Viton

Stainless steel

Stainless steel

Stainless steel

Stainless steel

This product is available with a Manufacturer's Typical Test Report

for the body and cap as standard and certification to EN 10204 3.1

if specified at time of ordering.

float and lever.