Product Handbook 2026 - Volume 2

Pipeline ancillaries Air vents and air eliminators

10

Pressure/temperature limits

A

TMO - AE44

C

B

D

Pressure bar g

The product must not be used in this region.

A - B ASME 150. A - C JIS/KS 20 A - D PN40, ASME 300

Body design conditions

PN40

PMA Maximum allowable pressure

40 bar g

TMA Maximum allowable temperature

400 °C

AE44

200 °C

TMO Maximum operating temperature

AE44S

400 °C

Product is safe for use under full vacuum conditions

ASME 150

30 bar g

Designed for a maximum cold hydraulic test pressure of:

JIS/KS 20

49 bar g

PN40/ASME 300

60 bar g

Note: For lower operating temperatures consult Spirax Sarco.

∆PMX - Maximum differential pressures AE44 DN15 21 bar AE44S-21 DN15 21 bar AE44 DN20 21 bar AE44S-21 DN20 21 bar AE44S-3.5 DN25 3.5 bar AE44S-5.3 DN25 5.3 bar AE44S-7.8 DN25 7.8 bar AE44S-16.7 DN25 16.7 bar

10.11 55

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.

TI-P149-08 CMGT Issue 10

Page 3 of 6

AE44 and AE44S Automatic Air and Gas Vents for Liquid Systems

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