Product Handbook 2026 - Volume 2

Pipeline ancillaries Air vents and air eliminators

10

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P149-15) supplied with the product.

How to order Example: 1 off Spirax Sarco ½" AES14 austenitic stainless steel automatic air vent having screwed BSP connections.

Spare parts The spare parts available are shown in heavy outline. Parts drawn in a grey line are not supplied as spares. Available spares

3, 5, 6, 7 (2 off) 8, 9, 12, 14, 15 3, 5, 6, 7 (2 off) 8, 9, 12, 14, 15 3, 5, 6, 7 (2 off) 8, 9, 12, 14, 15

AES14

Maintenance kit

AES14S

AES14E

3, 15, 9 *

Seal kit

(packet of 3)

* Note: One of each EPDM and Viton valve cones are supplied to fit as required. How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size and type of trap. Example: 1 - Maintenance kit for a Spirax Sarco ½" AES14 austenitic stainless steel automatic air vent.

15

3

7.11.51

*10

9

8

7

*2

6 5

12

14

Main valve assembly

10.11 68

Recommended tightening torques

or mm

Item Part

N m

2 *

Cover bolts

M10 x 30

20 - 25

5 7

Main valve seat

17 A/F

50 - 55

Main valve assembly screws

Pozidrive

M4 x 6

2.5 - 3.0

10 *

Blanking plug

17 A/F

50 - 55

* Note: Items 2 and 10 are not available as spares.

TI-P149-14 CMGT Issue 3

Page 4 of 4

AES14, AES14S and AES14E Austenitic Stainless Steel Automatic Air Vents for Liquid Systems

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