Pipeline ancillaries Ball valves
10
Spare parts The spare parts available are detailed below. No other parts are supplied as spares. Available spares
7, 8, 11, 12, 16
'O' rings set (available either in NBR, Viton or Silicon)
13, 14, 15
BVA300 series maintenance kit
Pinion washers
5, 6, 10, 17, 18
Others
How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the nomenclature of the pneumatic actuator that they are intended for. Note: all the spares mentioned above are sold together in one spare part kit. Example: 1 - BVA300 series maintenance kit with 'O' rings in NBR for a Spirax Sarco BVA320S/08 pneumatic actuator.
11
8 17
6
22
15 14 13 21
12
1
5
16 10
Exploded view of the spring set
Normally open configuration shown
3 (not an available spare)
20
4
11
17 8
6
18 7
Spring quantity selection According to the available air pressure, the BVA has different spring configurations. For more details, see the Installation and Maintenance Instructions IM-P372-24.
10.3 252
Springs
BVA
S/4
S/6
S/8
S/10
S/12
S/14
310
•
•
•
315 - 365
•
•
•
•
Example: BVA325S/10 has 10 springs.
TI-P372-23 CTLS Issue 15
Page 4 of 15
BVA300 Series Pneumatic Actuators for use with Spirax Sarco Ball Valves
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