Pipeline ancillaries Bellows sealed stop valves
10
How to order Example: 1 off DN25 Spirax Sarco type BSA2T bellows sealed stop valve, flanged PN16 or PN25.
DN125 (5")
DN150 (6")
DN200 (8")
DN250 (10")
Size
Note: Should the differential pressure exceed those listed against the respective sizes in the table opposite, then please ensure balancing discs are specified for use in the valves (see page 9).
25 (363)
17 (247)
10 (145)
6 (87)
ΔP in bar (psi)
Spare parts The spare parts are shown in heavy outline. Parts drawn in a grey line are not supplied as spares. Available spares Body/bonnet gasket and stem packing
7
10, 8 (2 off)
5, 6, 8, 10
Stem and bellows assembly (state if BSAT or BSA)
Disc (and optional disc where fitted) - state full description of the valve
4, 8, 10
7
Handwheel
How to order spares Please note: for customer convenience spares are supplied in kits to ensure all the appropriate replacement parts are supplied to carry out a specific maintenance task. e.g. when a stem/bellows assembly is ordered, parts (10), (8) and (6, 5) will be included in the kit. Always order spares by using the description given in 'Available spares' and state the size and type of stop valve. Example: 1 - Body/bonnet gasket and stem packing for a DN15 Spirax Sarco BSA2T PN16 bellows sealed stop valve.
8
6
10
5
10.1 23
10
4
DN15 - DN32 (½" - 1¼") shown
TI-P137-18 CMGT Issue 15
Page 17 of 17
BSAT and BSA Bellows Sealed Stop Valves
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