Description of Stop Valves BSA2T
A range of sealed, in-line stop valves having twin ply bellows as standard throughout the range. These valves have been designed for use on steam, gas, liquid, condensate and water systems.
BSA2T Stop Valves flow data
Materials for the BSA2T
1 Body：SG iron EN-GJS-400-18-LT
2 Bonnet：SG iron EN-GJS-400-18-LT
3 Seat：Stainless steel AISI 420
4 Disc metal：Stainless steel DIN 17440 X30 Cr13
5 Bellows：Stainless steel WS 1.4571 EN10028-7 X6 CrNiMTi 17-12-2
6 Stem：Stainless steel AISI 420
7 Handwheel： Pressed steel BS 1449 CR4
8 Stem packing ：Graphite
9 Bonnet nuts ：Steel DIN 17420 Ck 35
10 Body/bonnet gasket ：Graphite laminated with stainless steel insert
11 Locking screw ：DN15 - DN80 Steel M8 x 14 mm BS 3692 Gr. 8.8 DN100 - DN150 Steel M8 x 20 mm BS 3692 Gr. 8.8 DN200 - DN250 Steel M12 x 20 mm BS 3692 Gr. 8.8
12 'D' washer： Mild steel
13 Circlip ：Mild steel
14 Protective cap： Plastic
15 Top nut ：Steel
How to order
Example: 1 off DN25 Spirax Sarco type BSA2T bellows sealed stop valve, flanged PN16 or PN25.
Note: Should the differential pressure exceed those listed against the respective sizes in the table below, then please ensure balancing discs are specified for use in the valves (see illustration overleaf).
Certification of Stop Valves BSA2T
The BSA2, BSA2T, BSA3, BSA3T, BSA6T and BSA64T is available with certification to EN 10204 3.1.
Note: All certification/inspection requirements must be stated at the time of order placement.
