Materials for the BSA6T and BSA64T Pipeline ancillaries Bellows sealed stop valves
10
BSA6T
BSA64T
No. Part
Stainless steel EN 10213 1.4408 or ASTM A351 CF8M
Stainless steel EN 10213 1.4408 or ASTM A351 CF8M
1 Body
Carbon steel DN15 - DN80 DIN 117243 C22.8 Carbon steel DN100 10619+N (GSC 25N)
Stainless steel EN 10213 1.4581
2 Bonnet
Stainless steel EN 10213 1.4408 or ASTM A351 CF8M
3 Seat
DN15 (½") - DN40 (1½") DN50 (2") - DN100 (4")
Stainless steel EN 10088 1.4571
4 Disc
Stainless steel EN 100222 1.4571
5 Bellows
Stainless steel DIN 17440 1.4571
6 Stem
Stainless steel EN 10088 1.4571
7 Handwheel
Pressed steel BS 1449 CR4
8 Stem packing
Graphite
Bonnet studs
Stainless steel A4-70
9
Bonnet nuts
Stainless steel A4
10 Body/bonnet gasket
Graphite laminated with stainless steel insert
DN15 (½") - DN80 (3")
Steel M8 x 14 mm A2-70
Locking screw
11
DN100 (4")
Steel M8 x 20 mm A2-70
7.1.13
Stroke limiter for throttling versions The handwheel nut on the BSA6T and BSA64T has a threaded hole for provision of a stroke limiter. Customer to supply standard nuts and bolts as indicated in the table below.
BSAT
Size
Hexagon bolt
Stroke limiter
DN15 (½") - DN80 (3")
M8 x 50 mm
Top nut
DN100 (4")
M12 x 75 mm
10.1 16
11
TI-P137-18 CMGT Issue 15
Page 10 of 17
BSAT and BSA Bellows Sealed Stop Valves
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