Pipeline ancillaries
Bellows sealed stop valves
Materials for the BSA6T and BSA64T
No. Part
1 Body
2 Bonnet
3 Seat
6 Stem
7 Handwheel
8 Stem packing
BSA6T
Stainless steel
EN 10213 1.4408 or ASTM A351 CF8M
Stainless stel
EN 10213 1.4581
BSA64T
Stainless steel
EN 10213 1.4408 or ASTM A351 CF8M
Carbon steel DN15 - DN80 DIN 117243 C22.8
Carbon steel DN100 10619+N (GSC 25N)
DN15 - DN40
DN50 - DN100
5 Bellows
Stainless steel EN 10213 1.4408 or ASTM A351 CF8M
Stainless steel EN 10088 1.4571
Stainless steel EN 100222 1.4571
Stainless steel DIN 17440 1.4571
Stainless steel EN 10088 1.4571
Pressed steel BS 1449 CR4
Graphite
Stainless steel A4-70
Stainless steel A4
Graphite laminated with stainless steel insert
4 Disc
Bonnet studs
9
Locking
DN15 - DN80
11
screw
DN100 - DN150
DN200 - DN250
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.
Bonnet nuts
10 Body / bonnet gasket
Size
DN15 - DN80
DN100 - DN150
DN200 - DN250
Stroke
limiter
Handwheel
nut
Hexagon bolt
M8 x 50 mm
M12 x 75 mm
M12 x 100 mm
BSAT
11
Protection
cap
7
BSAT
9
2
5
1
7.1.10
TI-P137-18 ST Issue 6
BSAT and BSA Bellows Sealed Stop Valves
Page 7 of 10
Steel M8 x 14 mm A2-70
Steel M8
Steel M12
x 20 mm
x 20 mm
A2-70
A2-70
3
4
6
8
10
