Bellows Sealed Stop Valves
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Overview
Our bellows sealed isolation valves are engineered to maintain plant safety and save energy by totally eliminating stem seal leaks.
Zero emissions are guaranteed which ensures our BSA valves meet the most stringent worldwide emissions legislation.
Technical Information
Sizes and pipe connection |
Pressure / temperature limits - EN 1092 and EN 12516-1 |
|
|
DN200, DN250, DN300, DN350 and DN400 |
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| EN 1092 and EN 12516-1 PN16, PN25 and PN40 | ||
Materials |
||
Part |
Material |
|
| Body | Cast Steel | 1.0619+N |
| Bonnet | Cast Steel | 1.0619+N |
| Seat | A105 and Stellite |
|
| Disc | Stainless steel |
DIN 17440 X30 Cr13 and Stellite |
| Bellows | Stainless steel |
DIN 17440 X6 Cr Ni Ti 1810 |
| Stem | Stainless steel |
AISI 420 |
| Bonnet nut | Steel |
ASTM A194 2H |
| Bonnet stud | Steel | ASTM A193 B7 |
| Body / bonnet gasket | Graphite laminated with stainless steel insert | |
| Handwheel | Carbon steel | DN200 and DN250 |
| Cast iron | DN300 to DN400 | |
| Strap | Stainless steel | ASTM A276 304 |
| Self-locking nut | Stainless steel | |
| Balance plug | Stainless steel |
DIN 17440 x 30 Cr13 and Stellite |
| Locking washer | ASTM A276 304 | |
| Stem packing | Graphite | |
Technical Documentation
Title
BSA3BD Bellows Sealed Stop Valves
language
English
reference number
TI-P184-18
Download
Installation Documentation
Title
BSA3BD Bellows Sealed Stop Valves DN200 to DN400
language
English
reference number
IM-P184-19
Download
Spirax Sarco
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