Spirax Sarco's BSA2T SGI Twin-Ply Bellows Valve is a sealed, in-line stop valve. It comes with twin-ply bellows and can be used on steam, gas, liquid, condensate and water systems. The product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC. The BSA2T valve is available with certification to EN 10204 3.1.

The Spirax Sarco bellow seal stop valve comes complete with a throttling plug and locking device, which allows manual regulation to adjust line pressure and flow. This makes it a flexible and user-friendly isolation solution that can also be used as a basic control valve or a substitute for 'bypass' lines.

- Body: SG Iron EN-GJS-400-18-LT
- Bonnet: SG Iron EN-GJS-400-18-LT
- Seat: Stainless Steel AISI 420
- Disc: Stainless Steel DIN 17440 X30 Cr13
- Insert: R-PTFE 24% carbon filled
- Bellows: Stainless Steel WS 1.4571 EN10028-7 X6 CrNiMTi 17-12-2
- Stem: Stainless Steel AISI 420
- Handwheel: Pressed Steel BS 1449 CR4
- Stem Packing: Graphite
- Minimum Operating Temperature: -10°C (Soft Seat) / -10°C (Metal Seat)
- Maximum Operating Temperature (TMO): +230°C (Soft Seat) / +350°C (Metal Seat)
- Maximum Allowable Pressure (PMA): 16 bar g (PN16) / 25 bar g (PN25)
- Maximum operating pressure for saturated steam service: 14.7 bar g (PN16) / 22.3 bar g (PN25)

The BSA2T valve is equipped with a throttling plug and locking device, facilitating manual regulation for line pressure and flow adjustments. Its versatility allows it to function as a basic control valve or a substitute for 'bypass' lines, providing users with a user-friendly isolation solution.