We use cookies to give you the best experience on our website. If you continue without changing your cookie settings, we assume that you consent to our use of cookies on this device. You can change your cookie settings at any time but if you do, you may lose some functionality on our website. More information can be found in our Privacy Policy.

Bellows Sealed Stop Valves


The BSA3HP is a high quality, zero emission bellows sealed stop valve in carbon steel for pressure ratings up to PN100 and ASME Class 600. The valve has been engineered to allow fast, easy maintenance to ensure minimal process down-time.

The 'clamp-in-place' design of the internal seat allows the seat to be replaced without special tools and without having to remove the valve from the line.

Technical Illustration

BSA3HP Bellows Sealed High Pressure Stop Valve

A carbon steel bodied, high pressure in-line nonthrottling stop valve with multi-ply bellows. Balanced and unbalanced options are available. These valves are rated to EN 1092 PN100 or ASME class 600 for use with both saturated and superheated steam applications and a range of other industrial gases and fluids.

Technical Information

Typical Installation

A typical in-line desuperheater installation. A typical desuperheater installation will require isolation valves for both the steam and cooling water pipelines. The BSA3HP is the ideal solution for use on ASME Class 600 rated desuperheater packages.

Technical Documentation



reference number



Download PDF

Installation Documentation



reference number



Download PDF

Contact us to find out more

We'll help find the right solution for you

(60) 3 556 996 50

Talk to your local team

Contact us

We'll get back to you shortly

Your closest Spirax Sarco is

Spirax Sarco

This region has not yet joined our new website. You will now continue to the existing site for Spirax Sarco