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 Spirax SafeBlocTM is a double isolation solution, with a unique space-saving design, offering reduced installation time and fewer leak paths.

Faster and easier to install than a traditional double block and bleed assembly, the Spirax SafeblocTM has an innovative design which incorporates two bellows sealed isolation valves and a bleed port in one compact assembly.

Easy to use and commission, the Spirax SafeblocTM can be installed without pipework modifications, into the space left by an existing single isolation valve.

Technical Illustration

DBB3 Double Block and Bleed Bellows Sealed Stop Valve

The Spirax SafeBlocTM offers double isolation in the space of one valve, quick and easy installation and zero leakage.

Technical Information

Typical Installation

Technical Documentation



reference number



Download PDF

Installation Documentation

document language reference number download
Spirax SafeBloc DBB3 Double Block and Bleed Bellows Sealed Stop Valve English IM-P184-09 Download PDF
DCV 7 och DCV 8 backventiler Finnish IM-P601-02 Download PDF

Contact us to find out more

We'll help find the right solution for you

+358 (0)9 4136 1611

Talk to your local team

Ota yhteyttä

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