Description
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.
Sizes and pipe connections
DN15, DN20, DN25, DN40, DN50, DN65, DN80 and DN100. | ||
Flanged EN 1092 PN40 or ANSI B 16.5 Class 300. | ||
Face-to-face dimensions conform to BS EN 558:2008. |
Pressure/temperature limits (ISO 6552) PN40
Body design conditions | PN40 | |
PMA Maximum allowable pressure | 40 bar g @ 0 °C | |
TMA Maximum allowable temperature | 400 °C @ 24 bar g | |
Minimum allowable temperature | -10 °C | |
PMO Maximum operating pressure for saturated steam service | 30.4 bar g | |
TMO Maximum operating temperature | 400 °C @ 24 bar g | |
Minimum operating temperature (Note: For lower operating temperatures consult Spirax Sarco) | -10 °C | |
Designed for a maximum cold hydraulic test pressure of: | 60 bar g |
ANSI 300
Body design conditions | ANSI 300 | |
PMA Maximum allowable pressure | 51 bar g @ 37.7 °C | |
TMA Maximum allowable temperature | 425 °C @ 28 bar g | |
Minimum allowable temperature | -29 °C | |
PMO Maximum operating pressure for saturated steam service | 41.6 bar g | |
TMO Maximum operating temperature | 425 °C @ 28 bar g | |
Minimum operating temperature (Note: For lower operating temperatures consult Spirax Sarco) | -29 °C | |
Designed for a maximum cold hydraulic test pressure of: | 77 bar g |
Typical installation
DBB3
Double Block and Bleed Bellows Sealed Stop Valve
PHONE: 0812-3340-4116WHATSAPP: 0812-3340-4116
Spirax Sarco – steam product solution
-
- HV3 Stop Valve
- A3S and A3SS Bellows Sealed Stop Valve
- BSA3BD Bellows Sealed Stop Valve Spirax Sarco
- BSA3HP Bellows Sealed High Pressure Stop Valve Spirax Sarco
- DBB3 Double Block and Bleed Bellows Sealed Stop Valve
- BSAT and BSA Bellows Sealed Stop Valves
- M70i and M80i steam specialties Sanitary ball valves for high purity applications