Bellows Sealed Stop Valves

Overblik

Spirax Sarco SafeBloc™ er en dobbeltisoleringsløsning med et unikt pladsbesparende design, der giver kortere installationstid og færre lækager.

Spirax Safebloc er hurtigere og nemmere at installere end en traditionel double block & bleed, har et innovativt design, som inkorporerer to bælgforseglede isolationsventiler og en udluftningsport i én kompakt enhed.

Spirax Safebloc™ er let at bruge og idriftsætte, og den kan installeres uden ændringer i rørsystemet i det rum, der efterlades af en eksisterende enkelt isolationsventil.

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.

Tech promo DBB3

Technical Information

Size 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

Teknisk information

Dokument

Spirax SafeBloc DBB3 Double Block and Bleed Bellows Sealed Stop Valve

Sprog

English

Referencenummer

TI-P184-08

Download

Download PDF

Installationsmanualer

Dokument

Spirax SafeBloc DBB3 Double Block and Bleed Bellows Sealed Stop Valve

Sprog

English

Referencenummer

IM-P184-09

Download

Download PDF

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