Flanged fire damper FIREBAG IVAR.TASF DN 65 – flanges with 4 holes, for gas distribution
Code: TASF06500Product detailed description
Gas Shutoff in Case of Fire
IVAR.TASF is a safety valve with flanged connection, which is inserted into the gas line before the protected area or appliance. Inside it has a thermal fuse FIREBAG®: the closing element is held open by a metal with a low melting point. When the ambient temperature rises to +100 °C (tolerance −5 K), the metal melts and a stainless steel spring fires the closure into the seat inside the valve. This completely and irreversibly stops the gas flow – the valve cannot be opened again. It operates independently, without connection to a flame or temperature detection system.
Size DN 65
- flanges according to DIN EN 1092-1, 4 holes Ø 18 mm on pitch circle Ø 145 mm
- flange outer diameter 185 mm, construction length 125 mm
- galvanized steel, max. operating pressure PN 5, operating temperature -20 to +80 °C
- thermal and time resistance +650 °C / 30 minutes according to GT5 DIN 3586
- for gases according to STN EN 437 and DVGW G260 – methane, butane, propane
- in accordance with DIN 3586 and Regulation (EU) 2016/426
Installation and Inspection
The valve is installed into horizontal and vertical piping so that the arrow on the body points in the direction of gas flow. The connection is made without bolting, using a sealing suitable for the given pressure, temperature and medium; the pipe expansion must be compensated by an expansion joint. The area in front of the valve must remain free to allow heat to reach it in case of fire, the valve must not be painted or insulated and the installation location is marked with a warning label. It is not installed outdoors where a temperature increase to 100 °C in case of fire is not guaranteed. Design, installation and testing of the gas line belong only to a qualified person with a valid authorization.
Technical Parameters
| Code | TASF06500 |
| Manufacturer | IVAR |
| Type | IVAR.TASF |
| Rated Diameter | DN 65 |
| Flanges | DIN EN 1092-1, 4 holes Ø 18 mm |
| Center distance of holes D3 | 145 mm |
| Flange outer diameter D1 | 185 mm |
| Construction length L | 125 mm |
| Max. operating pressure | PN 5 |
| Operating temperature | -20 to +80 °C |
| Activation temperature FIREBAG® | +100 °C (−5 K) |
| Fire resistance | +650 °C / 30 min (GT5 DIN 3586) |
| Material | galvanized steel |
| Gases | methane, butane, propane (STN EN 437, DVGW G260) |
Frequently Asked Questions
Can the valve be opened again after activation?
No. After exceeding the activation temperature, the spring permanently pushes the closure into the seat and the valve cannot be opened again. Therefore, it cannot be functionally tested without destruction – only visual inspection is possible.
At what temperature does FIREBAG shut off the gas supply?
At ambient temperature +100 °C with a tolerance of −5 K, i.e. approximately from 95 °C. The closed valve then withstands a temperature of +650 °C for 30 minutes.
Can the valve be installed in a vertical pipe?
Yes, it can be installed horizontally and vertically. The direction of gas flow according to the arrow on the body must be observed and the area in front of the valve must remain free.
How often is the valve inspected?
If it is assessed as a fire safety device, once a year. It is visually checked that it is not covered, painted or insulated, the housing is undamaged, the flange connection is tight and the warning label is in place.
Additional parameters
| Category: | IVAR.TASK, IVAR.TASF, IVAR.G4 - fire safety fittings |
|---|---|
| Warranty: | 2 years |
| Availability: | In stock or at supplier |
| Code: | TASF06500 |
| Manufacturer: | IVAR |
| Type: | IVAR.TASF |
| Nominal size: | DN 65 |
| Flanges: | DIN EN 1092-1, 4 holes Ø 18 mm |
| Bolt circle D3: | 145 mm |
| Flange outside diameter D1: | 185 mm |
| Face-to-face length L: | 125 mm |
| Max. operating pressure: | PN 5 |
| Operating temperature: | -20 to +80 °C |
| FIREBAG® trip temperature: | +100 °C (−5 K) |
| Fire resistance: | +650 °C / 30 min (GT5 DIN 3586) |
| Material: | galvanised steel |
| Gases: | methane, butane, propane (EN 437, DVGW G260) |
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IVAR designs, develops and manufactures highly energy-efficient heating and plumbing systems. We have over 10,000 catalogue items - mass-produced products and unique items - in addition to customised systems and combinations of complex products. And it’s all “Made in Italy”.
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IVAR has been producing heating and plumbing system components since 1985: valves for heating bodies, direct heat metering modules, heat cost allocators, pipes and fittings, substations for heating systems, distribution manifolds, radiant panel systems, and components for solar and geothermal systems. And it’s all “Made in Italy”.
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