New HNBR Oil Hose
As a global market leader, Firebird is committed to developing innovative solutions to future proof home heating.
We listened to our Service Engineers – carried out research & implemented the change.
All Firebird boilers manufactured from the 1st of December, will come with the new oil hose as standard & all spare oil hoses ordered after this date will be HNBR.
HNBR-machine hose (with braiding)
Product groups: MAS-HNBR (S13 …, SL17 …)
This oil and fuel resistant flexible elastomer hose is fitted with galvanised steel wire braiding as a pressure or strength bearer. The polymer basis of the inner core is HNBR (hydrogenated butadiene acrylonitrile rubber) which is highly resistant to high temperature. Suitable for use with Biodiesel.
|Shore hardness A (Inner core)||68 ±5°C|
|Pressure resistance (static)||20 bar|
|Pressure resistance (dynamic)||10 bar|
|Minimum bursting pressure||40 bar|
*(for a short time up to: 150°C)
Coloured identification: yellow tracer threads (2 x 2, crossed)
|Fuel oil (L, EL)||++|
|Gasoline (room temperature)||+)’|
|Methanol, ethanol (room temperature)||++|
|Hydraulic oil (mineral oil basis, glycol basis)||+|
|Engine oil, Vegetable oil||++|
|Protectiv gas (CO2, argon etc.)||++|
|Air (up to 135°C)||+|
|Tap water (room temperature)||++|
|Tap water (up to 125°C)||+|
|Acids and lyes||—|
)’ the material doesn’t meet the requirements of DIN 73379 to the inner layer.
“++” = very suitable / “+” = suitable / “o” = suitable to limited extent / ”–” = not suitable
- Biodiesel above mentioned is intended as FAME according to EN 14214.
- Tests carried out with pure Biodiesel at 70°C and 100°C.
It is very difficult to predict the lifetime of an oil hose, as it is strongly depending on the operating conditions (temperature, dynamic loads/stresses, etc.).