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.
Characteristics
- Oil & Fuel Resistant Elastomer Hose.
- Fitted with Galvanised Steel Wire Braiding.
- Inner Core Polymer Basis is HNBR.
- Highly Resistant to High Temperatures.
- Available for Next Day Delivery.
Data Sheet
HNBR-machine hose (with braiding)
Product groups: MAS-HNBR (S13 …, SL17 …)
Description
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.
Properties
| Shore hardness A (Inner core) | 68 ±5°C |
| Temperature resistance | 135°C* |
| Low-temperature flexibility | -40°C |
| Pressure resistance (static) | 20 bar |
| Pressure resistance (dynamic) | 10 bar |
| Minimum bursting pressure | 40 bar |
| Ozone resistance | Good |
*(for a short time up to: 150°C)
Coloured identification: yellow tracer threads (2 x 2, crossed)
Resistances
| Biodiesel | ++ |
| Fuel oil (L, EL) | ++ |
| Diesel fuel | ++ |
| Kerosene | ++ |
| 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.).