Orifice Ring
The precisely machined ring seated under the spout that sets gob diameter and weight.
Service temperature
1500–1650 °C
Related sectors
About this product
The orifice ring is the first part changed when the production programme changes: a different bottle weight calls for a different orifice diameter. The bore and the lower edge geometry set the gob shape directly, so tolerances are tight. We hold a range of diameters in stock and machine special sizes at short notice.
Material
Zircon mullite is a mullite matrix reinforced with zircon (ZrSiO₄). In contact with molten glass it shows low wettability and sound corrosion resistance while keeping the melt clean. It is the standard choice for forehearth channel blocks, spouts, feeder expendables, vitrified supports and gob delivery blocks.
Applications
- Gob diameter setting
- Job change preparation
- Bottle and jar production
Technical data
- ZrO₂ content
- 18% – 32%
- Service temperature
- 1500 – 1650 °C
- Density
- 2.8 – 3.3 g/cm³
Values are typical ranges for the material family; a batch-specific analysis certificate can be requested.
Ask for a price
Send the size, quantity and delivery point and we will confirm price and lead time the same day.
