Banjo fittings
The banjo fittings of Metric and BSPP type (British Standard Parallel Pipe), have two parts:
A hollow perforated bolt and a spherical fluid transfer union. They are mainly used in applications with medium to high pressure— up to 800 bar (11,600 psi).
Banjo fittings move in relation to the fitting attachment; hence, when the fitting is placed in location, the hose does not bend or twist.
Banjo fittings have the primary advantage of not having to bend close to the fitting attachment; therefore, when the fitting is stuck in position, the hose does not bend which preserves it.
Banjo fittings are used in lot of applications, particularly in the automotive and mobile machinery industries, such as:
- hydraulic clutch structures,
- brake caliper connectors,
- air dosing for targeted catalytic reduction technologies,
- fuel filter connectors,
- energy steering liquid lines,
- turbo charger oil feed lines and variable valve timing schemes.
What are the main advantages of using banjo fittings in high-pressure applications?
Banjo fittings offer several advantages in high-pressure applications, primarily due to their unique design. The ability of the fitting to rotate allows for easy installation without the need for the hose to bend or twist, which can reduce strain on connections and minimize the risk of leaks. Additionally, they are designed to handle pressures of up to 800 bar (11,600 psi), making them suitable for various demanding environments.
How do I select the appropriate banjo fitting for my hydraulic system?
When selecting a banjo fitting, consider the following factors: the type of connection needed (e.g., BSPP or Metric), the required pressure rating, and the compatibility of materials with the fluids being used. For instance, you might choose the DIN2353 Cutting ring - BSP - Parallel - Standard - Banjo Elbows for standard applications or the DIN2353 Cutting ring - BSP - Parallel - OMD Banjo Elbows for applications requiring specific sealing properties.
What materials are commonly used for banjo fittings and how do they affect performance?
Banjo fittings are often made from stainless steel, which offers exceptional corrosion resistance and durability, essential for high-pressure systems. The choice of material can significantly affect the performance and longevity of the fitting. For instance, the DIN2353 Cutting ring - BSP - Parallel - SC - Banjo Tees features enhanced sealing capabilities due to its construction, making it ideal for more demanding applications.