Is the 90Â° angle tube end, carbon steel, type RBS compatible with low-pressure rubber and textile-reinforced plastic hoses with external steel braid?

Yes. The 90Â° angle tube end, carbon steel, type RBS Format is compatible with low-pressure rubber and textile-reinforced plastic hoses with an external steel braid. It is specifically designed for low-pressure rubber and non-reinforced or textile-reinforced plastic hoses that have an external steel braid, and is commonly used in flexible conduits for sanitary fittings, fuel systems, air systems, etc. The carbon steel, galvanized construction provides suitable strength and corrosion protection for these applications.

Does the 90Â° angle tube end, carbon steel, type RBS require specific hose inner diameter tolerances for a secure fit?

Yes. The 90Â° angle tube end, carbon steel, type RBS requires appropriate hose inner diameter (ID) tolerances to ensure a secure, leak-free fit. especially because it is a no-nut fitting intended for low-pressure rubber and non-reinforced or textile-reinforced plastic hoses with an external steel braid. Key points: - Matching ID: The hose inner diameter must closely match the tube barb/shaft diameter of the RBS fitting. Too large an ID will slip and leak; too small an ID can tear the hose or prevent proper assembly. - Interference fit: A light interference (hose ID slightly smaller than the barb) is typically needed so the hose stretches over the fitting and grips the barb grooves or knurling. The exact interference tolerance depends on hose material and wall thickness; rubber hoses normally tolerate greater stretch than stiffer plastics. - Material considerations: Rubber and textile-reinforced plastic hoses require different tolerances. rubber can accept higher interference, non-reinforced plastics need closer control. The external steel braid does not secure the hose to the fitting internally, so ID fit is critical. - Low-pressure application: Because the RBS is for low-pressure systems, reliance on hose elasticity and possibly clamps is common. Even with correct ID, using an appropriate clamp or crimp (if compatible) improves safety and prevents blow-off under transient pressure. - Assembly practice: Heat or lubricant may be used to ease installation if the interference is tight. Ensure the hose covers the full barb length and seats against the fitting shoulder. - Recommendation: Follow the hose manufacturerâs recommended ID tolerance for barbed fittings and verify the tube endâs barb diameter. If in doubt, select hose ID equal to the nominal barb size or slightly undersized per manufacturer guidelines, and use a clamp suitable for the service to ensure a secure joint. In summary: correct hose ID tolerance relative to the RBS barb is essential for a secure fit; choose tolerances based on hose material and use a clamp for added security in low-pressure systems.

90° angle tube end, carbon steel, type RBS

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Additional information

Material	CS – steel (cast iron)

90° angled tube end fitting type RBS, without a nut, designed for low-pressure rubber and non-reinforced and textile-reinforced plastic hoses, with an external steel braid. Commonly used in flexible conduits for sanitary fittings, fuel systems, air systems, etc. Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
EC-108304	90° tube end RBS 4 mm (hose 4.5 mm)	4	30	In stock	Enquiry
EC-108305	90° tube end RBS 5 mm (hose 5.5 mm)	5	30	In stock	Enquiry
EC-108306	90° tube end RBS 6 mm (hose 5.5 mm)	6	30	In stock	Enquiry
EC-108308	90° tube end RBS 8 mm (hose 7.5 mm)	8	30	In stock	Enquiry
EC-108310	90° tube end RBS 10 mm (hose 9 mm)	10	30	In stock	Enquiry
EC-108312	90° tube end RBS 12 mm (hose 11.5 mm)	12	30	In stock	Enquiry
EC-108315	90° tube end RBS 15 mm (hose 14.5 mm)	14	30	In stock	Enquiry
EC-108318	90° tube end RBS 18 mm (hose 17 mm)	18	30	In stock	Enquiry

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90° angled tube end fitting type RBS, without a nut, designed for low-pressure rubber and non-reinforced and textile-reinforced plastic hoses, with an external steel braid. Commonly used in flexible conduits for sanitary fittings, fuel systems, air systems, etc. Material: carbon steel, galvanized.