Is the BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 compatible with refrigerant R134a and the O-rings used in my 3090 type air conditioning hose?

Yes. The BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 is designed for use with 3090 type air conditioning hoses and features an internal UNF ORFS flat-seal thread intended to connect rubber AC hoses to system components. Compatibility with refrigerant R134a depends mainly on materials: the fitting is steel (suitable for R134a), and ORFS flat-seal connections provide a reliable metal-to-metal/flat sealing surface appropriate for highâpressure refrigerant lines. The remaining compatibility point is the O-rings used in your 3090 hose: R134a requires O-rings made from compatible elastomers (commonly HNBR, NBR with appropriate formulation, or FKM/Viton for higher temperature/ozone resistance). If the O-rings in your 3090 hose are made from an R134aâcompatible material (HNBR, suitable NBR, or FKM), the BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 will be compatible with R134a and your hose. If the hose O-rings are of an incompatible elastomer (e.g., standard EPDM or other nonâR134a compounds), they should be replaced with R134aâcompatible O-rings before use.

Does the BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 require special clamps for secure attachment to 3090 type hoses?

BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 does not inherently require special clamps for secure attachment to 3090 type hoses. The product description states it is for 3090 type air conditioning hose and that clips and clamps are available as a separate assortment, implying standard compatible clamps/clips can be used but are not included. For optimal and secure installation, use clamps/clips specified for 3090 hoses or recommended by the hose/fitting manufacturer to ensure correct sealing and mechanical retention.

Can the BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 be used with refrigerant oils common in automotive A/C systems?

BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 can be used with refrigerant oils common in automotive A/C systems. Based on the product description (steel construction, internal UNF ORFS thread. flat seal, intended for 3090 type air conditioning hose, for connecting rubber hoses to A/C system components), the fitting is mechanically suitable for automotive A/C use. Steel fittings with ORFS flat-seal threads are commonly used in refrigerant systems and are compatible with typical A/C refrigerant oils (PAG, POE) provided that: - The steel material is properly plated or corrosion-resistant for the operating environment. - The mating ORFS flat-seal connection is assembled correctly with the appropriate O-ring/sealing surface as specified. - The rubber hose (3090 type) and any clamps/clips used are compatible with the specific refrigerant oil (PAG or POE). POE oils are more aggressive toward certain hose materials and seal compounds. - System pressure, temperature, and chemical compatibility are within the manufacturerâs specifications for the fitting, hose, seals, and clamps. If you plan to use PAG or POE oils (typical in R-134a and R-1234yf systems), verify with the hose and seal manufacturer that their materials are compatible with the chosen oil. Also confirm any surface treatment or plating of the specific BURGACLIP 54503 part for corrosion resistance. If those checks are met, the BURGACLIP 90Â° tip with GW UNF ORFS, steel, type 54503 is appropriate for use with common automotive A/C refrigerant oils.

BURGACLIP 90° tip with GW UNF ORFS, steel, type 54503

Additional information

Material	CS – steel (cast iron)

90° BURGACLIP fitting with internal UNF ORFS thread – flat seal, for 3090 type air conditioning hose. Allows for the connection of rubber hoses to air conditioning system components. Clips and clamps are available as a separate assortment. Material: steel.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
BU-54503-04-06-S	End. 90° BC ORFS, G 9/16", hose 5/16", steel	-	35
BU-54503-06-06-S	End. 90° BC ORFS, G 11/16", hose 5/16", steel	-	35
BU-54503-08-08-S	End. 90° BC ORFS, G 13/16", hose 13/32", steel	-	35
BU-54503-10-10-S	End. 90° BC ORFS, G1", hose 1/2", steel	-	35
BU-54503-12-12-S	End. 90° BC ORFS, G1/2", hose 5/8", steel	-	35

90° BURGACLIP fitting with internal UNF ORFS thread – flat seal, for 3090 type air conditioning hose. Allows for the connection of rubber hoses to air conditioning system components. Clips and clamps are available as a separate assortment. Material: steel.