Is the Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 compatible with standard hydraulic hoses and fittings?

Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 Format is generally compatible with standard hydraulic hoses and fittings used in systems rated for SAE 3000 (approximately 3000 psi) provided the following conditions are met: - Pressure rating: Hoses and fittings must be rated for SAE 3000 (or higher) to match the flangeâs pressure capability. - Connection type: The flange is a welding socket type; it requires a matching flange interface or adapter on the hose/assembly. Direct thread-on hose ends are not compatible without an appropriate flange adapter or tube/pipe welded section. - Seal material: Supplied O-ring is NBR; ensure fluid compatibility (NBR is suitable for many mineral hydraulic oils but less suitable for phosphate esters, some bio-hydraulic fluids, and high temperatures). - Temperature range: Operating temperature â20Â°C to +100Â°C must align with hose and seal temperature ratings. - Material and corrosion: Carbon steel is standard; ensure hose fittings and system materials provide acceptable corrosion resistance for the application environment. - Mounting: Supplied mounting screws and flange dimensions must match the mating component; verify bolt pattern and face finish with the mating flange. If these conditions are satisfied (pressure, matching flange interface or adapter, compatible seal material and temperature range, and correct mounting/bore), the Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 Format will be compatible with standard hydraulic hoses and fittings.

Can the Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 be used with different O-ring materials for extreme temperatures?

Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 Format as supplied uses an NBR O-ring and is rated for -20Â°C to +100Â°C. If your application requires extreme temperatures outside that range, you can replace the supplied NBR O-ring with a different material (e.g., FKM/Viton for higher temperatures, EPDM for heat and some chemical resistance, or silicone/fluoroelastomers for low-temperature performance). Before changing O-ring material confirm chemical compatibility with hydraulic fluid, hardness (durometer) for sealing under pressure, and thermal limits. Also verify that the flangeâs carbon steel body and welded joint are suitable for the intended temperature extremes (thermal expansion, embrittlement, corrosion). If in doubt, consult the manufacturer or a qualified engineer to select the correct O-ring compound and validate the assembly for safe operation.

Does the Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3 include corrosion-resistant coating options?

Flange connection 90Â° SAE 3000 for welding, carbon steel, type D3. based on the provided description. is specified as being made of carbon steel with a compact design, socket for welding, supplied with mounting screws and an NBR O-ring, and rated for operation from -20Â°C to +100Â°C. The description does not mention any corrosion-resistant coating options (e.g., zinc plating, galvanizing, phosphate, epoxy, or other protective finishes). Therefore, you should assume the standard product is bare carbon steel unless the manufacturer or supplier explicitly offers and documents coating or surface-treatment options. If corrosion resistance is required for your application, request from the vendor: available coatings or treatments, compatibility with hydraulic fluids and the O-ring (NBR), any impact on welding procedures, and relevant corrosion-resistance test data or specifications.

Flange connection 90° SAE 3000 for welding, carbon steel, type D3

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Additional information

Material	CS – steel (cast iron)

90° SAE 3000 flange connection with a compact design and socket for welding, intended for use in hydraulic systems. Supplied with mounting screws and an O-ring seal (NBR). Material: carbon steel. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HK-D3-SA-90-08-21	90° flange fitting SAE 3000 1/2", for welding 21.6 mm	-	348	In stock	Enquiry
HK-D3-SA-90-12-27	90° flange fitting SAE 3000 3/4", for welding 27.2 mm	-	348	In stock	Enquiry
HK-D3-SA-90-16-34	90° flange fitting SAE 3000 1", for welding 34.1 mm	-	348	In stock	Enquiry
HK-D3-SA-90-20-42	90° flange fitting SAE 3000 1.1/4", for welding 42.8 mm	-	278	In stock	Enquiry
HK-D3-SA-90-24-48	90° flange fitting SAE 3000 1.1/2", for welding 48.6 mm	-	210	In stock	Enquiry
HK-D3-SA-90-32-61	90° flange fitting SAE 3000 2", for welding 61 mm	-	210	In stock	Enquiry
HK-D3-SA-90-40-76	90° flange fitting SAE 3000 2.1/2", for welding 76.6 mm	-	175	In stock	Enquiry

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90° SAE 3000 flange connection with a compact design and socket for welding, intended for use in hydraulic systems. Supplied with mounting screws and an O-ring seal (NBR). Material: carbon steel. Operating temperature: from -20°C to +100°C.