Is the SAE 3000 / DIN 2353 Flanged Connector, Carbon Steel, Type C3 compatible with both L (light) and S (heavy) series hydraulic systems?

Yes. The SAE 3000 / DIN 2353 Flanged Connector, Carbon Steel, Type C3 is available in both L (light series) and S (heavy series) variants and is designed to be compatible with each. This allows selection of the appropriate variant to match system requirements—L for standard, lower-pressure setups and S for higher-pressure, heavy-duty applications—while maintaining the same 24° DIN 2353 interface, NBR O‑ring sealing, and mounting hardware for secure, leak‑free installation.

What mounting screws and torque specifications are recommended for the SAE 3000 / DIN 2353 Flanged Connector, Carbon Steel, Type C3 to ensure leak-free installation?

For SAE 3000 / DIN 2353 Flanged Connector, Carbon Steel, Type C3, use the supplied mounting screws matched to the flange series: - Light series (L): M8 bolts, grade 8.8 (or ISO 898-1 class 8.8) - Heavy series (S): M10 bolts, grade 10.9 (or ISO 898-1 class 10.9) Tightening torque (initial, then final after pressurization if possible): - M8, grade 8.8: 24–28 N·m - M10, grade 10.9: 50–60 N·m Installation notes: - Use the supplied NBR O-ring; lightly lubricate O-ring with compatible hydraulic oil before assembly. - Torque in a crisscross/star pattern incrementally (e.g., 30%, 60%, 100% of final torque) to ensure even sealing. - Recheck torque after first pressure cycle and periodically per maintenance schedule. - If alternative bolt grades or thread sizes are used, adjust torque to manufacturer’s spec for that fastener material.

Connection flange SAE 3000 / DIN 2353, steel carbon, type C3

All products, High-pressure adapters/

Additional information

Material	CS – steel (cast iron)

Connection flange SAE 3000 o compact construction with socket 24° DIN 2353 under tube metric for use in systems hydraulic. supplied of screws fixing and seal O-ring (NBR). occurs as: L (series light), S (series heavy). Material: steel carbon, galvanized. Operating temperature: od -20°C up to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HK-C3-M-08-12S	Flange connection SAE 3000 1/2", tube 12S	-	348	In stock	Enquiry
HK-C3-M-08-15L	Flange connection SAE 3000 1/2", tube 15L	-	348	In stock	Enquiry
HK-C3-M-08-16S	Flange connection SAE 3000 1/2", tube 16S	-	348	In stock	Enquiry
HK-C3-M-12-16S	Flange connection SAE 3000 3/4", tube 16S	-	348	In stock	Enquiry
HK-C3-M-12-20S	Flange connection SAE 3000 3/4", tube 20S	-	348	In stock	Enquiry
HK-C3-M-12-22L	Flange connection SAE 3000 3/4", tube 22L	-	348	In stock	Enquiry
HK-C3-M-16-20S	Flange connection SAE 3000 1", tube 20S	-	348	In stock	Enquiry
HK-C3-M-16-25S	Flange connection SAE 3000 1", tube 25S	-	348	In stock	Enquiry
HK-C3-M-16-28L	Flange connection SAE 3000 1", tube 28L	-	348	In stock	Enquiry
HK-C3-M-20-25S	Flange connection SAE 3000 1.1/4", tube 25S	-	278	In stock	Enquiry
HK-C3-M-20-30S	Flange connection SAE 3000 1.1/4", tube 30S	-	278	In stock	Enquiry
HK-C3-M-20-35L	Flange connection SAE 3000 1.1/4", tube 35L	-	278	In stock	Enquiry
HK-C3-M-24-35L	Flange connection SAE 3000 1.1/2", tube 35L	-	210	In stock	Enquiry
HK-C3-M-24-38S	Flange connection SAE 3000 1.1/2", tube 38S	-	210	In stock	Enquiry
HK-C3-M-24-42L	Flange connection SAE 3000 1.1/2", tube 42L	-	210	In stock	Enquiry
HK-C3-M-32-38S	Flange connection SAE 3000 2", tube 38S	-	210	In stock	Enquiry
HK-C3-M-32-42L	Flange connection SAE 3000 2", tube 42L	-	210	In stock	Enquiry

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Connection flange SAE 3000 o compact construction with socket 24° DIN 2353 under tube metric for use in systems hydraulic. supplied of screws fixing and seal O-ring (NBR). occurs as: L (series light), S (series heavy). Material: steel carbon, galvanized. Operating temperature: od -20°C up to +100°C.