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.

SAE 3000 / DIN 2353 Flanged Connector, Carbon Steel, Type C3

All products, High-pressure adapters/

Additional information

Material	CS – steel (cast iron)

The SAE 3000 flange connection is engineered for reliable performance in demanding hydraulic applications, combining a compact design with a 24° DIN 2353 socket tailored for metric tubing. Delivered as a complete solution with mounting screws and an NBR O-ring seal, it ensures secure installation and leak-free operation. Available in both L (light series) and S (heavy series), it offers flexibility to match diverse system requirements, from standard setups to high-pressure environments. Manufactured from durable carbon steel with a galvanized finish, the flange provides long-lasting resistance to wear and corrosion, even under intensive use. With an operating temperature range from -20°C to +100°C, it guarantees consistent functionality across a wide spectrum of conditions, making it a dependable choice for modern hydraulic systems that demand efficiency, safety, and durability.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HK-C3-M-08-12S	SAE 3000 collar fitting 1/2", tube 12S	-	348
HK-C3-M-08-15L	SAE 3000 collar fitting 1/2", tube 15L	-	348
HK-C3-M-08-16S	SAE 3000 collar fitting 1/2", tube 16S	-	348
HK-C3-M-12-16S	SAE 3000 collar fitting 3/4", tube 16S	-	348
HK-C3-M-12-20S	SAE 3000 collar fitting 3/4", tube 20S	-	348
HK-C3-M-12-22L	SAE 3000 collar fitting 3/4", tube 22L	-	348
HK-C3-M-16-20S	SAE 3000 collar fitting 1", tube 20S	-	348
HK-C3-M-16-25S	SAE 3000 1" collar fitting, tube 25S	-	348
HK-C3-M-16-28L	SAE 3000 1" collar fitting, tube 28L	-	348
HK-C3-M-20-25S	SAE 3000 flange 1.1/4", tube 25S	-	278
HK-C3-M-20-30S	SAE 3000 collar fitting 1.1/4", tube 30S	-	278
HK-C3-M-20-35L	SAE 3000 collar fitting 1.1/4", tube 35L	-	278
HK-C3-M-24-35L	SAE 3000 collar fitting 1.1/2", tube 35L	-	210
HK-C3-M-24-38S	SAE 3000 flange 1.1/2", tube 38S	-	210
HK-C3-M-24-42L	SAE 3000 flange 1.1/2", tube 42L	-	210
HK-C3-M-32-38S	SAE 3000 collar fitting 2", tube 38S	-	210
HK-C3-M-32-42L	SAE 3000 collar fitting 2", tube 42L	-	210

The SAE 3000 flange connection is engineered for reliable performance in demanding hydraulic applications, combining a compact design with a 24° DIN 2353 socket tailored for metric tubing. Delivered as a complete solution with mounting screws and an NBR O-ring seal, it ensures secure installation and leak-free operation. Available in both L (light series) and S (heavy series), it offers flexibility to match diverse system requirements, from standard setups to high-pressure environments. Manufactured from durable carbon steel with a galvanized finish, the flange provides long-lasting resistance to wear and corrosion, even under intensive use. With an operating temperature range from -20°C to +100°C, it guarantees consistent functionality across a wide spectrum of conditions, making it a dependable choice for modern hydraulic systems that demand efficiency, safety, and durability.