Is the Quad Coupling K, Carbon Steel compatible with standard 24° DIN 2353 fittings and both L (light) and S (heavy) series systems?

Yes. The Quad Coupling K, Carbon Steel is compatible with standard 24° DIN 2353 fittings and is available for both L (light) and S (heavy) series systems. Its 24° DIN 2353 socket, external metric threads, and standardized design ensure secure, leak-free connections across international systems, while carbon steel construction and galvanized finish support durability in both standard and heavy-duty applications.

Can the Quad Coupling K, Carbon Steel withstand continuous high-pressure cycling in heavy-duty S (heavy) series applications without frequent replacement?

Yes. The Quad Coupling K, Carbon Steel in the S (heavy) series is designed specifically for heavy-duty, high-pressure applications and, when used and maintained correctly, can withstand continuous high-pressure cycling without frequent replacement. Key reasons: - Heavy-series construction: The S version is built to handle elevated loads and cyclic stresses compared with the L (light) series. - Material and finish: High-quality carbon steel with a durable galvanized coating provides strong mechanical strength, wear and corrosion resistance, and extended service life under demanding conditions. - Proven sealing geometry: The 24° DIN 2353 socket with standardized metric threads ensures secure, leak-free joints that tolerate pressure fluctuations. - Standardization and compatibility: Engineered to DIN 2353 standards, it fits established system practices that help avoid installation-induced failures. Caveats: longevity depends on correct selection (pressure rating and size), proper installation/torque, system cleanliness, fluid compatibility, and operating conditions (pressure amplitude, frequency, temperature). Regular inspection and scheduled maintenance will maximize service life.

Quad Coupling K, Carbon Steel

Additional information

Material	CS – steel (cast iron)

The DIN 2353 four-way connector, type K, is a precision-engineered component designed for reliable performance in demanding hydraulic and pneumatic systems. Featuring a 24° DIN 2353 socket combined with robust external metric threads, it ensures secure and leak-free connections even under high pressure. Available in both the L (light series) and S (heavy series) versions, this connector offers flexibility to match a wide range of system requirements, from standard applications to heavy-duty industrial use. Manufactured from high-quality carbon steel and finished with a durable galvanized coating, it provides excellent resistance to wear, corrosion, and mechanical stress, extending the service life of installations. Its standardized design guarantees compatibility with international systems, making it an ideal choice for engineers and maintenance professionals seeking efficiency, safety, and long-term reliability. This connector is a trusted solution for optimizing hydraulic performance while reducing downtime and maintenance costs.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HD-K-06L	DIN 2353 fitting K 6L	-	315	In stock	Enquiry
HD-K-06S	DIN 2353 fitting K 6S	-	630	In stock	Enquiry
HD-K-08L	DIN 2353 fitting K 8L	-	315	In stock	Enquiry
HD-K-08S	DIN 2353 fitting K 8S	-	630	In stock	Enquiry
HD-K-10L	DIN 2353 fitting K 10L	-	315	In stock	Enquiry
HD-K-10S	DIN 2353 fitting K 10S	-	630	In stock	Enquiry
HD-K-12L	DIN 2353 fitting K 12L	-	315	In stock	Enquiry
HD-K-12S	DIN 2353 fitting K 12S	-	630	In stock	Enquiry
HD-K-14S	DIN 2353 fitting K 14S	-	630	In stock	Enquiry
HD-K-15L	DIN 2353 fitting K 15L	-	315	In stock	Enquiry
HD-K-16S	DIN 2353 fitting K 16S	-	400	In stock	Enquiry
HD-K-18L	DIN 2353 Connector K 18L	-	315	In stock	Enquiry
HD-K-20S	DIN 2353 fitting K 20S	-	400	In stock	Enquiry
HD-K-22L	DIN 2353 fitting K 22L	-	160	In stock	Enquiry
HD-K-25S	DIN 2353 fitting K 25S	-	400	In stock	Enquiry
HD-K-28L	DIN 2353 fitting K 28L	-	160	In stock	Enquiry
HD-K-30S	DIN 2353 fitting K 30S	-	400	In stock	Enquiry
HD-K-35L	DIN 2353 fitting K 35L	-	160	In stock	Enquiry
HD-K-38S	DIN 2353 fitting K 38S	-	315	In stock	Enquiry
HD-K-42L	DIN 2353 fitting K 42L	-	160	In stock	Enquiry

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The DIN 2353 four-way connector, type K, is a precision-engineered component designed for reliable performance in demanding hydraulic and pneumatic systems. Featuring a 24° DIN 2353 socket combined with robust external metric threads, it ensures secure and leak-free connections even under high pressure. Available in both the L (light series) and S (heavy series) versions, this connector offers flexibility to match a wide range of system requirements, from standard applications to heavy-duty industrial use. Manufactured from high-quality carbon steel and finished with a durable galvanized coating, it provides excellent resistance to wear, corrosion, and mechanical stress, extending the service life of installations. Its standardized design guarantees compatibility with international systems, making it an ideal choice for engineers and maintenance professionals seeking efficiency, safety, and long-term reliability. This connector is a trusted solution for optimizing hydraulic performance while reducing downtime and maintenance costs.