Is the INTERLOCK GZ Metric Straight End, Heavy Series, Carbon Steel compatible with 4SH, R13, and R15 hoses and suitable for high-pressure hydraulic systems?

Yes. The INTERLOCK GZ Metric Straight End, Heavy Series, Carbon Steel is compatible with 4SH, R13, and R15 hoses and is suitable for high‑pressure hydraulic systems. Its heavy‑series INTERLOCK design provides a secure, slip‑resistant connection; the 24° cone and precise external metric thread ensure reliable sealing and easy installation. Made of high‑quality carbon steel with protective galvanization, it offers excellent resistance to corrosion and mechanical stress for demanding industrial use, supporting long service life and consistent performance under high pressure.

INTERLOCK GZ Metric Straight End, Heavy Series, Carbon Steel

Q: What maintenance or inspection routines are recommended for the INTERLOCK GZ Metric Straight End, Heavy Series, Carbon Steel to ensure long-term performance with 4SH, R13, and R15 hoses?

Recommended maintenance and inspection routines for INTERLOCK GZ Metric Straight End, Heavy Series, Carbon Steel used with 4SH, R13, and R15 hoses: - Visual inspections weekly: check for external damage, corrosion of the galvanization layer, cracks in the INTERLOCK body, thread wear, and deformation of the 24° cone sealing surface. - Leak checks each shift or after pressure cycles: inspect for fluid seepage at the cone and threaded joint; tighten to specified torque if minor leakage appears, following manufacturer torque values. - Torque verification monthly: confirm thread engagement and torque retention to prevent loosening under vibration and pressure pulsation. - Hose/fitting interface inspection monthly: ensure INTERLOCK barbs and hose cover show no slippage, abrasion, bulging or extrusion; verify proper crimp/crimping dimensions and ferrule integrity. - Pressure-test intervals quarterly (or per system criticality): perform controlled hydraulic pressure tests at design or 1.25× working pressure to confirm sealing and mechanical integrity. - Corrosion control quarterly: assess galvanization condition; remove surface rust, reapply suitable protective coating if protective layer is compromised. - Contamination control: maintain clean assembly practices; flush hydraulic fluid and replace filters per system schedule to prevent abrasive wear on sealing surfaces. - Replacement criteria: replace fitting immediately if threads are stripped, cone seat damaged, INTERLOCK lugs deformed, significant corrosion present, or if repeated leaks persist after retorque. - Recordkeeping: log inspections, torque values, pressure tests, and replacements to track service life and predict proactive replacement. - Training: ensure technicians follow correct assembly torque, alignment, and crimping procedures specific to 4SH, R13, and R15 hoses. These routines maximize sealing reliability, prevent hose slippage, and extend service life under high pressure conditions.

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Additional information

Material	CS – steel (cast iron)

Straight INTERLOCK fitting with external metric thread and 24° cone in heavy series is designed for secure and durable connection with hose types 4SH, R13, and R15. Manufactured from high‑quality carbon steel and finished with a protective galvanization layer, it ensures excellent resistance to corrosion and mechanical stress, even in demanding industrial environments. The robust INTERLOCK construction guarantees maximum safety under high pressure, preventing hose slippage and extending service life. Its precise metric threading allows for easy installation and reliable sealing, making it an ideal solution for hydraulic systems that require consistent performance and long‑term durability. This fitting combines strength, precision, and reliability, offering professionals a trusted component that supports efficiency and minimizes downtime in critical applications.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
TI-ILMZ112-30-12	End. INTERLOCK GZ M30x2, hose 3/4"	20	-
TI-ILMZ112-36-12	End. INTERLOCK GZ M36x2, hose 3/4"	20	-
TI-ILMZ112-42-16	End. INTERLOCK GZ M42x2, hose 1"	25	-
TI-ILMZ112-52-20	End. INTERLOCK GZ M52x2, hose 1.1/4"	32	-

Straight INTERLOCK fitting with external metric thread and 24° cone in heavy series is designed for secure and durable connection with hose types 4SH, R13, and R15. Manufactured from high‑quality carbon steel and finished with a protective galvanization layer, it ensures excellent resistance to corrosion and mechanical stress, even in demanding industrial environments. The robust INTERLOCK construction guarantees maximum safety under high pressure, preventing hose slippage and extending service life. Its precise metric threading allows for easy installation and reliable sealing, making it an ideal solution for hydraulic systems that require consistent performance and long‑term durability. This fitting combines strength, precision, and reliability, offering professionals a trusted component that supports efficiency and minimizes downtime in critical applications.