Does the DKOL 90Â° hydraulic end, type ZMW221, light series (carbon steel, zinc-nickel) require a specific crimping sleeve size for proper hose installation?

Yes. The DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel requires a crimping sleeve matched to the hose type and size for proper installation. It is designed for crimping in hydraulic and industrial hoses and must be used with a sleeve appropriate for the hose construction (inner diameter, reinforcement layers and outer cover). Use the crimping sleeve specification provided by the hose manufacturer or the sleeve series recommended for the hose coupling family to ensure correct crush diameter, crimp profile and reliable sealing with the internal thread, nut and Oâring on the 24Â° cone. Incorrect sleeve size or profile can cause leaks, reduced strength or failure.

Is a specific crimping pressure or die profile required for DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel?

No specific crimping pressure value or unique die profile is specified for the DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zincânickel. It is designed to be crimped using a crimping sleeve appropriate for the hose type; therefore you must use the crimping pressure and die profile recommended by the hose and crimp sleeve manufacturer for that specific hose construction and size. Ensure the die profile matches the sleeve and hose, and follow manufacturer torque, inspection and testing procedures after crimping.

Can DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel be used with standard hydraulic hoses of different inner diameters?

No. DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel must be matched to hydraulic hoses with the correct inner diameter and corresponding crimping sleeve size; it cannot be indiscriminately used with hoses of different inner diameters. Why: DKOL 90Â° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel is a crimp-type fitting designed to be permanently attached by crimping a sleeve sized for a specific hose construction and internal diameter. Proper sealing relies on: - correct internal thread and nut engagement, - an Oâring sealing on a 24Â° cone (DKOL) seating geometry, - a crimp sleeve that compresses the fitting and hose uniformly. Using a sleeve or hose with a mismatched inner diameter will prevent correct crimp compression, can damage the hose or fitting, fail to compress the Oâring seating correctly, and lead to leaks or catastrophic failure under pressure. Always use the crimping sleeve and hose size specified by the fitting and hose manufacturers, and perform crimping with appropriate tooling and quality checks (dimensional verification, pull tests, visual inspection). Additional note: The zincânickel coating and carbon steel body provide high corrosion resistance but do not compensate for mechanical incompatibility between fitting, sleeve, and hose.

DKOL 90° hydraulic end, type ZMW221, light series, carbon steel, zinc-nickel

All products, Fittings for high-pressure hoses/

Additional information

Material	CS – steel (cast iron)

Standard hydraulic end (type Z – with a regular hydraulic “tail” for hose), with internal metric thread and nut, sealing with an O-ring on a 24° cone (DKOL), 90° angled, lightweight series. Designed for crimping in hydraulic and industrial hoses using a crimping sleeve suitable for the hose type. Surface coated with zinc-nickel with a layer thickness of 6-10 µm, characterized by very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-ZMW221-12-03-CN	End fitting 90° G1/2 M12x1.5, hose 3/16", 24°, o-ring, lightweight, Zn-Ni	5	-	In stock	Enquiry
TI-ZMW221-12-04-CN	End fitting 90° G1/2 M12x1.5, hose 1/4", 24°, o-ring, lightweight, Zn-Ni	6	-	In stock	Enquiry
TI-ZMW221-14-04-CN	End fitting 90° G1/2 M14x1.5, hose 1/4", 24°, o-ring, lightweight, Zn-Ni	6	-	In stock	Enquiry
TI-ZMW221-16-04-CN	End fitting 90° G1/2 M16x1.5, hose 1/4", 24°, o-ring, lightweight, Zn-Ni	6	-	In stock	Enquiry
TI-ZMW221-16-05-CN	End fitting 90° G1/2 M16x1.5, hose 5/16", 24°, o-ring, lightweight, Zn-Ni	8	-	In stock	Enquiry
TI-ZMW221-16-06-CN	End. 90° G1/2 M16x1.5, hose 3/8", 24°, o-ring, lightweight, Zn-Ni	10	-	In stock	Enquiry
TI-ZMW221-18-05-CN	End fitting 90° G1/2 M18x1.5, hose 5/16", 24°, o-ring, lightweight, Zn-Ni	8	-	In stock	Enquiry
TI-ZMW221-18-06-CN	End fitting 90° G1/2 M18x1.5, hose 3/8", 24°, o-ring, lightweight, Zn-Ni	10	-	In stock	Enquiry
TI-ZMW221-22-08-CN	End. 90° G1/2" M22x1.5, hose 1/2", 24°, o-ring, lightweight, Zn-Ni	12	-	In stock	Enquiry
TI-ZMW221-26-10-CN	End. 90° G1 M26x1.5, hose 5/8", 24°, o-ring, lightweight, Zn-Ni	16	-	In stock	Enquiry
TI-ZMW221-30-12-CN	End. 90° G1 M30x2, hose 3/4", 24°, o-ring, lightweight, Zn-Ni	20	-	In stock	Enquiry
TI-ZMW221-36-16-CN	End. 90° GW M36x2, hose 1", 24°, o-ring, lightweight, Zn-Ni	25	-	In stock	Enquiry
TI-ZMW221-45-20-CN	End fitting 90° G1/2 M45x2, hose 1.1/4", 24°, o-ring, lightweight, Zn-Ni	32	-	In stock	Enquiry
TI-ZMW221-52-24-CN	End fitting 90° G1/2" M52x2, hose 1.1/2", 24°, o-ring, lightweight, Zn-Ni	38	-	In stock	Enquiry

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Standard hydraulic end (type Z – with a regular hydraulic “tail” for hose), with internal metric thread and nut, sealing with an O-ring on a 24° cone (DKOL), 90° angled, lightweight series. Designed for crimping in hydraulic and industrial hoses using a crimping sleeve suitable for the hose type. Surface coated with zinc-nickel with a layer thickness of 6-10 µm, characterized by very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel.