Is the Collet for Hydraulic Hoses 2ST/4SP, Zinc-Nickel Carbon Steel, ZF2 Type compatible with hoses of different inner diameters if outer diameter matches?

Collet for Hydraulic Hoses 2ST/4SP, Zinc-Nickel Carbon Steel, ZF2 Type is designed to match the hose’s outer diameter (diameter D1) for precise sealing and stability. Compatibility therefore depends on the inner diameter only insofar as it affects the hose’s wall thickness and thus the outer diameter. If two hoses have different inner diameters but the same outer diameter and wall construction suitable for 2ST (R2A) or 4SP types, the ZF2 sleeve can fit and seal correctly. However, if differing inner diameters change wall stiffness or geometry (e.g., collapsed reinforcement layers, different tolerance ranges), sealing reliability and clamp performance may be compromised. For safe use, ensure the hose meets the specified type (2ST/4SP), has the exact outer diameter tolerance the ZF2 is machined for, and that manufacturer recommendations for wall construction and pressure ratings are followed.

Can the Collet for Hydraulic Hoses 2ST/4SP, Zinc-Nickel Carbon Steel, ZF2 Type be used with hoses of different materials if their outer diameter and reinforcement are identical?

Collet for Hydraulic Hoses 2ST/4SP, Zinc-Nickel Carbon Steel, ZF2 Type can be used with hoses made of different materials only if their outer diameter and reinforcement (braid/spiral) are identical to the specified 2ST (R2A) or 4SP construction. The ZF2’s D1 dimension and external machining are engineered to match the hose outer diameter and to clamp onto the reinforcement layer for mechanical stability and sealing. If a hose of another material has the same outer diameter and identical reinforcement geometry, the sleeve will likely achieve proper fit and function. However, differences in hose cover hardness, compressibility or surface finish can affect sealing performance and clamp bite; incompatible elastomers or excessively soft covers may deform or leak despite matching diameters. Also ensure working pressure, temperature range and chemical compatibility of the hose material align with the intended application. In short: compatible if outer diameter and reinforcement are truly identical and operational conditions are met; otherwise testing or manufacturer confirmation is required.

Collet for Hydraulic Hoses 2ST/4SP, Zinc-Nickel Carbon Steel, ZF2 Type

All products, Fittings for high-pressure hoses/

Additional information

Material	CS – steel (cast iron)

The ZF2 clamping sleeve is a durable and precisely engineered solution designed for secure connection of rubber hydraulic hoses type 2ST (R2A) or 4SP, ensuring reliable performance even in demanding applications. Manufactured from high-quality carbon steel and finished with an advanced zinc-nickel coating of 6–10 µm, it offers exceptional resistance to corrosion, proven to withstand up to 720 hours in salt spray testing without signs of degradation. The external machining installation guarantees a precise fit, while the carefully designed diameter D1 corresponds to the hose’s outer diameter, providing optimal sealing and stability. Thanks to its robust construction and protective surface treatment, the ZF2 sleeve ensures long-lasting durability, reduced maintenance needs, and enhanced safety of hydraulic systems, making it an excellent choice for industries where reliability and efficiency are essential.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
TI-ZF2-04-CN	Sleeve for hose 2ST(R2A) and 4SP 1/4", Zn-Ni	6	-
TI-ZF2-05-CN	Sleeve for hose 2ST(R2A) 5/16", Zn-Ni	8	-
TI-ZF2-06-CN	Sleeve for hose 2ST(R2A) and 4SP 3/8", Zn-Ni	10	-
TI-ZF2-08-CN	Sleeve for hose 2ST(R2A) and 4SP 1/2", Zn-Ni	12	-
TI-ZF2-10-CN	Sleeve for hose 2ST(R2A) and 4SP 5/8", Zn-Ni	16	-
TI-ZF2-12-CN	Sleeve for hose 2ST(R2A) and 4SP 3/4", Zn-Ni	20	-
TI-ZF2-16-CN	Sleeve for hose 2ST(R2A) and 4SP 1", Zn-Ni	25	-
TI-ZF2-20-CN	Sleeve for hose 2ST(R2A) and 4SP 1.1/4", Zn-Ni	32	-
TI-ZF2-24-CN	Sleeve for hose 2ST(R2A) and 4SP 1.1/2", Zn-Ni	38	-
TI-ZF2-32-CN	Sleeve for hose 2ST(R2A) and 4SP 2", Zn-Ni	50	-

The ZF2 clamping sleeve is a durable and precisely engineered solution designed for secure connection of rubber hydraulic hoses type 2ST (R2A) or 4SP, ensuring reliable performance even in demanding applications. Manufactured from high-quality carbon steel and finished with an advanced zinc-nickel coating of 6–10 µm, it offers exceptional resistance to corrosion, proven to withstand up to 720 hours in salt spray testing without signs of degradation. The external machining installation guarantees a precise fit, while the carefully designed diameter D1 corresponds to the hose’s outer diameter, providing optimal sealing and stability. Thanks to its robust construction and protective surface treatment, the ZF2 sleeve ensures long-lasting durability, reduced maintenance needs, and enhanced safety of hydraulic systems, making it an excellent choice for industries where reliability and efficiency are essential.