Is the Hose collet, carbon steel, type CNFL compatible with CN couplings and suitable for crimping rubber and plastic industrial hoses?

Yes. The Hose collet, carbon steel, type CNFL is designed specifically for crimping rubber and plastic industrial hoses and is made for CN type ends and couplings. Its dimensions (D1 outer diameter, D2 inner diameter, D3 lock diameter) allow correct matching to the hose and CN coupling sizes, and the carbon steel, galvanized construction provides the strength and corrosion resistance required for reliable crimping. Ensure you select the collet size that corresponds to your hose and CN coupling diameters for proper fit and secure crimp.

Can Hose collet, carbon steel, type CNFL withstand corrosive environments and outdoor use after galvanization?

Hose collet, carbon steel, type CNFL: Galvanization improves corrosion resistance and makes the collet suitable for many outdoor and mildly corrosive environments. However, carbon steel even when galvanized can corrode over time in aggressive chemical exposures (strong acids, alkalis, salt spray/marine atmospheres) or where the zinc layer is mechanically damaged. For long-term outdoor use and moderate exposure (rain, humidity, typical industrial atmospheres) galvanized CNFL should perform adequately. For highly corrosive environments, continuous salt exposure, or where longevity and minimal maintenance are critical, consider stainless steel or additional protective coatings. Evaluate specific service conditions (chemistry, temperature, abrasion) to confirm suitability.

How do I determine the correct D3 lock diameter for Hose collet, carbon steel, type CNFL when crimping different hose layers?

To determine the correct D3 lock diameter for a Hose collet, carbon steel, type CNFL when crimping different hose layers, follow these steps: 1. Identify hose construction and layers. measure outer diameter (D1) of the hose assembly including all layers (cover, reinforcement, inner tube) after fittings are positioned. D1 = outer diameter [mm]. 2. Confirm inner clearance. measure the bore of the mating CN type end or coupling that the collet must engage. This corresponds to D2 = inner diameter [mm] of the collet; ensure D2 is slightly larger than the hose outer diameter before crimping but smaller than the coupling bore if required. 3. Determine required crimp reduction. the D3 lock diameter is the final diameter after crimping that secures the hose layers and creates the mechanical lock. D3 must be smaller than the original D1 by an amount that compresses outer and reinforcement layers enough to prevent slippage but not so much as to damage the hose. Typical reduction ranges depend on hose type: - Single-layer rubber or plastic: 5â10% reduction of D1. - Multi-layer/reinforced hoses: 7â12% reduction of D1. Use the lower end for softer materials, higher end for heavy reinforcement. 4. Calculate D3: D3 = D1 Ã (1 â reduction%) Example: For D1 = 50 mm and a 8% reduction â D3 = 50 Ã 0.92 = 46.0 mm. 5. Verify material limits and tolerances. ensure the carbon steel, galvanized Sleeve can plastically deform to the calculated D3 without cracking. Check manufacturer tolerances for CNFL sleeves and the coupling interface. If available, use the CNFL product chart to match D1 to recommended D3 sizes. 6. Test and validate. perform a trial crimp on a sample hose assembly, then inspect for: - Proper compression of layers without delamination or collapse of inner tube. - Secure engagement in the CN type coupling. - No excessive deformation of the collet or coupling. Adjust D3 slightly if slippage or damage occurs. 7. Finalize selection. choose the CNFL Sleeve whose nominal D2/D3 pair matches the calculated D3 and intended D1, respecting manufacturer recommendations and safety margins. Use Hose collet, carbon steel, type CNFL measurements (D1 outer diameter, D2 inner diameter, D3 lock diameter) and the above reduction guidelines to determine correct D3 for each hose construction.

Ferrule for a hose, carbon steel, type CNFL

All products, Low-pressure fittings and adapters/

Additional information

Material	CS – steel (cast iron)

Ferrule CNFL for crimping rubber hoses and industrial plastic hoses. Intended for CN-type ends and connectors. Diameter D1 – external diameter. Diameter D2 – internal diameter. Diameter D3 – lock diameter. Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
AC-CNFL-150-1	Sleeve LD na hose 1.1/2" (49÷51 mm), galvanized steel	38	-	In stock	Enquiry
AC-CNFL-150-2	Sleeve LD na hose 1.1/2" (51÷54 mm), galvanized steel	38	-	In stock	Enquiry
AC-CNFL-150-3	Sleeve LD na hose 1.1/2" (54÷57 mm), galvanized steel	38	-	In stock	Enquiry
AC-CNFL-200-1	Sleeve LD na hose 2" (65÷67 mm), galvanized steel	50	-	In stock	Enquiry
AC-CNFL-200-2	Sleeve LD na hose 2" (67÷70 mm), galvanized steel	50	-	In stock	Enquiry
AC-CNFL-200-3	Sleeve LD na hose 2" (70÷73 mm), galvanized steel	50	-	In stock	Enquiry
AC-CNFL-250-1	Sleeve LD na hose 2.1/2" (78÷82.5 mm), galvanized steel	65	-	In stock	Enquiry
AC-CNFL-250-2	Sleeve LD na hose 2.1/2" (80÷82.5 mm), galvanized steel	65	-	In stock	Enquiry
AC-CNFL-300-1	Sleeve LD na hose 3" (90.5÷92 mm), galvanized steel	75	-	In stock	Enquiry
AC-CNFL-300-2	Sleeve LD na hose 3" (92.5÷95 mm), galvanized steel	75	-	In stock	Enquiry
AC-CNFL-300-3	Sleeve LD na hose 3" (95.6÷98.5 mm), galvanized steel	75	-	In stock	Enquiry
AC-CNFL-400-1	Sleeve LD na hose 4" (117.5÷119 mm), galvanized steel	100	-	In stock	Enquiry
AC-CNFL-400-2	Sleeve LD na hose 4" (119.5÷122 mm), galvanized steel	100	-	In stock	Enquiry
AC-CNFL-400-3	Sleeve LD na hose 4" (122.5÷125.5 mm), galvanized steel	100	-	In stock	Enquiry

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Ferrule CNFL for crimping rubber hoses and industrial plastic hoses. Intended for CN-type ends and connectors. Diameter D1 – external diameter. Diameter D2 – internal diameter. Diameter D3 – lock diameter. Material: carbon steel, galvanized.