What are the recommended installation steps for the PN16 Fixed Carbon Steel Hose Flange, Type CNWF to ensure a leak-free and secure connection?

Recommended installation steps for the PN16 Fixed Carbon Steel Hose Flange, Type CNWF to ensure a leak-free and secure connection: 1. Inspect components: verify PN16 Fixed Carbon Steel Hose Flange, Type CNWF is free of damage, galvanization intact, and matches hose size and system specs. Check clamps/straps and bolts for correct type and condition. 2. Prepare hose: cut hose end square and remove debris. For rubber or plastic hoses, ensure inner bore is clean and free of foreign material. If necessary, slightly chamfer the hose ID to ease assembly. 3. Fit flange tail: slide the flange’s tail into the hose end fully until the shoulder seats against the hose. Ensure even seating around the circumference with no gaps or folds. 4. Position clamps/straps: place approved clamp bands or straps over the hose, directly over the flange tail area. Use the number and size of clamps recommended for the hose diameter and pressure class. 5. Tighten evenly: torque clamp fasteners gradually and evenly in a crisscross pattern if multiple clamps are used. Tighten to manufacturer-recommended torque to compress the hose uniformly and form a reliable seal without cutting into the hose. 6. Alignment and bolt-up: align the flange faces with mating flange or connection. Insert bolts and tighten in a star pattern to specified torque for PN16 flanges to avoid distortion and ensure uniform gasket compression if a gasket is used. 7. Leak check: pressurize the system to working pressure and inspect for leaks. Retorque clamps/bolts after initial pressurization if required. 8. Final inspection and maintenance: confirm secure seating, no visible damage, and proper galvanization coverage. Periodically recheck clamp torque and inspect for corrosion or wear during service. Following these steps ensures a secure, leak-free connection using the PN16 Fixed Carbon Steel Hose Flange, Type CNWF.

How does the PN16 Fixed Carbon Steel Hose Flange, Type CNWF perform under high-temperature and chemical exposure conditions?

The PN16 Fixed Carbon Steel Hose Flange, Type CNWF performs well under elevated temperatures and moderate chemical exposure, thanks to its carbon steel construction and protective galvanization. Carbon steel provides good mechanical strength and dimensional stability at higher temperatures typical for many industrial fluid-transfer applications, while the galvanized coating adds corrosion resistance that helps protect the base metal from oxidizing agents and moisture. However, performance limits depend on specific temperature ranges and the chemicals involved: - High temperatures: The flange maintains structural integrity within normal PN16 service temperature ranges for carbon steel; extreme or prolonged exposure above typical service temperatures can reduce coating effectiveness and may accelerate metal oxidation or stress-related degradation. - Chemical exposure: The galvanization offers resistance to water, dilute acids and alkalis, and many common industrial fluids. It is not suitable for prolonged contact with strong acids, strong alkalis, chlorinated solvents, or highly corrosive/oxidizing chemicals, which can degrade the zinc coating and expose the carbon steel to rapid corrosion. For critical high-temperature or aggressive-chemical environments, selection should be confirmed against exact temperature and media specifications; stainless steel or specially coated alternatives may be recommended.

PN16 Fixed Carbon Steel Hose Flange, Type CNWF

All products, Low-pressure fittings and adapters/

Additional information

Material	CS – steel (cast iron)

The Fixed Flange PN16 type CNWF is a durable and reliable connection element designed specifically for industrial applications requiring secure hose fittings. Manufactured from high-quality carbon steel and finished with a protective galvanization layer, it ensures excellent resistance to corrosion and long-lasting performance even in demanding environments. Its unique “tail” design allows for easy and stable attachment to both rubber and plastic hoses, making it a versatile solution across various industries. The flange is engineered for straightforward installation using straps or clamp bands, providing a tight and dependable seal without the need for complex tools. With its robust construction and standardized PN16 compatibility, this component guarantees safe operation, reduced downtime, and enhanced efficiency in fluid transfer systems. Ideal for sectors such as chemical processing, construction, and manufacturing, the CNWF flange combines strength, practicality, and cost-effectiveness, offering a professional-grade solution for secure hose connections.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
AC-CNWF-015	Fixed flange PN16 DN15, for hose DN15, galvanized steel	16	-
AC-CNWF-020	Fixed flange PN16 DN20, for hose DN20, galvanized steel	20	-
AC-CNWF-025	Fixed flange PN16 DN25, for hose DN25, galvanized steel	25	-
AC-CNWF-032	Fixed flange PN16 DN32, for hose DN32, galvanized steel	32	-
AC-CNWF-040	Fixed flange PN16 DN40, for hose DN40, galvanized steel	40	-
AC-CNWF-050	Fixed flange PN16 DN50, for hose DN50, galvanized steel	50	-
AC-CNWF-065	Fixed flange PN16 DN65, for hose DN65, galvanized steel	65	-
AC-CNWF-080	Fixed flange PN16 DN80, for hose DN80, galvanized steel	80	-
AC-CNWF-100	Fixed flange PN16 DN100, for hose DN100, galvanized steel	100	-

The Fixed Flange PN16 type CNWF is a durable and reliable connection element designed specifically for industrial applications requiring secure hose fittings. Manufactured from high-quality carbon steel and finished with a protective galvanization layer, it ensures excellent resistance to corrosion and long-lasting performance even in demanding environments. Its unique “tail” design allows for easy and stable attachment to both rubber and plastic hoses, making it a versatile solution across various industries. The flange is engineered for straightforward installation using straps or clamp bands, providing a tight and dependable seal without the need for complex tools. With its robust construction and standardized PN16 compatibility, this component guarantees safe operation, reduced downtime, and enhanced efficiency in fluid transfer systems. Ideal for sectors such as chemical processing, construction, and manufacturing, the CNWF flange combines strength, practicality, and cost-effectiveness, offering a professional-grade solution for secure hose connections.