Is the Straight Pneumatic Hose Coupling, Twisted Type C3 compatible with soft plastic hoses and safe at 18 bar working pressure?

Yes. The Straight Pneumatic Hose Coupling, Twisted Type C3 is specified for use with hoses made of soft plastics: the hose is pushed onto the fitting and sealed by tightening the nut for a secure, leak‑proof connection. It is manufactured from nickel‑plated brass for high corrosion and wear resistance and is rated for working pressures up to 18 bar, so it is suitable and safe for use at that pressure in normal industrial and professional applications.

Can the Straight Pneumatic Hose Coupling, Twisted Type C3 withstand chemical exposure or aggressive fluids when used with soft plastic hoses?

The Straight Pneumatic Hose Coupling, Twisted Type C3 is made from high‑quality nickel‑plated brass, which provides good general chemical and corrosion resistance compared with uncoated metals. However, compatibility with aggressive chemicals depends primarily on the specific fluid and the soft plastic hose material used. Soft plastics (e.g., PVC, polyurethane, rubber blends) vary widely in resistance: some oils, solvents, acids or alkalis can swell, soften or degrade them, compromising the seal and the connection even if the brass fitting itself remains intact. Therefore: the coupling’s brass construction offers robustness against corrosion and demanding conditions, but it cannot guarantee resistance to all chemicals when paired with soft plastic hoses. For applications involving aggressive fluids, verify chemical compatibility for both the hose material and the nickel‑plated brass surface with the specific chemicals, temperatures and concentrations in your system. If needed, choose hoses and fittings specifically rated for the chemicals involved or consult the manufacturer for certified chemical compatibility.

Straight Pneumatic Hose Coupling, Twisted Type C3

All products, Tubular fittings/

Additional information

Material	B – brass (bronze)

The straight socket coupling type C3 is a reliable and durable solution for securely connecting hoses made of soft plastics. Designed for quick and efficient installation, the hose is simply pushed onto the fitting and firmly sealed by tightening the nut, ensuring a stable and leak‑proof connection. Manufactured from high‑quality nickel‑plated brass, the coupling offers excellent resistance to corrosion, mechanical wear, and demanding working conditions, making it ideal for both industrial and professional applications. With a working pressure of up to 18 bar, it guarantees dependable performance even in intensive operations, providing users with confidence in safety and long‑lasting functionality. This robust connector combines ease of use with superior strength, delivering a practical and efficient choice for modern hose systems.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
MW-2303001	Straight connector C3, hose 6/4 - hose 6/4	-	16
MW-2303002	Straight connector C3, hose 8/6 - hose 8/6	-	16
MW-2303003	Straight connector C3, hose 10/8 - hose 10/8	-	16
MW-2303004	Straight connector C3, hose 12/10 - hose 12/10	-	16

The straight socket coupling type C3 is a reliable and durable solution for securely connecting hoses made of soft plastics. Designed for quick and efficient installation, the hose is simply pushed onto the fitting and firmly sealed by tightening the nut, ensuring a stable and leak‑proof connection. Manufactured from high‑quality nickel‑plated brass, the coupling offers excellent resistance to corrosion, mechanical wear, and demanding working conditions, making it ideal for both industrial and professional applications. With a working pressure of up to 18 bar, it guarantees dependable performance even in intensive operations, providing users with confidence in safety and long‑lasting functionality. This robust connector combines ease of use with superior strength, delivering a practical and efficient choice for modern hose systems.