Coupling 18 mm - thin-walled galvanized carbon steel crimped PC5270 0180000

Application and Construction of the Press-Fit Coupling

This component is designed for the permanent joining of steel pipe sections in water and heating installations where leak-tightness is required without welding or threading. Thanks to the press-fit system, installation is fast and repeatable, which is crucial when working in hard-to-reach areas or with large numbers of connections. The coupling is intended for pipes with an outer diameter of 18 mm, making it a versatile component for both domestic and small-diameter industrial installations.

A key structural feature is the material of manufacture – carbon (alloyed) steel, which provides adequate mechanical strength against tensile and bending loads. The surface of the component has undergone electrolytic galvanizing, forming a protective barrier against corrosion in humid environments. It is worth noting that despite the galvanization, the base material is steel, not brass or stainless steel, which must be considered when selecting it for specific media transported within the installation.

Operational Parameters and Installation Guidelines

When operating with liquids at ambient temperature (20°C), the coupling withstands a working pressure of up to 16 bar. This is a standard value for most water supply and heating installations in residential and public buildings. The component does not have built-in seals within the body; leak-tightness is achieved through deformation of the pipe material during pressing, eliminating the risk of rubber aging or drying out over time.

Installation requires a dedicated press tool with the appropriate head for 18 mm diameter. The connection is single-piece and simple, meaning there are no moving parts or drain valves – the coupling serves solely to join two pipe sections. The total length of the component is 54 mm, and the presence of a stop flange facilitates pipe centering before crimping and visual control of the pipe insertion depth into the fitting prior to pressing.

Compliance with Standards and Application Limitations

The product does not carry UL, FM, or LPCB certifications, meaning its application should be limited to installations compliant with national building and sanitary standards, rather than systems requiring specialized fire-protection certifications or American safety standards. The sealing material (if applicable to the system) is EPDM rubber; however, in this steel coupling model, the critical factors are the quality of the steel and the galvanization.

Selection of this component is based on its 18 mm dimensions and steel material with an electrolytic galvanized coating, which withstands a working pressure of up to 16 bar at 20°C. The total length of the fitting is 54 mm, and its simple shape along with the stop flange facilitate precise press-fit installation without the need for additional seals or drain valves. The absence of UL or FM certifications suggests use in standard sanitary installations compliant with local building regulations, rather than in systems requiring specialized fire-protection approval or for the American market.

It should be noted that the product is not intended for chemically aggressive media or for applications requiring FM or UL certification. For gas installations or specialized fire-suppression systems, verification of compliance with the specific project requirements or industry standards will be necessary.