Guillemin Coupling Copper Alloy Corrugated Bushing | Suction & Discharge

The Guillemin symmetrical half-fitting with corrugated bushing, made of copper alloys (bronze or brass), is a robust junction piece for the most demanding fluid transfers. Better known as a firefighter fitting, this corrugated socket model is specifically designed to be permanently crimped on technical flexible hoses. Its copper alloy material gives it exceptional corrosion resistance, making it the equipment of choice for harsh environments and heavy-duty industrial applications.

Natural corrosion resistance

The use of copper alloys for this symmetrical fitting offers major mechanical advantages. Naturally resistant to oxidation, this fitting performs particularly well in humid environments or in contact with fluids that would quickly degrade standard aluminum. Its structural robustness allows it to meet the critical needs of sectors such as the petroleum, chemical and petrochemical industries. It is also widely used in the maritime sector, construction and industrial maintenance for its reliability and its ability to withstand repeated handling without altering its sealing spans.

Adaptability and crimping systems

The corrugated sleeve of this Guillemin fitting has been designed to guarantee maximum adhesion to the inner wall of technical pipes. This design allows for secure assembly with a wide variety of crimping systems: stamped skirts for industrial finishing, notched skirts for reinforced hold, trunnion clamps (2 or 3 parts) or technical strapping. This versatility ensures a dimensionally stable bond, whether the installation is intended for suction or discharge of liquids or powdery materials.

Assembly tips for optimal safety

To obtain a perfect seal and prevent any risk of accident under pressure, a rigorous assembly protocol is recommended. Present the two half-fittings facing each other. When connecting, the joints must be perfectly glued together. Then turn the locking rings (locks) by hand so that the guides (jaws) fit together properly. To finalize the operation and guarantee total locking against vibrations or water hammer, it is imperative to use a Guillemin key suitable for a safety tightening.

Technical characteristics

Areas of intervention

Thanks to its thermal resistance and hardness, this fitting is particularly effective in firefighting, agriculture (irrigation and fertilizer transfer), and the transport of powdery bulks. It is also found in steel mills and transport infrastructures where the passage of loaded fluids requires equipment that is not afraid of abrasion. Its symmetrical design allows for quick coupling without distinction of direction, facilitating emergency interventions and on-site maintenance.