Guillemin Symmetrical Half Coupling, Fire Hose, with Lock, Female Threaded Socket in Aluminium

The female threaded symmetrical Guillemin half coupling in aluminium, fitted with its locking mechanism, is the standard solution for securing your fluid transfers. Designed to be mounted on any male threaded outlet, this "fire hose" coupling combines the lightness of aluminium with proven mechanical robustness. Made in France, this coupling benefits from high-precision casting and rigorous machining, guaranteeing total reliability for professionals in industry and agriculture.

Aluminium: Lightness and Industrial Performance

The choice of aluminium for this symmetrical coupling offers a major advantage in terms of handling, facilitating repeated connection and disconnection operations in the field. Despite its reduced weight, this aluminium alloy is designed to withstand pressure stresses and impacts. Its BSP (British Standard Pipe) threading allows immediate integration on your pumps, valves and manifolds. The mastery of French manufacturing ensures perfect jaw geometry, avoiding any mechanical play and guaranteeing superior equipment longevity.

Secure Locking for Suction and Discharge

This model integrates a 360° rotating lock that controls the locking jaws (guides). This mechanism allows two half couplings to be joined in a tamper-proof manner, whether in suction or discharge mode. It is particularly recommended for fire fighting, agricultural irrigation, steel mills and industrial maintenance. Its ability to convey liquids or bulk powdered materials, while remaining easy to handle thanks to its aluminium body, makes it an essential standard on construction sites.

Assembly Tips and Sealing

To install the female threaded part, the use of PTFE tape or a suitable sealant paste is recommended for a perfect connection with your male thread. When symmetrically coupling, present the two half couplings face to face, ensuring that the NBR seals (factory fitted) are clean and in contact. Turn the lock by hand to engage the jaws. For optimum safety, particularly under high pressure, we recommend completing the tightening with a suitable Guillemin wrench.

Technical Specifications

French Craftsmanship and Durability

Choosing this aluminium coupling made in France means opting for a product whose traceability and quality of finish are beyond reproach. Unlike low-grade alloys, this aluminium offers excellent resistance to outdoor conditions and intensive handling. Whether you work in the oil, chemical or pharmaceutical sector, this female half coupling with lock ensures consistent sealing and reduces your corrective maintenance needs.