Express Fitting with Female Threaded End, No Seal, Brass

Ezfitt Express Fitting with Female Threaded End, No Seal, Brass (Reference: 711) represents the excellence of professional hydraulic and pneumatic connectors. Designed to meet the strict requirements of the French standard NF E29-573, this heavy-duty series fitting offers a reliable and durable connection solution for your industrial and domestic installations. Its forged brass construction provides exceptional resistance to corrosion and mechanical stress.

Applications and Use Cases

This Ezfitt Express fitting is perfectly suited for cold water and compressed air installations across many sectors. Plumbing professionals, industrial maintenance technicians and irrigation specialists use it to make fast and secure connections on distribution networks. Its threaded end design allows direct connection to threaded components, eliminating the need for intermediate parts.

In industry, this fitting is used on cooling circuits, high-pressure cleaning systems and workshop pneumatic installations. For home users, it is ideal for automatic irrigation systems, domestic compressor connections and swimming pool installations. Its ability to withstand temperatures from -10°C to +70°C makes it usable in all seasons, even in the most demanding environments.

Technical Specifications and Innovation

The French standard NF E29-573 imposes strict quality criteria that this fitting scrupulously meets. The 41 mm claw spacing guarantees perfect compatibility with all Express fittings of the same standard, ensuring total interchangeability on your existing installations. This standardisation allows professionals to mix different brands without any risk of incompatibility.

The forged brass used in its manufacture offers superior mechanical strength compared to traditional cast brass. This hot forging process densifies the metal structure and eliminates porosity, ensuring perfect sealing under pressure. The machined ribbed tail with collar facilitates assembly with a clamp and ensures optimal mechanical hold.

The ISO 228-1 gas thread (formerly parallel BSP) complies with international cylindrical threading standards. This standard ensures sealing by metal-to-metal contact rather than by the thread itself, requiring the use of an appropriate seal or sealing compound. The nominal pressure of PN 10 bar allows its use on most standard domestic and industrial networks.

Installation and Use

Installing this Express fitting is carried out in two main steps. First, screw the threaded end onto the element to be connected using an appropriate sealing compound (jointing paste, PTFE tape or hemp depending on the application). Tighten firmly with a wrench, respecting the recommended torque to avoid damaging the thread.

The second step consists of pushing the corresponding female element firmly until the characteristic click is heard. The internal claws retract and then automatically reposition to lock the connection. To disconnect, simply pull the release sleeve while withdrawing the inserted element.

Maintenance is limited to regular cleaning of the contact surfaces and checking the condition of the claws. In case of intensive use, periodically check the sealing of connections and replace seals if necessary. Avoid violent impacts and excessive twisting that could damage the locking mechanism.

Expert Tips and Product Synergies

To optimise the performance of this Express fitting, pair it with the clamp reference 515/1515 specially designed for its collar. This combination guarantees a perfect fixing on flexible and semi-rigid hoses. Prefer stainless steel clamps for outdoor or corrosive applications.

Do not exceed the nominal pressure of 10 bar, particularly during leak tests which can generate momentary overpressures. For high-pressure applications, opt for extra-heavy series fittings. In aggressive environments (sea water, chemicals), check the compatibility of brass with the fluid being conveyed.

Professionals recommend keeping a stock of fittings in various diameters to respond quickly to maintenance needs. The NF E29-573 standardisation allows brands to be mixed without risk. Also consider reducer fittings to adapt different diameters and caps to temporarily plug circuits during interventions.

Technical Specifications