Xpress Closing Cap

Xpress Multitanks Closing Cap (Reference: 513) represents the excellence of French design in hydraulic and pneumatic fittings. This heavy-duty cap strictly complies with French standard NF E29-573, ensuring perfect compatibility with all Express fittings from the same standard. Its optimised Xpress design makes it an essential component for sealing your water and compressed air circuits.

Applications and Fields of Use

The Xpress closing cap finds its place in multiple industrial and domestic applications. Professionals in industry, agriculture and construction use it to secure pressurised water circuits, compressed air networks and temporary hydraulic installations. In the agricultural sector, it allows you to hermetically seal irrigation pipes at the end of the season or during maintenance.

Private users appreciate its ease of use for automatic irrigation, high-pressure cleaning systems and workshop pneumatic installations. Its ability to withstand a working pressure of 10 bar makes it perfectly suited to demanding applications while maintaining optimal safety for the user.

Technical Characteristics and Innovation

The design of the Xpress cap is based on high-quality forged brass, a material chosen for its exceptional corrosion resistance and long-term durability. The forging process ensures superior metal density and eliminates porosity, thereby guaranteeing perfect sealing under pressure.

The type A lip seal in NBR (Nitrile Butadiene Rubber) is at the heart of the innovation. This specialised seal with a 15mm bore diameter ensures optimal dynamic sealing thanks to its sealing lip that adapts to pressure variations. Its operating temperature range of -10°C to +70°C allows use in all seasons, withstanding winter frost as well as summer heat.

The 41mm claw spacing perfectly complies with the NF E29-573 standard, ensuring universal compatibility with all Express fittings of the same standard. This standardised dimension guarantees a secure assembly and reliable claw locking.

Installation and Practical Use

Installing the Xpress cap requires no specific tools. Simply insert the cap into the female end of the Express fitting until the claws click into place automatically. The claw locking system ensures secure retention even under high pressure.

For removal, the circuit must be depressurised beforehand to avoid any fluid projection. By simultaneously pushing the claws outward, the cap releases easily. This operation can be performed by hand without risk of damage.

Maintenance of the cap is minimal but essential to preserve its performance. Regular cleaning with clean water removes limescale deposits or abrasive particles. It is recommended to periodically check the condition of the NBR seal and replace it if visibly worn to maintain optimal sealing.

Expert Tips and Usage Optimisation

To maximise the longevity of your Xpress cap, it is advisable to store caps in a dry place and away from UV when not in use. Prolonged exposure to sunlight can alter the properties of the NBR seal and reduce its flexibility.

Combining with other Multitanks Express fittings allows you to create modular systems that are particularly efficient. Combine this cap with straight connectors, tees or Express elbows to create quickly dismantlable temporary installations. This modular approach is particularly appreciated in events, seasonal agriculture and construction sites.

A professional tip is to maintain a stock rotation of caps to avoid premature seal ageing. Discreetly mark your caps with the commissioning date to optimise their renewal. Absolutely avoid sudden thermal shocks that could weaken the brass and compromise sealing.

When using with aggressive fluids, check beforehand the chemical compatibility of NBR with your specific application. Although resistant to most oils and hydrocarbons, NBR can be sensitive to certain solvents.

Technical Specifications