Can Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series be disconnected under residual pressure while meeting ISO 4414 and EN 983 safety requirements?

Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series can be disconnected under residual pressure while meeting ISO 4414 and EN 983 safety requirements only if the following conditions are met: 1) It is used with Rectus plugs made of hardened steel type 25KA (as specified). 2) The application stays within rated parameters (air, Pe = 6 bar, Îp = 0.5 bar performance; max working pressure 12 bar; operating temperature â20Â°C to +60Â°C). 3) It is not used for direct connection of vibrating pneumatic tools (to avoid premature wear that could compromise safe disconnection). The product description states the sockets are specially designed for safe, non-pressurized disconnection compliant with ISO 4414 and EN 983, but this compliance depends on correct mating plug (25KA), proper installation, maintenance and adherence to the performance limits. If any of these conditions are not met, safe disconnection under residual pressure cannot be guaranteed.

Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series

Q: Does the Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series require Rectus 25KA plugs for safe non-pressurized disconnection?

Yes. The Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series is specifically designed for safe non-pressurized disconnection compliant with ISO 4414 and EN 983. To ensure this functionality you must use only Rectus plugs made of hardened steel type 25KA.

Q: Are there special maintenance steps for the Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series?

Yes. Quick-connection socket DN7.4 Eurostandard with valve, with hose connection, nickel-plated brass, 26KE series requires only basic, specific maintenance to preserve safe non-pressurized disconnection and longevity: - Use only Rectus hardened steel plugs type 25KA to ensure proper sealing and safe disconnection; other plugs may impair function and safety. - Avoid direct connection of pneumatic tools; vibrations and oscillations will reduce coupling life. - Regularly inspect sealing (NBR) for wear, cracks or hardening; replace seals if compromised. - Check valve and valve seat (brass) for contamination, wear or debris; clean with suitable solvent compatible with brass and NBR. - Inspect pins, locking pins (AISI 420) and spring (AISI 301) for corrosion, damage or loss of elasticity; replace damaged components. - Clean external threads and hose connection (nickel-plated brass) and ensure hose fitting is secure and leak-free. - Verify operating performance periodically under recommended conditions (air, Pe up to 6 bar typical flow 1300 l/min, working pressure up to 12 bar) and confirm pressure drop stays within acceptable range (Îp â 0.5 bar at spec flow). - Avoid exposure beyond temperature range (-20Â°C to +60Â°C) and aggressive chemicals that attack brass, NBR or steels. - Lubricate moving parts sparingly with a lubricant compatible with NBR seals and the materials used; avoid oil/greases that swell NBR. - Perform leak tests after maintenance or reassembly. Following these steps preserves the safety features compliant with ISO 4414 and EN 983 and extends service life.

All products, General-purpose low-pressure quick couplings/

Additional information

Material	CS – steel (cast iron)

Quick coupling socket with a popular Eurostandard DN7.4 profile with a valve, with a hose fitting, primarily intended for air. The sockets are specially designed for safe, non-pressurized disconnection of the quick coupling, compliant with ISO 4414 and EN 983. To ensure such functionality, only Rectus plugs made of hardened steel type 25KA should be used. Do not use for direct connection of pneumatic tools, as vibrations and oscillations will shorten the lifespan of the coupling. Performance: 1300 l/min, Pe = 6 bar, Δp = 0.5 bar – air. Working pressure: 12 bar. Material: nickel-plated brass (body, threaded part), brass (valve), AISI 301 steel (spring), AISI 420 steel (pins and locking pins). Sealing: NBR. Operating temperature: from -20°C to +60°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-26KETF06MPN	Quick coupling socket 26KE DN7.4, for 6 mm hose, nickel-plated brass, NBR	6	12	In stock	Enquiry
RE-26KETF08MPN	Quick coupling socket 26KE DN7.4, for 8 mm hose, nickel-plated brass, NBR	8	12	In stock	Enquiry
RE-26KETF09MPN	Quick coupling socket 26KE DN7.4, for 9 mm hose, nickel-plated brass, NBR	8	12	In stock	Enquiry
RE-26KETF10MPN	Quick coupling socket 26KE DN7.4, for 10 mm hose, nickel-plated brass, NBR	10	12	In stock	Enquiry
RE-26KETF13MPN	Quick coupling socket 26KE DN7.4, for hose 13 mm, nickel-plated brass, NBR	12	12	In stock	Enquiry

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Quick coupling socket with a popular Eurostandard DN7.4 profile with a valve, with a hose fitting, primarily intended for air. The sockets are specially designed for safe, non-pressurized disconnection of the quick coupling, compliant with ISO 4414 and EN 983. To ensure such functionality, only Rectus plugs made of hardened steel type 25KA should be used. Do not use for direct connection of pneumatic tools, as vibrations and oscillations will shorten the lifespan of the coupling. Performance: 1300 l/min, Pe = 6 bar, Δp = 0.5 bar – air. Working pressure: 12 bar. Material: nickel-plated brass (body, threaded part), brass (valve), AISI 301 steel (spring), AISI 420 steel (pins and locking pins). Sealing: NBR. Operating temperature: from -20°C to +60°C.