Can Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series be safely disconnected under pressure and is it compliant with ISO 4414/EN 983?

Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series cannot be safely disconnected while under pressure unless the mating plug is the specified hardened steel Rectus 25KA type. According to the product description, these sockets are specially designed for safe, pressure-free disconnection and are compliant with ISO 4414 and EN 983, but that safe disconnection function depends on using the correct plug (Rectus 25KA). Do not attempt to disconnect with other plugs or with pneumatic tools directly attached; vibrations/oscillations and incompatible plugs can prevent pressure-free disconnection and shorten/service life. Operating and performance data: 1300 l/min, nominal pressure Pe = 6 bar, Îp = 0.5 bar (air); maximum working pressure 12 bar; materials and seals as specified; temperature range -20Â°C to +60Â°C.

Can Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series be used directly with pneumatic tools despite vibration?

No - Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series should not be used for direct connection of pneumatic tools despite vibration. The product description explicitly warns against direct connection to tools: only Rectus hardened steel plugs type 25KA must be used to ensure safe, pressure-free disconnection per ISO 4414 and EN 983. Direct tool connection and exposure to vibrations/oscillations will shorten coupling lifespan. Technical specs: 1300 l/min at Pe=6 bar (Îp=0.5 bar), working pressure 12 bar, materials nickel-plated brass/brass/AISI steels, NBR seals, operating â20Â°C to +60Â°C.

What maintenance is required to ensure long-term sealing and performance of Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series?

To ensure long-term sealing and reliable performance of Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series, follow these maintenance guidelines: 1. Use compatible plugs only - Always pair the socket with Rectus plugs made of hardened steel type 25KA. Using other plugs risks improper sealing and premature wear. 2. Regular inspection - Inspect externally for corrosion, damage to threads, body, valve and locking pins. - Check sealing (NBR) for cuts, hardening, swelling or compression set; replace seals if any defect. 3. Cleaning - Keep contact surfaces clean and free of dirt, debris and dried lubricants. Blow out air lines periodically (max Pe = 6 bar for rated performance; working pressure up to 12 bar only if system allows). - Avoid aggressive solvents that damage NBR; use mild detergents or isopropyl alcohol sparingly. 4. Lubrication - Lightly lubricate moving metal-to-metal parts (pins, locking mechanism, spring) with a compatible pneumatic-grade lubricant that does not attack NBR. Avoid over-lubrication which attracts dust. 5. Avoid vibration-induced use - Do not use the socket for direct connection of pneumatic tools. Vibrations and oscillations shorten coupling life and compromise sealing. 6. Functional tests - Periodically connect and disconnect under no-load, pressure-free conditions to verify smooth operation and safe pressure release (compliant with ISO 4414 / EN 983). - Verify leakage rate under operating conditions (expected performance: 1300 l/min flow at Pe = 6 bar, Îp = 0.5 bar). Excessive leakage indicates service or replacement needed. 7. Temperature and pressure limits - Operate within -20Â°C to +60Â°C and within the specified pressures. Prolonged exposure beyond these limits can degrade NBR seals and brass components. 8. Replacement intervals - Replace NBR seals and worn components at first sign of leakage, excessive play, or wear. Replace the entire socket if body, valve or locking pins show significant damage or corrosion. Following these steps will help maintain sealing integrity and long-term performance of Quick-connection socket DN7.4 Eurostandard with valve, threaded, nickel-plated brass, 26KE series.

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

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

Additional information

Material	CS – steel (cast iron)
Standard length [m]	120, 2

Quick coupling socket with a popular Eurostandard profile DN7.4 with a valve, featuring external or internal BSP threads, primarily designed for air. The sockets are specially designed for safe, pressure-free 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-26KEAW13MPN	Quick coupling socket 26KE DN7.4, GZ 1/4" BSP, nickel-plated brass, NBR	-	12	In stock	Enquiry
RE-26KEAW17MPN	Quick coupling socket 26KE DN7.4, GZ 3/8" BSP, nickel-plated brass, NBR	-	12	In stock	Enquiry
RE-26KEAW21MPN	Quick coupling socket 26KE DN7.4, GZ 1/2" BSP, nickel-plated brass, NBR	-	12	In stock	Enquiry
RE-26KEIW13MPN	Quick coupling socket 26KE DN7.4, 1/4" BSP thread, nickel-plated brass, NBR	-	12	In stock	Enquiry
RE-26KEIW17MPN	Quick coupling socket 26KE DN7.4, GW 3/8" BSP, nickel-plated brass, NBR	-	12	In stock	Enquiry
RE-26KEIW21MPN	Quick coupling socket 26KE DN7.4, 1/2" BSP thread, nickel-plated brass, NBR	-	12	In stock	Enquiry

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Quick coupling socket with a popular Eurostandard profile DN7.4 with a valve, featuring external or internal BSP threads, primarily designed for air. The sockets are specially designed for safe, pressure-free 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.