Is the Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA compatible only with series 25KA hardened steel plugs for safe operation?

Yes. Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA is guaranteed safe for operation only when used with plugs made of hardened steel (series 25KA). The product description explicitly states that safe operation of the coupling can only be ensured with series 25KA hardened steel plugs.

Can the Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA be used with non-hardened plugs in low-pressure applications?

Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA should not be used with non-hardened plugs even in low-pressure applications. The product description explicitly states safe operation is guaranteed only with plugs made of hardened steel (series 25KA). Using non-hardened plugs may cause premature wear, malfunction or safety hazards despite lower pressure.

Does the Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA require specific maintenance intervals for optimal performance?

Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA does not list a mandated maintenance interval in the provided description, but for optimal performance and safety the following maintenance guidelines are recommended: - Inspect visually before each use for damage, wear, corrosion or contamination on the socket body, sleeve, sealing (NBR) and connection threads. - Perform functional checks weekly or after heavy use: confirm smooth oneâhand operation, secure locking with plugs (series 25KA) and proper valve closure. - Replace seals (NBR) and worn components at first signs of leakage, cracking or loss of elasticity; check more frequently in abrasive, wet or chemically aggressive environments. - Lubricate moving parts lightly with a compatible lubricant as part of routine servicing (avoid oils that degrade NBR). - Carry out a thorough inspection and component check (springs, balls, ring, threads, nickelâplated parts, QPQ surface) every 3â12 months depending on duty cycle, operating pressure (up to 35 bar) and environmental conditions; increase frequency under high cycle rates or harsh conditions. - Use only hardened steel plugs (series 25KA) to guarantee safe operation; mismatched plugs accelerate wear. - Replace the coupling if corrosion or wear compromises locking, flow (performance) or pressure rating. Adjust intervals to actual usage intensity and environment; keep records of inspections and replace parts proactively to maintain the stated performance (2020 l/min air at 6 bar, working temp â20Â°C to +100Â°C).

Quick-connection socket DN7.8 with valve, threaded, hardened steel, series 1600KA

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

Additional information

Material	CS – steel (cast iron)

Quick coupling socket with valve DN7.8, with external BSPT thread or internal BSP thread, series 1600KA – belongs to the premium class with increased performance, designed primarily for compressed air, especially where high efficiency is required in a small coupling size. The socket body is made of hardened steel through the process of carbonitriding in a salt bath QPQ, increasing resistance to wear and corrosion (black color). Operated with one hand. Safe operation of the coupling can only be guaranteed when used with plugs made of hardened steel (series 25KA). Performance: 2020 l/min (Pe = 6 bar, Δp=0.5 bar – air), 43.3 l/min (Δp=1 bar, Kv=2.6 – water). Working pressure: 35 bar. Material: hardened QPQ steel (socket body), nickel-plated brass (connection part and sleeve), stainless steel (spring, balls, and ring). Sealing: NBR. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-1600KAAK13SPN	Quick coupling socket 1600 DN7.8, GZ 1/4" BSPT, NBR	-	35	In stock	Enquiry
RE-1600KAAK17SPN	Quick coupling socket 1600 DN7.8, GZ 3/8" BSPT, NBR	-	35	In stock	Enquiry
RE-1600KAAK21SPN	Quick coupling socket 1600 DN7.8, GZ 1/2" BSPT, NBR	-	35	In stock	Enquiry
RE-1600KAIW13SPN	Quick coupling socket 1600 DN7.8, GW 1/4" BSP, NBR	-	35	In stock	Enquiry
RE-1600KAIW17SPN	Quick coupling socket 1600 DN7.8, GW 3/8" BSP, NBR	-	35	In stock	Enquiry
RE-1600KAIW21SPN	Quick coupling socket 1600 DN7.8, G 1/2" BSP, NBR	-	35	In stock	Enquiry

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Quick coupling socket with valve DN7.8, with external BSPT thread or internal BSP thread, series 1600KA – belongs to the premium class with increased performance, designed primarily for compressed air, especially where high efficiency is required in a small coupling size. The socket body is made of hardened steel through the process of carbonitriding in a salt bath QPQ, increasing resistance to wear and corrosion (black color). Operated with one hand. Safe operation of the coupling can only be guaranteed when used with plugs made of hardened steel (series 25KA). Performance: 2020 l/min (Pe = 6 bar, Δp=0.5 bar – air), 43.3 l/min (Δp=1 bar, Kv=2.6 – water). Working pressure: 35 bar. Material: hardened QPQ steel (socket body), nickel-plated brass (connection part and sleeve), stainless steel (spring, balls, and ring). Sealing: NBR. Operating temperature: from -20°C to +100°C.