Is the Quick-connection socket DN7.8 with valve, threaded, nickel-plated brass, series 25KA suitable for use with both compressed air and hydraulic fluids at 35 bar?

Yes. Quick-connection socket DN7.8 with valve, threaded, nickel-plated brass, series 25KA is suitable for use with both compressed air and hydraulic fluids at up to 35 bar. The product description explicitly lists versatile applications for compressed air, liquids, and gases and specifies a working pressure of 35 bar. Materials (nickel-plated brass body, hardened nickel-plated steel sleeve, nickel-plated zinc alloy valve, stainless steel internal parts) and NBR sealing support compatibility with typical compressed air and many hydraulic fluids within the stated operating temperature range (-20Â°C to +100Â°C). Caveat: verify fluid compatibility with NBR seals and nickel-plated surfaces for your specific hydraulic fluid (e.g., some phosphate ester or petroleum-based fluids, additives, or aggressive fluids may require different seal materials). If in doubt, confirm with the manufacturer or provide the exact hydraulic fluid specification for final confirmation.

Can the Quick-connection socket DN7.8 with valve, threaded, nickel-plated brass, series 25KA be used with corrosive gases or aggressive liquids within its -20Â°C to +100Â°C range?

Quick-connection socket DN7.8 with valve, threaded, nickel-plated brass, series 25KA: Not recommended for corrosive gases or aggressive liquids. Although the body and some components are nickel-plated brass/steel and stainless steel, the valve and other parts (nickel-plated zinc alloy) plus NBR seals are vulnerable to chemical attack by aggressive media. Corrosive substances can degrade plating, base metals and NBR, causing leaks or failure even within -20Â°C to +100Â°C. For corrosive gases/fluids choose fittings specified for chemical compatibility (materials like stainless steels 316/316L, PTFE/Viton seals) and consult manufacturer for media compatibility and certification.

Quick-connection socket DN7.8 with valve, threaded, nickel-plated brass, series 25KA

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

Additional information

Material	B – brass (bronze)

Quick coupling socket with valve DN7.8, with external BSPT thread or internal BSP thread, featuring a durable construction and a very high flow coefficient, thanks to the ULTRA-FLOW valve. Interchangeable with all quick couplings according to Eurostandard DN7.2 from other manufacturers. Versatile applications in the industry for compressed air, liquids, and gases. Performance: 1800 l/min (Pe = 6 bar, Δp=0.5 bar – air), 33.5 l/min (Δp=1 bar, Kv=2.0 – water). Working pressure: 35 bar. Material: nickel-plated brass (body), hardened nickel-plated steel (sleeve), nickel-plated zinc alloy (valve), 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-25KAAK13MPN	Quick coupling socket 25KA DN7.8, GZ 1/4" BSPT, nickel-plated brass, NBR	-	35	In stock	Enquiry
RE-25KAAK17MPN	Quick coupling socket 25KA DN7.8, GZ 3/8" BSPT, nickel-plated brass, NBR	-	35	In stock	Enquiry
RE-25KAAK21MPN	Quick coupling socket 25KA DN7.8, GZ 1/2" BSPT, nickel-plated brass, NBR	-	35	In stock	Enquiry
RE-25KAIW13MPN	Quick coupling socket 25KA DN7.8, GW 1/4" BSP, nickel-plated brass, NBR	-	35	In stock	Enquiry
RE-25KAIW17MPN	Quick coupling socket 25KA DN7.8, GW 3/8" BSP, nickel-plated brass, NBR	-	35	In stock	Enquiry
RE-25KAIW21MPN	Quick coupling socket 25KA DN7.8, GW 1/2" BSP, nickel-plated brass, NBR	-	35	In stock	Enquiry

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Quick coupling socket with valve DN7.8, with external BSPT thread or internal BSP thread, featuring a durable construction and a very high flow coefficient, thanks to the ULTRA-FLOW valve. Interchangeable with all quick couplings according to Eurostandard DN7.2 from other manufacturers. Versatile applications in the industry for compressed air, liquids, and gases. Performance: 1800 l/min (Pe = 6 bar, Δp=0.5 bar – air), 33.5 l/min (Δp=1 bar, Kv=2.0 – water). Working pressure: 35 bar. Material: nickel-plated brass (body), hardened nickel-plated steel (sleeve), nickel-plated zinc alloy (valve), stainless steel (spring, balls, and ring). Sealing: NBR. Operating temperature: from -20°C to +100°C.