Is the Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA suitable for 35 bar compressed air systems?

Yes. The Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA is suitable for 35 bar compressed air systems. The product description explicitly states a working pressure of 35 bar, is designed primarily for compressed air, uses hardened nickel-plated steel construction, and meets ISO 6150B profile standards. Ensure compatible thread type (external BSPT or internal BSP) and confirm system temperature range (-20Â°C to +100Â°C) fits your application.

Can the Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA be used with BSPP or BSPT fittings interchangeably?

Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA cannot be used interchangeably with BSPP and BSPT fittings. The product is offered with either external BSPT (tapered) thread or internal BSPP (parallel) thread; these thread types have different geometries and sealing methods (BSPT seals by thread taper, BSPP requires a gasket or O-ring). Mixing them risks poor fit, leaks, or damage. Always match the connectorâs specified thread type (BSPT or BSPP) to the mating fitting or use a proper adapter designed for converting between BSPT and BSPP.

Does the Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA resist corrosion in humid environments?

Quick connector DN5.5 without valve, threaded, nickel-plated steel, series 1400KA / 1423KA: Nickel plating improves corrosion resistance compared with bare steel and provides acceptable protection for many humid environments, especially for compressed-air applications. However, the base material is hardened steel, which is susceptible to corrosion if the plating is damaged, worn or compromised by abrasion, mechanical stress, or prolonged exposure to aggressive or highly saline atmospheres. Operating temperature range (-20Â°C to +100Â°C) and working pressure (35 bar) do not affect the coatingâs basic corrosion protection. In short: the nickel plating offers moderate corrosion resistance in typical humid, non-corrosive environments, but the connector is not stainless steel; for long-term use in very humid, marine, saline or chemically aggressive conditions, a corrosion-resistant alternative (e.g., stainless steel or special coatings) is recommended.

Plug quick coupling DN5.5 without valve, with a thread, steel nickel-plated, series 1400KA / 1423KA

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

Additional information

Material	CS – steel (cast iron)

Plug quick coupling without valve, DN5.5 o profile compliant with with the standard ISO 6150B (A-A-59439, MIL C-4109), series 1400KA / 1423KA, with a BSPT male thread or with a thread internal BSP. high quality plug, versatile used in industry primarily for compressed air. Working pressure: 35 bar. Material: steel hardened, nickel-plated. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-23SFAK10SXN	Quick coupling plug 23 DN5.5, 1/8" BSPT male, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFAK13SXN	Quick coupling plug 23 DN5.5, 1/4" BSPT male, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFAK17SXN	Quick coupling plug 23 DN5.5, 3/8" BSPT male, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFAK21SXN	Quick coupling plug 23 DN5.5, 1/2" BSPT male, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFIW10SXN	Quick coupling plug 23 DN5.5, 1/8" BSP female, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFIW13SXN	Quick coupling plug 23 DN5.5, 1/4" BSP female, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFIW17SXN	Quick coupling plug 23 DN5.5, 3/8" BSP female, nickel-plated steel	-	35	In stock	Enquiry
RE-23SFIW21SXN	Quick coupling plug 23 DN5.5, 1/2" BSP female, nickel-plated steel	-	35	In stock	Enquiry

Do you need a larger quantity of products or a bespoke quote?

Call us: +48 61 653 02 22 or email us: tubes@tubes-international.com

SEND ENQUIRY

Plug quick coupling without valve, DN5.5 o profile compliant with with the standard ISO 6150B (A-A-59439, MIL C-4109), series 1400KA / 1423KA, with a BSPT male thread or with a thread internal BSP. high quality plug, versatile used in industry primarily for compressed air. Working pressure: 35 bar. Material: steel hardened, nickel-plated. Operating temperature: from -20°C to +100°C.