Is the Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel suitable for steam service at 75 bar?

Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel . based on the provided specifications, it is rated for steam service and lists steam among intended media, with a working pressure up to 75 bar for sizes 1/8", 1/4", and 3/8". However, suitability for steam at 75 bar depends on temperature and sealing materials: the operating temperature range given is -20Â°C to +80Â°C (NBR). Saturated steam at high pressures (e.g., 75 bar) has temperatures far above +80Â°C, so the NBR seals and specified temperature limit make the coupling unsuitable for high-pressure steam at its saturation temperature. If the steam is superheated but kept â¤80Â°C (unlikely at 75 bar), it could be acceptable, but this is unrealistic. Recommendation: do not use Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel for saturated steam at 75 bar. Confirm with manufacturer for versions with high-temperature seals (e.g., FKM, PTFE) or higher temperature ratings if you require steam service at that pressure.

Can Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel be used with hydraulic oils at 75 bar?

Yes. Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel can be used with hydraulic oils at 75 bar only for sizes rated to 75 bar (1/8", 1/4", 3/8"). Ensure seals compatible with hydraulic oil (NBR specified) and operating temperature within -20Â°C to +80Â°C. For larger sizes with lower working pressures (1/2" and above) do not use at 75 bar. Confirm system compatibility, assembly torque, and conduct pressure testing before service.

Can Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel be used with corrosive chemicals?

Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel. use with caution; not universally suitable for corrosive chemicals. Why: - Material is chrome-plated carbon steel. Chrome plating improves corrosion resistance versus bare carbon steel but is not as resistant as stainless steel or specialized alloys/coatings against many aggressive chemicals. - Product description lists âchemicalsâ among intended media, indicating compatibility with some chemical substances at specified pressures and temperatures. However, âchemicalsâ is broad; compatibility depends on the specific chemical, its concentration, temperature, and exposure time. - Seals are NBR (nitrile rubber) per the operating temperature range (â20Â°C to +80Â°C). NBR resists many oils and some solvents but is attacked by strong acids, strong alkalis, ketones (e.g., acetone), some chlorinated solvents, and certain oxidizers. Practical guidance: - For light, non-aggressive chemicals (dilute aqueous solutions, many hydraulic fluids, non-oxidizing gases) the coupling will often be acceptable within stated pressure/temperature limits. - For strong acids, strong alkalis, oxidizing agents, ketones, chlorinated solvents, or highly corrosive media, do not assume compatibility. Chrome plating can pit or flake under aggressive attack, and NBR seals may swell, harden, or fail. - If the chemical is borderline or critical, consult Nitto Kohki compatibility data or provide the exact chemical, concentration, temperature, and duty cycle so a proper assessment can be made. Consider alternatives (stainless steel body, PTFE or FKM seals) for high corrosion resistance. Bottom line: Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel may be used with some chemicals, but verify compatibility for the specific chemical and conditions before use; avoid for strongly corrosive media without confirmation.

Socket quick coupling with female thread BSPT with valve, NITTO KOHKI SP CUPLA type A, steel carbon

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

Additional information

Material	CS – steel (cast iron)

Socket with a shut-off valve Nitto Kohki series SP CUPLA type A with a BSPT female thread o excellent durability, intended for water, oils hydraulic, steam, chemicals, air and gases. Material: steel chrome-plated. Working pressure: 75 bar (1/8″, 1/4″, 3/8″), 45 bar (1/2″, 3/4″, 1″), 30 bar (1.1/4″, 1.1/2″), 20 bar (2″). Operating temperature: from -20°C to +80°C (NBR).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
NK-10S-A-S	Quick coupling socket SP-A CUPLA, 1.1/4" BSPT female, nickel-plated steel	-	30	In stock	Enquiry
NK-12S-A-S	Quick coupling socket SP-A CUPLA, 1.1/2" BSPT female, nickel-plated steel	-	30	In stock	Enquiry
NK-16S-A-S	Quick coupling socket SP-A CUPLA, 2" BSPT female, nickel-plated steel	-	20	In stock	Enquiry
NK-2S-A-S	Quick coupling socket SP-A CUPLA, 1/4" BSPT female, nickel-plated steel	-	75	In stock	Enquiry
NK-3S-A-S	Quick coupling socket SP-A CUPLA, 3/8" BSPT female, nickel-plated steel	-	75	In stock	Enquiry
NK-4S-A-S	Quick coupling socket SP-A CUPLA, 1/2" BSPT female, nickel-plated steel	-	45	In stock	Enquiry
NK-6S-A-S	Quick coupling socket SP-A CUPLA, 3/4" BSPT female, nickel-plated steel	-	45	In stock	Enquiry
NK-8S-A-S	Quick coupling socket SP-A CUPLA, 1" BSPT female, nickel-plated steel	-	45	In stock	Enquiry

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Socket with a shut-off valve Nitto Kohki series SP CUPLA type A with a BSPT female thread o excellent durability, intended for water, oils hydraulic, steam, chemicals, air and gases. Material: steel chrome-plated. Working pressure: 75 bar (1/8″, 1/4″, 3/8″), 45 bar (1/2″, 3/4″, 1″), 30 bar (1.1/4″, 1.1/2″), 20 bar (2″). Operating temperature: from -20°C to +80°C (NBR).