Is the Quick Coupling Socket with BSPT Female Valve, NITTO KOHKI SP CUPLA A, Carbon Steel suitable for steam and hydraulic oil at my operating pressure and temperature range?

Quick Coupling Socket with BSPT Female Valve, NITTO KOHKI SP CUPLA A, Carbon Steel Yes — based on the provided specification, this coupling is suitable for both steam and hydraulic oil within the stated pressure and temperature limits. Key points: - Media compatibility: explicitly listed as suitable for steam and hydraulic oils. - Pressure limits: up to 75 bar for 1/8", 1/4", 3/8"; 45 bar for 1/2", 3/4", 1"; 30 bar for 1¼" and 1½"; 20 bar for 2". Ensure your operating pressure does not exceed the limit for the coupling size you plan to use. - Temperature range: −20°C to +80°C with NBR seal. Ensure your steam or hydraulic oil temperature stays within this range; elevated steam temperatures above ~80°C will require a different seal material or product. - Materials: chrome-plated carbon steel construction offers durability and corrosion/wear resistance, appropriate for industrial steam and hydraulic oil service when pressure and temperature limits are respected. If your steam or oil service operates above 80°C or pressures above the size-specific limits, select a coupling with higher temperature-rated seals (e.g., Viton/PTFE) or higher pressure ratings.

Can the Quick Coupling Socket with BSPT Female Valve, NITTO KOHKI SP CUPLA A, Carbon Steel be used safely with chemical media at 45 bar and -10°C to +60°C?

Quick Coupling Socket with BSPT Female Valve, NITTO KOHKI SP CUPLA A, Carbon Steel Based on the product description, this coupling is rated for chemical media and has an operating temperature range of -20°C to +80°C with NBR sealing. For the medium sizes (1/2", 3/4", 1") the working pressure limit is 45 bar, which matches your pressure requirement. Your temperature range (-10°C to +60°C) is within the specified limits. Therefore, from a pressure and temperature standpoint the coupling is suitable. Caveats and safety conditions (must be verified before use): - Compatibility of NBR seal and chrome-plated carbon steel with the specific chemical(s) in your application must be confirmed. Some chemicals (strong acids, solvents, aromatic hydrocarbons, chlorine-containing media, etc.) can attack NBR or carbon steel. Consult chemical compatibility charts or the manufacturer. - Ensure the chosen coupling size corresponds to the 45 bar rating (1/2", 3/4" or 1"). Larger sizes have lower pressure ratings. - Verify dynamic conditions (temperature/pressure cycling, shock loads) and any regulatory or industry-specific requirements. - Follow manufacturer installation, maintenance and inspection guidance to maintain safe service. Conclusion: Acceptable for chemical media at 45 bar and -10°C to +60°C only if the chemical compatibility of NBR seals and carbon steel is confirmed and the correct medium-size coupling (1/2", 3/4" or 1") is used.

Quick Coupling Socket with BSPT Female Valve, NITTO KOHKI SP CUPLA A, Carbon Steel

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

Additional information

Material	CS – steel (cast iron)

The Nitto Kohki SP CUPLA Type A socket with shut-off valve and internal BSPT thread is a high-performance quick coupling solution engineered for demanding industrial applications. Manufactured from robust chrome-plated steel, it ensures exceptional resistance to wear, corrosion, and intensive use, delivering long-lasting reliability even in harsh environments. Designed for versatility, it is suitable for water, hydraulic oils, steam, chemicals, air, and gases, making it an ideal choice across multiple industries. With working pressures of up to 75 bar for smaller sizes (1/8″, 1/4″, 3/8″), 45 bar for medium sizes (1/2″, 3/4″, 1″), 30 bar for larger dimensions (1.1/4″, 1.1/2″), and 20 bar for 2″, it provides secure and efficient performance tailored to specific operational needs. The operating temperature range from -20°C to +80°C with NBR sealing guarantees reliable functionality in both low and high temperature conditions. Combining precision engineering with user-friendly design, the SP CUPLA Type A socket enhances workflow efficiency, minimizes downtime, and ensures safe, leak-free connections, making it a trusted solution for professionals who demand durability and consistent performance.

List of product variants

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

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

Call us: +91 8 925 918 796 or email us: chennai@tubes-international.com

SEND ENQUIRY

The Nitto Kohki SP CUPLA Type A socket with shut-off valve and internal BSPT thread is a high-performance quick coupling solution engineered for demanding industrial applications. Manufactured from robust chrome-plated steel, it ensures exceptional resistance to wear, corrosion, and intensive use, delivering long-lasting reliability even in harsh environments. Designed for versatility, it is suitable for water, hydraulic oils, steam, chemicals, air, and gases, making it an ideal choice across multiple industries. With working pressures of up to 75 bar for smaller sizes (1/8″, 1/4″, 3/8″), 45 bar for medium sizes (1/2″, 3/4″, 1″), 30 bar for larger dimensions (1.1/4″, 1.1/2″), and 20 bar for 2″, it provides secure and efficient performance tailored to specific operational needs. The operating temperature range from -20°C to +80°C with NBR sealing guarantees reliable functionality in both low and high temperature conditions. Combining precision engineering with user-friendly design, the SP CUPLA Type A socket enhances workflow efficiency, minimizes downtime, and ensures safe, leak-free connections, making it a trusted solution for professionals who demand durability and consistent performance.