Quick coupling socket with GW BSPT valve, NITTO KOHKI SP CUPLA type A, carbon steel

Q: 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.

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

Additional information

Material	CS – steel (cast iron)

Nitto Kohki series SP CUPLA type A socket with a shut-off valve and internal BSPT thread, featuring excellent durability, designed for water, hydraulic oils, steam, chemicals, air, and gases. Material: chrome-plated steel. 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, 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

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Nitto Kohki series SP CUPLA type A socket with a shut-off valve and internal BSPT thread, featuring excellent durability, designed for water, hydraulic oils, steam, chemicals, air, and gases. Material: chrome-plated steel. 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).