Is the Full-flow quick coupling socket with hose end, NITTO KOHKI TSP CUPLA, stainless steel AISI 304 suitable for use with steam and high-viscosity lubricants at 75 bar?

Yes. The Full-flow quick coupling socket with hose end, NITTO KOHKI TSP CUPLA, stainless steel AISI 304 is suitable for steam and highâviscosity lubricants at 75 bar only for the sizes rated at 75 bar (1/8", 1/4", 3/8"). The product description explicitly lists suitability for water, hydraulic oils, steam, chemicals, air and gases, and it is particularly recommended for highâviscosity fluids such as lubricants. Material AISI 304 stainless steel is compatible with many steam and lubricant applications. Note the temperature limit of â20Â°C to +80Â°C (with NBR seals); ensure your steam temperature and lubricant temperature/chemistry do not exceed that range or require a different seal material. For larger sizes the maximum working pressures are lower (45 bar, 30 bar, 20 bar), so confirm your system pressure and temperature against the specific size and seal compatibility before use.

Full-flow quick coupling socket with hose end, NITTO KOHKI TSP CUPLA, stainless steel AISI 304

Q: Can Full-flow quick coupling socket with hose end, NITTO KOHKI TSP CUPLA, stainless steel AISI 304 be used with aggressive chemicals?

Yes. with reservations. Full-flow quick coupling socket with hose end, NITTO KOHKI TSP CUPLA, stainless steel AISI 304 is designed for water, hydraulic oils, steam, chemicals, air and gases and is thus suitable for many chemical applications. However, suitability for aggressive chemicals depends on the specific chemical(s), concentration, temperature and exposure time because: - Material: AISI 304 stainless steel offers good general corrosion resistance but is not resistant to strong chlorides, sulfuric acid, hydrochloric acid, hot concentrated salts, or some halogenated solvents. These can cause pitting, crevice corrosion or stress corrosion cracking. - Seals: The specified temperature range (-20Â°C to +80Â°C) assumes NBR (nitrile) seals. NBR is resistant to oils but is not compatible with many aggressive chemicals such as ketones, strong acids, concentrated alkalis, some esters and chlorinated hydrocarbons. Seal material compatibility often controls chemical resistance more than the metal body. - Pressure/temperature: Working pressures (up to 75 bar depending on size) and operating temperature must be observed; higher temperatures often worsen chemical attack. Recommendation: For any aggressive chemical, provide the exact chemical name, concentration and operating temperature/pressure so compatibility can be checked. If the fluid is highly corrosive (strong acids, chlorides, some organic solvents), consider higher-grade stainless (316/L or duplex), alternative metallurgy, or compatible elastomer seals (e.g., FKM, EPDM, PTFE) and consult Nitto Kohki or a chemical-compatibility chart before use.

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

Additional information

Material	SS – stainless steel

Full-flow quick coupling socket Nitto Kohki series TSP CUPLA with hose end of excellent durability, intended for water, hydraulic oils, steam, chemicals, air, and gases. Particularly recommended for high-viscosity fluids such as lubricants. Material: AISI 304 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-10TSH-SS	TSP CUPLA quick coupling socket, for hose 1.1/4", AISI 304	32	30	In stock	Enquiry
NK-12TSH-SS	TSP CUPLA quick coupling socket, for hose 1.1/2", AISI 304	38	30	In stock	Enquiry
NK-16TSH-SS	TSP CUPLA quick coupling socket, for 2" hose, AISI 304	50	20	In stock	Enquiry
NK-1TSH-SS	TSP CUPLA quick coupling socket, for 1/8" hose, AISI 304	3	75	In stock	Enquiry
NK-2TSH-SS	TSP CUPLA quick coupling socket, for 1/4" hose, AISI 304	6	75	In stock	Enquiry
NK-3TSH-SS	TSP CUPLA quick coupling socket, for 3/8" hose, AISI 304	10	75	In stock	Enquiry
NK-4TSH-SS	TSP CUPLA quick coupling socket, for 1/2" hose, AISI 304	12	45	In stock	Enquiry
NK-6TSH-SS	TSP CUPLA quick coupling socket, for 3/4" hose, AISI 304	20	45	In stock	Enquiry
NK-8TSH-SS	TSP CUPLA quick coupling socket, for 1" hose, AISI 304	25	45	In stock	Enquiry

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Full-flow quick coupling socket Nitto Kohki series TSP CUPLA with hose end of excellent durability, intended for water, hydraulic oils, steam, chemicals, air, and gases. Particularly recommended for high-viscosity fluids such as lubricants. Material: AISI 304 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).