Is the Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass suitable for use with high-viscosity lubricants at 50 bar?

Yes. The Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass is specified as particularly recommended for high-viscosity fluids such as lubricants and lists a working pressure of 50 bar for sizes 1/8", 1/4" and 3/8". Therefore for those sizes it is suitable for use with high-viscosity lubricants at 50 bar, within the stated temperature range (-20Â°C to +80Â°C with NBR seals). Ensure you select one of the 1/8", 1/4" or 3/8" sizes; larger sizes have lower maximum working pressures (30â15 bar) and would not be appropriate for 50 bar service. Also confirm chemical compatibility of brass and NBR with your specific lubricant and operating temperature extremes before use.

Can the Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass be used with steam at temperatures up to +80Â°C?

Yes. Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass is specified for steam service and has an operating temperature range up to +80Â°C (NBR). Ensure steam pressure does not exceed the rated working pressure for the coupling size (50/30/20/15 bar as listed) and verify compatibility of NBR seals with your specific steam conditions (pure steam at â¤+80Â°C is acceptable; prolonged wet/condensing steam or higher temperatures may require alternative seal materials).

Does the Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass support use with aggressive chemicals?

Yes. the Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass can be used with chemicals, but with caveats. Why: the product description explicitly lists âchemicalsâ among compatible media and shows good durability and pressure/temperature ranges (working pressure up to 50 bar for smaller sizes; operating temperature â20Â°C to +80Â°C with NBR seals). Brass body is generally compatible with many chemicals and the coupling is recommended for various fluids including hydraulic oils, steam, air and gases. Caveats and recommendations: - Compatibility depends on the specific chemical. Brass may corrode or suffer dezincification with strong acids (e.g., hydrochloric, sulfuric), ammonia, some halogenated solvents or highly alkaline solutions. NBR seals are incompatible with certain solvents, ketones, and high temperatures above +80Â°C. - Check chemical compatibility tables for brass and NBR against the exact chemical, concentration and temperature you plan to use. - For aggressive, highly corrosive or high-temperature chemicals, consider couplings made of more resistant metals (stainless steel) and alternative seal materials (e.g., FKM/Viton, PTFE). - If in doubt, consult Nitto Kohki technical support or provide the chemical name, concentration and operating conditions to confirm suitability. Bottom line: usable with many chemicals as stated, but validate compatibility for aggressive or specific chemicals before use.

Full-flow quick coupling socket with BSPT thread, NITTO KOHKI TSP CUPLA, brass

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

Additional information

Material	B – brass (bronze)

Full-flow quick coupling socket Nitto Kohki series TSP CUPLA with internal BSPT thread, featuring excellent durability, designed for water, hydraulic oils, steam, chemicals, air, and gases. Particularly recommended for high-viscosity fluids such as lubricants. Material: brass. Working pressure: 50 bar (1/8″, 1/4″, 3/8″), 30 bar (1/2″, 3/4″, 1″), 20 bar (1.1/4″, 1.1/2″), 15 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-10TSF-B	TSP CUPLA quick coupling socket, BSPT 1.1/4" thread, brass	-	20	In stock	Enquiry
NK-12TSF-B	TSP CUPLA quick coupling socket, BSPT 1.1/2" thread, brass	-	20	In stock	Enquiry
NK-16TSF-B	TSP CUPLA quick coupling socket, BSPT 2" thread, brass	-	15	In stock	Enquiry
NK-1TSF-B	TSP CUPLA quick coupling socket, BSPT 1/8" thread, brass	-	50	In stock	Enquiry
NK-2TSF-B	TSP CUPLA quick coupling socket, BSPT 1/4" thread, brass	-	50	In stock	Enquiry
NK-3TSF-B	TSP CUPLA quick coupling socket, BSPT 3/8" thread, brass	-	50	In stock	Enquiry
NK-4TSF-B	TSP CUPLA quick coupling socket, BSPT 1/2" thread, brass	-	30	In stock	Enquiry
NK-6TSF-B	TSP CUPLA quick coupling socket, BSPT 3/4" thread, brass	-	30	In stock	Enquiry
NK-8TSF-B	TSP CUPLA quick coupling socket, BSPT 1" thread, brass	-	30	In stock	Enquiry

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Full-flow quick coupling socket Nitto Kohki series TSP CUPLA with internal BSPT thread, featuring excellent durability, designed for water, hydraulic oils, steam, chemicals, air, and gases. Particularly recommended for high-viscosity fluids such as lubricants. Material: brass. Working pressure: 50 bar (1/8″, 1/4″, 3/8″), 30 bar (1/2″, 3/4″, 1″), 20 bar (1.1/4″, 1.1/2″), 15 bar (2″). Operating temperature: from -20°C to +80°C (NBR).