Is the Full-flow quick coupling plug with GW BSPT, NITTO KOHKI TSP CUPLA in AISI 304 steel suitable for steam and high-viscosity lubricants at 75 bar and -20Â°C to +80Â°C?

Yes. The Full-flow quick coupling plug with GW BSPT, NITTO KOHKI TSP CUPLA in AISI 304 steel is suitable for steam and highâviscosity lubricants within the specified limits. The product description explicitly lists steam and hydraulic oils/chemicals and specifically recommends highâviscosity fluids such as lubricants. Material AISI 304 provides corrosion resistance appropriate for many steam and lubricant applications. Working pressure is rated up to 75 bar for sizes 1/8", 1/4", and 3/8" (lower ratings for larger sizes), so ensure your coupling size matches the 75 bar requirement. Operating temperature range with NBR seals is â20Â°C to +80Â°C, matching your specified range. Confirm seal compatibility if higher temperature, aggressive chemicals, or special steam conditions (e.g., superheated steam) are present, and verify required coupling size to meet the 75 bar pressure.

Can the Full-flow quick coupling plug with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel handle hydraulic oils and chemicals at 75 bar within -20Â°C to +80Â°C?

Yes. The Full-flow quick coupling plug with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel is rated for the fluids listed (water, hydraulic oils, steam, chemicals, air, gases) and is particularly recommended for highâviscosity fluids such as lubricants. For sizes 1/8", 1/4" and 3/8" the working pressure is 75 bar, and the specified operating temperature range with NBR seals is â20Â°C to +80Â°C, so it is suitable for hydraulic oils and many chemicals at 75 bar within that temperature range. Ensure chemical compatibility with NBR for specific chemicals and verify pressure rating for larger sizes before use.

Full-flow quick coupling plug with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel

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

Additional information

Material	SS – stainless steel

Nitto Kohki series TSP CUPLA full-flow quick coupling plug with internal BSPT thread, featuring 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	Nominal inner diameter	Working pressure [bar]
NK-10TPF-SS	TSP CUPLA quick coupling plug, BSPT 1.1/4" thread, AISI 304	-	30
NK-12TPF-SS	TSP CUPLA quick coupling plug, BSPT 1.1/2" thread, AISI 304	-	30
NK-16TPF-SS	TSP CUPLA quick coupling plug, BSPT 2" thread, AISI 304	-	20
NK-1TPF-SS	TSP CUPLA quick coupling plug, BSPT 1/8" thread, AISI 304	-	75
NK-2TPF-SS	TSP CUPLA quick coupling plug, BSPT 1/4" thread, AISI 304	-	75
NK-3TPF-SS	TSP CUPLA quick coupling plug, BSPT 3/8" thread, AISI 304	-	75
NK-4TPF-SS	TSP CUPLA quick coupling plug, BSPT 1/2" thread, AISI 304	-	45
NK-6TPF-SS	TSP CUPLA quick coupling plug, BSPT 3/4" thread, AISI 304	-	45
NK-8TPF-SS	TSP CUPLA quick coupling plug, BSPT 1" thread, AISI 304	-	45

Nitto Kohki series TSP CUPLA full-flow quick coupling plug with internal BSPT thread, featuring 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).