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

Yes. The Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel is suitable for lubricants at 75 bar and within the -20Â°C to +80Â°C temperature range when fitted with NBR seals. Reasoning: the product is explicitly recommended for high-viscosity fluids such as lubricants; the working pressure rating includes 75 bar for sizes 1/8", 1/4", and 3/8"; and the NBR operating temperature range is -20Â°C to +80Â°C, matching your conditions. Ensure you are using one of the sizes rated for 75 bar and that NBR seals are specified/installed for compatibility.

Can Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel handle chemical fluids at 30 bar and 120Â°C?

Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel Format: Based on the product data, working pressure for the sizes 1.1/4" and 1.1/2" is rated at 30 bar, and AISI 304 construction is chemically resistant to many media. However the stated operating temperature ranges depend on seal material: NBR up to +80Â°C, Viton up to +180Â°C, EPDM up to +150Â°C. At 120Â°C you must ensure the coupling uses a seal compatible with that temperature (Viton or EPDM), not NBR. Also confirm chemical compatibility of the specific fluid with AISI 304 and the chosen seal (Viton/EPDM). some aggressive chemicals may attack stainless steel or degrade seals. In summary: mechanically (pressure and temperature) a 1.1/4" or 1.1/2" Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel can handle 30 bar at 120Â°C only if fitted with Viton (or possibly EPDM if compatible) seals and the specific chemical is compatible with AISI 304 and the seal material. If seals are NBR or the chemical is not compatible, it is not suitable. For safety, verify exact size, seal material, and chemical compatibility with manufacturer specifications.

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

Q: Can Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel be used with steam at 45 bar and 150Â°C?

No - Full-flow quick coupling socket with GW BSPT, NITTO KOHKI TSP CUPLA, AISI 304 steel should not be used with steam at 45 bar and 150Â°C. Although the series lists steam among compatible media and the AISI 304 body is corrosion-resistant, the specified working pressure for the 1/2", 3/4", 1" sizes is 45 bar but the maximum operating temperature depends on seal material: NBR max 80Â°C, Viton max 180Â°C, EPDM max 150Â°C. At 150Â°C the only suitable seal would be EPDM (limit 150Â°C) or Viton (up to 180Â°C), but EPDM is at its absolute limit and compatibility with highâpressure steam is uncertain. For safe operation with steam at 45 bar and 150Â°C you must confirm the exact coupling size, confirm a Viton seal rated for highâpressure steam, and get manufacturer approval/pressureâtemperature rating for steam. Without that confirmation do not use it.

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

Additional information

Material	SS – stainless steel

Nitto Kohki TSP CUPLA series full-flow quick coupling socket 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: 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), from -20°C to +180°C (viton), from -40°C to +150°C (EPDM).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
NK-10TSF-SS	TSP CUPLA quick coupling socket, BSPT 1.1/4" thread, AISI 304	-	30	In stock	Enquiry
NK-12TSF-SS	TSP CUPLA quick coupling socket, BSPT 1.1/2" thread, AISI 304	-	30	In stock	Enquiry
NK-12TSF-SS-E	TSP CUPLA quick coupling socket, BSPT 1.1/2" thread, AISI 304, EPDM	-	30	In stock	Enquiry
NK-16TSF-SS	TSP CUPLA quick coupling socket, BSPT 2" thread, AISI 304	-	20	In stock	Enquiry
NK-1TSF-SS	TSP CUPLA quick coupling socket, BSPT 1/8" thread, AISI 304	-	75	In stock	Enquiry
NK-2TSF-SS	TSP CUPLA quick coupling socket, BSPT 1/4" thread, AISI 304	-	75	In stock	Enquiry
NK-2TSF-SS-V	Quick coupling socket TSP CUPLA, BSPT 1/4" thread, AISI 304, viton	-	75	In stock	Enquiry
NK-3TSF-SS	TSP CUPLA quick coupling socket, BSPT 3/8" thread, AISI 304	-	75	In stock	Enquiry
NK-4TSF-SS	TSP CUPLA quick coupling socket, BSPT 1/2" thread, AISI 304	-	45	In stock	Enquiry
NK-6TSF-SS	TSP CUPLA quick coupling socket, BSPT 3/4" thread, AISI 304	-	45	In stock	Enquiry
NK-6TSF-SS-V	TSP CUPLA quick coupling socket, BSPT 3/4" thread, AISI 304, viton	-	45	In stock	Enquiry
NK-8TSF-SS	TSP CUPLA quick coupling socket, BSPT 1" thread, AISI 304	-	45	In stock	Enquiry
NK-8TSF-SS-V	TSP CUPLA quick coupling socket, BSPT 1" thread, AISI 304, viton	-	45	In stock	Enquiry

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Nitto Kohki TSP CUPLA series full-flow quick coupling socket 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: 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), from -20°C to +180°C (viton), from -40°C to +150°C (EPDM).