Is the TW coupling DIN 28450 with BSP female thread, brass, MK type suitable for transferring potable water and food-grade liquids?

TW coupling DIN 28450 with BSP female thread, brass, MK type is generally suitable for transferring potable water and food-grade liquids, with these important caveats: - Material: Manufactured from high-quality brass — commonly acceptable for potable water and many food applications, but suitability depends on brass alloy composition (lead content) and any surface treatments. For potable water use, confirm the alloy meets local potable-water/food-contact standards (e.g., NSF/ANSI 61, WRAS, KTW, ACS, or equivalent). - Seals: Equipped with NBR (nitrile) and polyurethane seals. NBR is widely used for water but may not be approved for all food-contact situations; verify seal certifications for food-grade contact and temperature/chemical compatibility with the specific liquid. - Standards & Exclusions: Designed to EN ISO 14420-6 (formerly DIN 28450) and rated for -0.8 to 16 bar, -20°C to +65°C. It excludes liquefied gases and vapors. Ensure the operating temperature, pressure and the medium’s composition fall within these limits. Recommendation: For absolute assurance, request documentation/certifications for brass alloy and seal materials proving compliance with potable water and food-contact regulations applicable in your region. If certifications are provided, TW coupling DIN 28450 with BSP female thread, brass, MK type is suitable.

Can the TW coupling DIN 28450 with BSP female thread, brass, MK type be used with aggressive chemicals or solvents?

TW coupling DIN 28450 with BSP female thread, brass, MK type is manufactured from high-quality brass and fitted with NBR (GSD) and polyurethane (GD) seals, providing good general corrosion and wear resistance for many industrial liquids, bulk materials and gases. However, it is not specified as compatible with liquefied gases or vapors, and suitability with aggressive chemicals or solvents depends on chemical compatibility with brass and the seal materials (NBR and polyurethane). Strong acids, alkalis, chlorinated solvents, ketones (e.g. acetone), aromatic hydrocarbons and some aggressive polar solvents can attack brass and degrade NBR or polyurethane, causing swelling, embrittlement or loss of sealing. Therefore, do not use TW coupling DIN 28450 with BSP female thread, brass, MK type with aggressive chemicals or solvents unless you verify compatibility case-by-case: consult chemical compatibility charts for brass, NBR and polyurethane, check operating temperature and pressure limits for the specific medium, and perform vendor confirmation or testing. If incompatibility is likely, choose couplings with chemically resistant materials (e.g. stainless steel bodies and FKM, PTFE or EPDM seals) specified for the chemical in question.

TW coupling DIN 28450 with BSP female thread, brass, MK type

Additional information

Material	B – brass (bronze)

The TW type MK loading coupling socket with internal BSP thread is a reliable and durable solution designed in compliance with EN ISO 14420-6 (formerly DIN 28450), ensuring compatibility and safety in demanding industrial applications. Manufactured from high-quality brass, it offers excellent resistance to wear and corrosion, making it suitable for transferring liquids, bulk materials, and gases, excluding liquefied gas and vapor. With a pressure range from -0.8 bar up to 16 bar and an operating temperature span from -20°C to +65°C, depending on the medium and sealing material, this coupling guarantees consistent performance under varying conditions. The coupling is equipped with a robust NBR seal (type GSD, for 4″ type TWO) and a polyurethane thread seal (type GD), providing secure and leak-free connections. Engineered for efficiency and reliability, it is an ideal choice for industries seeking a safe, versatile, and long-lasting coupling solution.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TW-MK-050-MS	MK50 connector (TW 1502) with 2" BSP thread, brass	-	16	In stock	Enquiry
TW-MK-050-MSR	MK50 connector (TW 1502) with 2" BSP thread, brass	-	16	In stock	Enquiry
TW-MK-080-MS	MK80 connector (TW 502) with 3" BSP thread, brass	-	16	In stock	Enquiry
TW-MK-080-MSR	MK80 connector (TW 502) with 3" BSP thread, brass	-	16	In stock	Enquiry
TW-MK-100-MS	MK100 connector with 4" BSP thread, brass	-	16	In stock	Enquiry
TW-MK-100-MSR	MK100 connector with 4" BSP thread, brass	-	16	In stock	Enquiry

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The TW type MK loading coupling socket with internal BSP thread is a reliable and durable solution designed in compliance with EN ISO 14420-6 (formerly DIN 28450), ensuring compatibility and safety in demanding industrial applications. Manufactured from high-quality brass, it offers excellent resistance to wear and corrosion, making it suitable for transferring liquids, bulk materials, and gases, excluding liquefied gas and vapor. With a pressure range from -0.8 bar up to 16 bar and an operating temperature span from -20°C to +65°C, depending on the medium and sealing material, this coupling guarantees consistent performance under varying conditions. The coupling is equipped with a robust NBR seal (type GSD, for 4″ type TWO) and a polyurethane thread seal (type GD), providing secure and leak-free connections. Engineered for efficiency and reliability, it is an ideal choice for industries seeking a safe, versatile, and long-lasting coupling solution.