Can the Brass MKV Sealing Ring for TW Coupling DIN 28450 be used with steam or liquefied gases?

No. The Brass MKV Sealing Ring for TW Coupling DIN 28450 must not be used with steam or liquefied gases. The product description explicitly excludes liquefied gas and steam from its suitable media. Its specified temperature range (-20°C to +65°C) and seal materials (NBR joint seal and polyurethane thread seal) further indicate it is not rated for steam or cryogenic/liquefied-gas service.

Is the Brass MKV Sealing Ring for TW Coupling DIN 28450 compatible with food-grade or potable liquid applications?

Brass MKV Sealing Ring for TW Coupling DIN 28450 is suitable for handling liquids, but its compatibility with food-grade or potable liquid applications is not guaranteed by the provided description. The sealing materials specified—NBR (type GSD) for the joint and polyurethane (type GD) for the thread—are common in industrial fluid handling but are not inherently certified for food contact or drinking water use. Food-grade and potable applications typically require specific material certifications (e.g., FDA, EU 1935/2004, WRAS, ACS) and resistance to ingredients, cleaning agents, and temperature regimes used in food/beverage systems. If you need Brass MKV Sealing Ring for TW Coupling DIN 28450 for food or potable liquids, verify with the manufacturer or supplier that: - The brass alloy is compliant with potable-water/food-contact standards (lead content, dezincification resistance, etc.). - The NBR and polyurethane seals have appropriate food-grade certifications (FDA, EU, WRAS/ACS or equivalent). - The complete assembly is tested and certified for potable water or food applications. Without those certifications, do not assume suitability for food-grade or drinking-water use.

Ring sealing for coupling TW DIN 28450, brass, type MKV

Additional information

Material	B – brass (bronze)

Ring sealing MKV with thread internal BSP for fittings transfer TW. Do use with a ring closing MKH. Together they molds an MK coupling. made in accordance with the standard EN ISO 14420-6 (formerly DIN 28450). intended for liquids, bulk materials and gases (with the exception liquefied gas and steam). Material: brass. pressure: od -0.8 bar up to 16 bar. Operating temperature: od -20°C up to +65°C (should take into account medium and Material seal). sealing coupling (type the gasket GSD, for 4″ type TWO): NBR. sealing thread (type the gasket GD): polyurethane.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TW-MKV-050-MS	Ring sealing TW 1502 with 2" BSP female, brass	-	16	In stock	Enquiry
TW-MKV-050-MSR	Ring sealing TW 1502 with 2" BSP female, brass	-	16	In stock	Enquiry
TW-MKV-080-MS	Ring sealing TW 502 with 3" BSP female, brass	-	16	In stock	Enquiry
TW-MKV-080-MSR	Ring sealing TW 502 with 3" BSP female, brass	-	16	In stock	Enquiry

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Ring sealing MKV with thread internal BSP for fittings transfer TW. Do use with a ring closing MKH. Together they molds an MK coupling. made in accordance with the standard EN ISO 14420-6 (formerly DIN 28450). intended for liquids, bulk materials and gases (with the exception liquefied gas and steam). Material: brass. pressure: od -0.8 bar up to 16 bar. Operating temperature: od -20°C up to +65°C (should take into account medium and Material seal). sealing coupling (type the gasket GSD, for 4″ type TWO): NBR. sealing thread (type the gasket GD): polyurethane.