Is the Aluminum MB Cover Without Chain for TW Connector DIN 28450 compatible with all VK (male) TW loading connections and their seals?

Aluminum MB Cover Without Chain for TW Connector DIN 28450 is designed specifically to protect VK (male) TW loading connections and their seals. Its TWF-type NBR seal and precise construction provide reliable sealing and resistance to wear, oils and fuels, and the cover functions as a pressure-resistant cap. However, compatibility with "all" VK (male) TW loading connections depends on matching the DIN 28450 dimensions, thread/form fit and any specific OEM tolerances. If the VK connector conforms to DIN 28450 standard dimensions for TW male fittings and uses seals compatible with TWF-type NBR (operating −20°C to +65°C), the cover will be compatible. For non‑standard, modified or proprietary VK male fittings, or where different seal materials/temperature ranges are required, verify measurements and seal specifications before use.

Can the Aluminum MB Cover Without Chain for TW Connector DIN 28450 be used in environments with aggressive chemicals or high humidity without additional protective coatings?

No. The Aluminum MB Cover Without Chain for TW Connector DIN 28450—while made of robust aluminum and fitted with a TWF-type NBR seal offering good resistance to oils, fuels and wear—should not be used in environments with aggressive chemicals or sustained high humidity without additional protective coatings or treatments. Standard aluminum provides decent corrosion resistance in many conditions, but aggressive chemicals (strong acids, alkalis, solvents, chlorides) and prolonged high-humidity or marine atmospheres can cause corrosion, pitting, or accelerated degradation of both aluminum and the NBR seal over time. For such environments, specify additional surface protection (e.g., anodizing, epoxy/chemical-resistant coatings, or stainless-steel alternatives) and confirm chemical compatibility of the NBR seal with the specific media. Also consider periodic inspections and maintenance to ensure long-term integrity.

Cover MB without a chain for coupling TW DIN 28450, aluminum

Additional information

Material	AL – aluminum

Cover MB, without a chain, for fittings transfer TW. used for parts VK (male) constitutes a cap resistant on pressure. Material: aluminum. Operating temperature: od -20°C up to +65°C (should take into account medium and Material seal). gasket type TWF, Material the gasket: NBR.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TW-MB-050-AL	Cover MB 50 (TW 1506), aluminum	-	16	In stock	Enquiry
TW-MB-050-ALR	Cover MB 50 (TW 1506), aluminum	-	16	In stock	Enquiry
TW-MB-080-AL	Cover MB 80 (TW 506), aluminum	-	16	In stock	Enquiry
TW-MB-080-ALR	Cover MB 80 (TW 506), aluminum	-	16	In stock	Enquiry
TW-MB-100-AL	Cover MB 100, aluminum	-	16	In stock	Enquiry
TW-MB-100-ALR	Cover MB 100, aluminum	-	16	In stock	Enquiry

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Cover MB, without a chain, for fittings transfer TW. used for parts VK (male) constitutes a cap resistant on pressure. Material: aluminum. Operating temperature: od -20°C up to +65°C (should take into account medium and Material seal). gasket type TWF, Material the gasket: NBR.