Is the TW coupling DIN 28450 with BSP thread, stainless steel, E-CTFE lined, type VK suitable for use with strong acids and alkalis across the full pH 1–14 range?

Yes. The TW coupling DIN 28450 with BSP thread, stainless steel, E-CTFE lined, type VK is suitable for use with strong acids and alkalis across the full pH 1–14 range. The E-CTFE lining provides exceptional chemical resistance and protects the AISI 316 stainless steel body where metal alone would be insufficient. The component is engineered for aggressive chemical environments, offers a temperature range of -40°C to +130°C, and delivers high mechanical strength, abrasion resistance and leak-tightness (Teflon GD thread seal), ensuring reliable, long-lasting performance in demanding industrial applications involving highly corrosive substances.

Can the TW coupling DIN 28450 with BSP thread, stainless steel, E-CTFE lined, type VK be used continuously at temperatures down to -40°C and up to +130°C without performance loss?

Yes. The TW coupling DIN 28450 with BSP thread, stainless steel, E-CTFE lined, type VK can be used continuously from –40°C to +130°C without loss of performance. The E-CTFE lining is specified to provide exceptional chemical resistance and stability across that full temperature range, while the AISI 316 stainless steel body and Teflon GD thread seal ensure mechanical strength, leak-tightness and long service life under aggressive chemical and abrasive conditions.

Coupling TW DIN 28450 with a female BSP thread, steel stainless with a lining E-CTFE, type VK

Additional information

Material	SS – stainless steel

Plug coupling reloading TW type VK with thread internal BSP and with a lining E-CTFE. intended for mounting on ends for hose or installations pipe having thread external BSP. made in accordance with the standard EN ISO 14420-6 (formerly DIN 28450). used for most aggressive chemical media, for which resistance corrosion steel acid-resistant AISI 316 is insufficient. E-CTFE is characterized very high resistance chemical in wide the scope temperatures (in approximation od -40°C up to +130°C). is resistant to action all acids, alkalis and other aggressive substances (range pH 1 ÷ 14). has high properties mechanical, in particular hardness and resistance to abrasion. Material: steel stainless. sealing thread (type the gasket GD): teflon.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TW-VK-050-SSE	Adapter VK 50 (TW 1501) with 2" BSP female, AISI 316 / CF-E-CTFE	-	16	In stock	Enquiry
TW-VK-080-SSE	Adapter VK 80 (TW 501) with 3" BSP female, AISI 316 / CF-E-CTFE	-	16	In stock	Enquiry
TW-VK-100-SSE	Adapter VK 100 with 4" BSP female, AISI 316 / E-CTFE	-	16	In stock	Enquiry

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Plug coupling reloading TW type VK with thread internal BSP and with a lining E-CTFE. intended for mounting on ends for hose or installations pipe having thread external BSP. made in accordance with the standard EN ISO 14420-6 (formerly DIN 28450). used for most aggressive chemical media, for which resistance corrosion steel acid-resistant AISI 316 is insufficient. E-CTFE is characterized very high resistance chemical in wide the scope temperatures (in approximation od -40°C up to +130°C). is resistant to action all acids, alkalis and other aggressive substances (range pH 1 ÷ 14). has high properties mechanical, in particular hardness and resistance to abrasion. Material: steel stainless. sealing thread (type the gasket GD): teflon.