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.

TW coupling DIN 28450 with BSP thread, stainless steel, E-CTFE lined, type VK

Additional information

Material	SS – stainless steel

The coupling plug type VK with internal BSP thread and advanced E-CTFE lining is a high-performance solution engineered for secure installation on hose ends or piping systems with external BSP thread, fully compliant with EN ISO 14420-6 (formerly DIN 28450). Designed to withstand the most aggressive chemical environments where the durability of AISI 316 stainless steel alone is not sufficient, this component ensures maximum safety and reliability in demanding industrial applications. The E-CTFE lining provides exceptional resistance across a broad temperature spectrum from -40°C to +130°C, offering full protection against acids, alkalis, and other highly corrosive substances within the entire pH range of 1 to 14. Its outstanding mechanical strength, hardness, and abrasion resistance guarantee long-lasting performance even under extreme operating conditions. Manufactured from premium stainless steel and equipped with a Teflon GD thread seal, this coupling plug delivers superior leak-tightness, extended service life, and optimal efficiency, making it the ideal choice for industries requiring uncompromising chemical resistance and operational reliability.

List of product variants

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

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The coupling plug type VK with internal BSP thread and advanced E-CTFE lining is a high-performance solution engineered for secure installation on hose ends or piping systems with external BSP thread, fully compliant with EN ISO 14420-6 (formerly DIN 28450). Designed to withstand the most aggressive chemical environments where the durability of AISI 316 stainless steel alone is not sufficient, this component ensures maximum safety and reliability in demanding industrial applications. The E-CTFE lining provides exceptional resistance across a broad temperature spectrum from -40°C to +130°C, offering full protection against acids, alkalis, and other highly corrosive substances within the entire pH range of 1 to 14. Its outstanding mechanical strength, hardness, and abrasion resistance guarantee long-lasting performance even under extreme operating conditions. Manufactured from premium stainless steel and equipped with a Teflon GD thread seal, this coupling plug delivers superior leak-tightness, extended service life, and optimal efficiency, making it the ideal choice for industries requiring uncompromising chemical resistance and operational reliability.