Is the TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK compatible with temperatures down to -40Â°C and up to +130Â°C?

Yes. TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK is compatible with temperatures from approximately â40Â°C up to +130Â°C. The E-CTFE lining provides very high chemical resistance and stable performance across that temperature range, and the stainless steel construction with Teflon thread sealing supports use with aggressive media.

Can the TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK be used with highly aggressive chemicals across full pH 1â14?

Yes. The TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK is designed for the most chemically aggressive media where AISI 316 is insufficient. The E-CTFE lining offers very high chemical resistance across a wide temperature range (â -40Â°C to +130Â°C) and is resistant to all acids, alkalis and aggressive substances across pH 1â14. Thread sealing uses PTFE. Thus this coupling is suitable for highly aggressive chemicals across the full pH 1â14 range.

Does the TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK require special maintenance after exposure to abrasive media?

No special maintenance is generally required for the TW coupling DIN 28450 with GW BSP, stainless steel with E-CTFE lining, type VK after exposure to abrasive media, provided normal inspection and cleaning routines are followed. E-CTFE lining offers high abrasion resistance and excellent chemical resistance across a wide temperature and pH range, protecting the AISI 316 stainless steel body from aggressive media for which stainless alone would be insufficient. Recommended actions after exposure to abrasive or highly contaminated media: - Rinse thoroughly with a compatible, nonâabrasive cleaning fluid to remove loose particulates. - Inspect the coupling and lining visually for wear, gouging, delamination, or breaches in the E-CTFE layer. - Check thread sealing (Teflon seal type GD) for damage or compression set; replace seals if compromised. - Verify mechanical integrity of the stainless steel components and threads; replace the coupling if structural damage is found. - Where particulate ingress is likely, consider flushing the connected system to prevent embedded abrasives from abrading mating parts. If severe abrasive conditions are frequent, increase inspection intervals and keep spare linings/seals available. For specific cleaning agents, intervals, or service life estimates, follow the manufacturerâs maintenance guidelines.

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

Additional information

Material	SS – stainless steel

Plug coupling reloading TW type VK with a thread internal BSP and with a lining E-CTFE. Intended for mounting on hose ends or pipe installations having a male BSP thread. Made in accordance with the EN ISO 14420-6 standard (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 chemical resistance in wide the scope temperatures (in approximation from -40°C to +130°C). is resistant na operation all acids, alkalis and other aggressive substances (Range pH 1 ÷ 14). has high properties mechanical, in particularly hardness and resistance na 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 a thread internal BSP and with a lining E-CTFE. Intended for mounting on hose ends or pipe installations having a male BSP thread. Made in accordance with the EN ISO 14420-6 standard (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 chemical resistance in wide the scope temperatures (in approximation from -40°C to +130°C). is resistant na operation all acids, alkalis and other aggressive substances (Range pH 1 ÷ 14). has high properties mechanical, in particularly hardness and resistance na abrasion. Material: steel stainless. sealing thread (type the gasket GD): teflon.