Is the TW coupling DIN 28450 with GW BSP, stainless steel, type VK compatible with lubricants, oils and most industrial fluids at -20Â°C to +65Â°C using Teflon GD thread sealing?

Yes. The TW coupling DIN 28450 with GW BSP, stainless steel, type VK (TW type VK loading coupling plug with internal BSP thread) is compatible with lubricants, oils and most industrial fluids within the stated operating range when using Teflon GD thread sealing. Key points: - Materials and design: AISI 316 stainless steel construction and design per EN ISO 14420-6 (formerly DIN 28450) make the coupling suitable for a wide range of chemical environments typical for oils, lubricants and industrial fluids. - Pressure and temperature: Rated for -0.8 to 16 bar and an operating temperature range of -20Â°C to +65Â°C (noting compatibility depends on both medium and sealing material). - Sealing: Teflon (PTFE) GD thread sealing is chemically resistant to most oils, lubricants and many industrial fluids across the specified temperature range, providing reliable leak-tight joints. - Exceptions/notes: Not intended for liquefied gases or vapors. Confirm specific fluid compatibility (especially aggressive additives, aromatics, strong solvents or high-temperature conditions) against PTFE and AISI 316 chemical resistance data and system operating conditions. Conclusion: Generally compatible for lubricants, oils and most industrial fluids at -20Â°C to +65Â°C with Teflon GD thread sealing, provided the specific fluid and any additives are checked against PTFE and 316 stainless steel compatibility.

Can TW coupling DIN 28450 with GW BSP, stainless steel, type VK be used with aggressive chemicals and solvents within -20Â°C to +65Â°C when sealed with Teflon GD?

TW coupling DIN 28450 with GW BSP, stainless steel, type VK Format can be used with aggressive chemicals and solvents within â20Â°C to +65Â°C when sealed with Teflon GD only if the specific chemical compatibility with AISI 316 (316 stainless steel) and PTFE (Teflon) is confirmed. The coupling is rated for â20Â°C to +65Â°C and â0.8 to 16 bar and is intended for liquids, bulk materials and gases (excluding liquefied gas/vapor). AISI 316 and PTFE resist many aggressive media, but some strong halogenated solvents, hot chlorinated hydrocarbons, molten alkali metals or fluorinating agents may attack one or both materials. Verify the exact chemicals, concentrations, temperature and pressure against manufacturer chemical compatibility data or a materials-compatibility chart before use.

Can TW coupling DIN 28450 with GW BSP, stainless steel, type VK be used for food-grade liquids and potable water when sealed with Teflon GD?

Yes. TW coupling DIN 28450 with GW BSP, stainless steel, type VK can be used for food-grade liquids and potable water when sealed with Teflon GD, with these conditions and caveats: - Materials: The coupling is made of AISI 316 stainless steel, which is widely accepted for food and potable water applications due to its corrosion resistance and general food-contact suitability. - Sealing: The seal type GD uses PTFE (Teflon). PTFE is chemically inert, has excellent temperature stability, and is commonly used in food- and drinking-water service when a suitable, food-compliant grade is used. - Standards and design: The coupling conforms to EN ISO 14420-6 (formerly DIN 28450) and is intended for liquids (excluding liquefied gas/vapor), making it appropriate for hygienic liquid transfer when installed and maintained correctly. - Operating limits: Pressure range (vacuum to 16 bar) and temperature range (â20 Â°C to +65 Â°C) are compatible with most food and potable-water uses; ensure your process stays within these limits. - Additional considerations: - Verify that the specific PTFE formulation and any lubricants, additives or surface treatments used on the coupling are certified for food contact and potable water (e.g., FDA, EU Reg. 10/2011, NSF/ANSI 61) as required by your jurisdiction. - Ensure proper cleaning/sanitization compatibility (PTFE and AISI 316 tolerate common cleaning agents, but confirm for your regimen). - Check for crevices or joint designs that might trap residues; for sensitive hygienic applications, mating components and installation practices should meet hygienic design principles. - Confirm thread compatibility (GW BSP internal to your external BSP fittings) and use correct assembly torque to avoid damage to seals. Conclusion: Functionally suitable for food-grade liquids and potable water when installed within specified temperature/pressure limits and when the specific PTFE seal and any ancillary materials are certified compliant with applicable food-contact and drinking-water standards.

TW coupling DIN 28450 with GW BSP, stainless steel, type VK

Additional information

Material	SS – stainless steel
Standard length [m]	100

TW type VK loading coupling plug with internal BSP thread. Designed for installation on hose ends or piping systems with external BSP thread. Manufactured according to standard EN ISO 14420-6 (formerly DIN 28450). Intended for liquids, bulk materials, and gases (except liquefied gas and vapor). Material: AISI 316 steel. Pressure: from -0.8 bar to 16 bar. Operating temperature: from -20°C to +65°C (considering the medium and sealing material). Thread sealing (seal type GD): Teflon.

List of product variants

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

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TW type VK loading coupling plug with internal BSP thread. Designed for installation on hose ends or piping systems with external BSP thread. Manufactured according to standard EN ISO 14420-6 (formerly DIN 28450). Intended for liquids, bulk materials, and gases (except liquefied gas and vapor). Material: AISI 316 steel. Pressure: from -0.8 bar to 16 bar. Operating temperature: from -20°C to +65°C (considering the medium and sealing material). Thread sealing (seal type GD): Teflon.