Is the TW coupling DIN 28450 with BSP female thread, stainless steel, E-CTFE lined, type MK suitable for handling acids and alkalis across pH 1–14 at temperatures −40°C to +130°C?

Yes. The TW coupling DIN 28450 with BSP female thread, stainless steel, E-CTFE lined, type MK is suitable. Its E-CTFE lining provides exceptional chemical resistance across the full pH range 1–14 and remains stable from −40°C to +130°C, specifically engineered for highly aggressive acids and alkalis where stainless steel alone is insufficient. The AISI 316 stainless-steel body delivers mechanical strength and abrasion resistance, while hypalon (GSD) and PTFE (GD) seals ensure leak-tightness and operational safety. Compliant with EN ISO 14420-6 (formerly DIN 28450), this coupling is appropriate for demanding chemical-processing and petrochemical applications requiring robust, long-lasting handling of corrosive media.

Does the TW coupling DIN 28450 with BSP female thread, stainless steel, E-CTFE lined, type MK require special maintenance or cleaning procedures after exposure to highly abrasive or particulate-laden fluids?

TW coupling DIN 28450 with BSP female thread, stainless steel, E-CTFE lined, type MK does not require special maintenance beyond standard best practices after exposure to highly abrasive or particulate‑laden fluids, but recommended procedures should be followed to maximize service life and maintain sealing performance: - Flush thoroughly: Immediately flush the coupling with a compatible solvent or cleaning fluid that will dissolve or carry away particulates and residues without attacking E‑CTFE or seals (use water, dilute neutral cleaners, or manufacturer‑recommended chemicals). - Inspect seals and lining: Visually and tactilely inspect the E‑CTFE lining, hypalon (GSD) and PTFE (GD) seals for abrasion, cuts, swelling or hardening. Replace any components showing wear or damage. - Remove trapped particles: Disassemble if necessary to remove trapped particulate material from threads, sealing faces and bores. Use soft brushes or low‑pressure jet to avoid scoring surfaces. - Dry and protect: Dry thoroughly and, if prolonged storage is required, apply a compatible protective film or ensure dry, clean conditions to prevent contamination. - Avoid aggressive mechanical cleaning: Do not use abrasive tools or harsh mechanical scrubbing on E‑CTFE or polished stainless surfaces to prevent damage. - Follow operating limits: Maintain pH and temperature within specified ranges (pH 1–14, -40°C to +130°C) and avoid conditions that may accelerate abrasive wear beyond design expectations. - Scheduled inspection: Implement periodic inspections based on service severity; increase frequency for highly abrasive applications. Following these steps ensures the E‑CTFE lining and stainless‑steel body retain their chemical and abrasion resistance and that seals remain leak‑tight.

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

Additional information

Material	SS – stainless steel

The loading connection socket TW type MK with internal BSP thread and advanced E-CTFE lining is a high-performance solution designed in compliance with EN ISO 14420-6 (formerly DIN 28450). Engineered for the transfer of highly aggressive and corrosive media, it provides reliable protection where the durability of AISI 316 stainless steel alone is not sufficient. The E-CTFE lining ensures exceptional resistance to a full spectrum of acids, alkalis, and aggressive chemicals within a wide pH range from 1 to 14, while maintaining stability in extreme temperatures from -40°C up to +130°C. Distinguished by outstanding mechanical strength, hardness, and abrasion resistance, this component guarantees long-lasting performance even under demanding operating conditions. The robust stainless-steel body combined with specialized sealing solutions—hypalon seal type GSD for the 4″ TWO connection and teflon seal type GD for thread sealing—ensures maximum safety, leak-tightness, and operational reliability. This makes the socket an ideal choice for industries requiring uncompromising chemical resistance, such as chemical processing, petrochemical plants, and other sectors handling aggressive substances, where efficiency, safety, and durability are critical.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TW-MK-050-SSE	MK50 connector (TW 1502) with 2" BSP thread, AISI 316 / E-CTFE	-	16	In stock	Enquiry
TW-MK-080-SSE	MK80 connector (TW 502) with 3" BSP thread, AISI 316 / E-CTFE	-	16	In stock	Enquiry
TW-MK-100-SSE	MK100 connector with 4" BSP GW, AISI 316 / E-CTFE	-	16	In stock	Enquiry

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The loading connection socket TW type MK with internal BSP thread and advanced E-CTFE lining is a high-performance solution designed in compliance with EN ISO 14420-6 (formerly DIN 28450). Engineered for the transfer of highly aggressive and corrosive media, it provides reliable protection where the durability of AISI 316 stainless steel alone is not sufficient. The E-CTFE lining ensures exceptional resistance to a full spectrum of acids, alkalis, and aggressive chemicals within a wide pH range from 1 to 14, while maintaining stability in extreme temperatures from -40°C up to +130°C. Distinguished by outstanding mechanical strength, hardness, and abrasion resistance, this component guarantees long-lasting performance even under demanding operating conditions. The robust stainless-steel body combined with specialized sealing solutions—hypalon seal type GSD for the 4″ TWO connection and teflon seal type GD for thread sealing—ensures maximum safety, leak-tightness, and operational reliability. This makes the socket an ideal choice for industries requiring uncompromising chemical resistance, such as chemical processing, petrochemical plants, and other sectors handling aggressive substances, where efficiency, safety, and durability are critical.