PTFE Lined 2-Cx

This valve is designed for chemical gases, chemical liquids, and other corrosive media applications. It is also suitable for petrochemical, food and beverage, pharmaceutical, and water and wastewater treatment applications. Its PTFE, MPTFE, or conductive PTFE seat, along with fluoropolymer encapsulated disc, helps improve sealing suitability for corrosive media. Specific configuration should be confirmed based on actual media, temperature, pressure, and application conditions.

Size range is DN 50 to DN 600 (NPS 2 to 24), temperature range is -20°C to 200°C, maximum allowable working pressure is 10 bar (150 psi). Selection should confirm pipe size, media characteristics, actual working temperature, pressure rating, and connection standards to avoid exceeding valve applicable limits.

The valve features a minimum 3 mm thick fluoropolymer seat with a geometry that reduces seating and unseating torque while minimizing contact part wear. The seat energizer fully surrounds the seat and disc hub, providing uniform mechanical force for sealing. PTFE-impregnated steel bearings provide precise upper and lower stem alignment.

The valve uses a dynamic, self-adjusting packing design with primary and secondary dual stem sealing mechanisms to meet stringent fugitive emission requirements. The high-strength stem features a blowout-proof design. The product complies with ISO 15848-1 and TA-Luft VDI 2440 fugitive emission standards and has IEC 61508 SIL 3 capability.

The valve top flange conforms to ISO 5211, with wafer and lug body styles, and is compatible with EN 1092-1 PN 10 or ASME B16.5 Class 125/150 flange drilling. Each valve has a unique digital tag per IEC 61406, allowing identification via QR code scan. For NE 167 design, grounding and top flange drilling are provided to support anti-static design.