Can the IBC flat gasket for PN flange, PTFE, be used at 300 bar with aggressive chemicals at +200Â°C?

No. The IBC flat gasket for PN flange, PTFE cannot be assumed safe for use at 300 bar with aggressive chemicals at +200Â°C without further verification. Although the product data states âWorking pressure: up to 300 barâ and an operating temperature range âfrom -200Â°C to +220Â°C,â the permissible working pressure depends on both temperature and the specific medium. PTFEâs chemical resistance is excellent for many substances, but aggressive chemicals at elevated temperature can affect sealability, creep, and flange load requirements. Selection must be agreed with TUBES INTERNATIONALÂ® and you must ensure the gasket outer diameter matches the flange class. Have the application reviewed by TUBES INTERNATIONALÂ® (provide exact chemical(s), concentration, pressure, temperature, and flange class) before using.

Can the IBC flat gasket for PN flange, PTFE, be used with steam or hot oils near +220Â°C at high pressures?

IBC flat gasket for PN flange, PTFE Format: No - PTFE has a listed maximum operating temperature of +220Â°C; using it with steam or hot oils at or above this temperature, especially at high pressures, is not recommended. PTFE softening and creep increase at high temperature and pressure, risking seal failure. Also chemical compatibility and pressure/temperature limits must be verified for steam and hot oils. Selection and approval should be agreed with TUBES INTERNATIONALÂ®; consider higherâtemperature materials (e.g., graphite or metalâreinforced gaskets) for steam/hot oil service above +220Â°C.

Is the IBC flat gasket for PN flange, PTFE, suitable for use with cryogenic media down to -200Â°C at high pressures?

No. not without confirmation and likely not recommended for high-pressure cryogenic service. Explanation: The IBC flat gasket for PN flange, PTFE states an operating temperature range from â200Â°C to +220Â°C and a maximum working pressure up to 300 bar. Those nominal figures indicate the material (PTFE) can tolerate low temperatures down to â200Â°C and, in principle, the gasket can be rated for high pressures. However, the product description explicitly says that the permissible working pressure depends on temperature and medium and that selection should be agreed with TUBES INTERNATIONALÂ®. At cryogenic temperatures the mechanical properties of the gasket and the flange/gasket interface sealing behavior change (hardening, differential contraction, altered gasket stress relaxation and flange gasketability). Additionally, compatibility with the specific cryogenic medium (e.g., liquid nitrogen, liquid hydrogen, oxygen) and pressure cycling must be verified. Practical recommendation: Do not assume suitability based only on the quoted ranges. Contact TUBES INTERNATIONALÂ® with full details (temperature â200Â°C, operating pressure, medium, flange class, DN and PN) to obtain confirmation, any special selection or qualification, and installation/bolting instructions for safe highâpressure cryogenic use.

IBC flat gasket for PN flange, PTFE

All products, Flange couplings/

Additional information

Maximum operating temperature [°C]	220
Minimum operating temperature [°C]	-200

Flat gasket IBC for flange PN made according to standard PN-EN 1514-1. The permissible working pressure at which a given gasket can be used depends on the temperature and type of medium (selection should be agreed with TUBES INTERNATIONAL®). When selecting a gasket, attention should be paid to the outer diameter dimension, appropriate for the flange class. For example: gasket DN 10 PN40 is suitable for classes PN10, PN16, and PN25. Material: PTFE. Working pressure: up to 300 bar. Operating temperature: from -200°C to +220°C.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]	Catalogue
TK-UK-IBC-PN16-100-T-2	Seal IBC for flange PN16 DN100, thickness 2, PTFE	-	-
TK-UK-IBC-PN16-100-T-3	Seal IBC for flange PN16 DN100, thickness 3, PTFE	-	-
TK-UK-IBC-PN16-125-T-2	Seal IBC for flange PN16 DN125, thickness 2, PTFE	-	-
TK-UK-IBC-PN16-125-T-3	Seal IBC for flange PN16 DN125, thickness 3, PTFE	-	-
TK-UK-IBC-PN16-150-T-2	Seal IBC for flange PN16 DN150, thickness 2, PTFE	-	-
TK-UK-IBC-PN16-150-T-3	Seal IBC for flange PN16 DN150, thickness 3, PTFE	-	-
TK-UK-IBC-PN16-200-T-2	Seal IBC for flange PN16 DN200, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-015-T-2	Seal IBC for flange PN40 DN15, thickness 2, PTFE	-	-	-
TK-UK-IBC-PN40-015-T-3	Seal IBC for flange PN40 DN15, thickness 3, PTFE	-	-	-
TK-UK-IBC-PN40-020-T-2	Seal IBC for flange PN40 DN20, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-020-T-3	Seal IBC for flange PN40 DN20, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-025-T-2	Seal IBC for flange PN40 DN25, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-025-T-3	Seal IBC for flange PN40 DN25, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-032-T-2	Seal IBC for flange PN40 DN32, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-032-T-3	Seal IBC for flange PN40 DN32, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-040-T-2	Seal IBC for flange PN40 DN40, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-040-T-3	Seal IBC for flange PN40 DN40, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-050-T-2	Seal IBC for flange PN40 DN50, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-050-T-3	Seal IBC for flange PN40 DN50, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-065-T-2	Seal IBC for flange PN40 DN65, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-065-T-3	Seal IBC for flange PN40 DN65, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-080-T-2	Seal IBC for flange PN40 DN80, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-080-T-3	Seal IBC for flange PN40 DN80, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-100-T-2	Seal IBC for flange PN40 DN100, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-100-T-3	Seal IBC for flange PN40 DN100, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-125-T-2	Seal IBC for flange PN40 DN125, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-125-T-3	Seal IBC for flange PN40 DN125, thickness 3, PTFE	-	-
TK-UK-IBC-PN40-150-T-2	Seal IBC for flange PN40 DN150, thickness 2, PTFE	-	-
TK-UK-IBC-PN40-150-T-3	Seal IBC for flange PN40 DN150, thickness 3, PTFE	-	-

Flat gasket IBC for flange PN made according to standard PN-EN 1514-1. The permissible working pressure at which a given gasket can be used depends on the temperature and type of medium (selection should be agreed with TUBES INTERNATIONAL®). When selecting a gasket, attention should be paid to the outer diameter dimension, appropriate for the flange class. For example: gasket DN 10 PN40 is suitable for classes PN10, PN16, and PN25. Material: PTFE. Working pressure: up to 300 bar. Operating temperature: from -200°C to +220°C.