Can the Smooth PTFE Hose with Dual 304 Steel Braid for High-Pressure Gas, -70°C to +260°C, 180–225 bar be safely used above +130°C if I reduce the working pressure by 0.75% per °C?

Yes — but only if you apply the specified derating precisely. Product: Smooth PTFE Hose with Dual 304 Steel Braid for High-Pressure Gas, -70°C to +260°C, 180–225 bar Format Specs state the hose is rated to +260°C, with baseline working pressures 180–225 bar (depending on diameter). For temperatures above +130°C you must reduce the maximum working pressure by 0.75% for every 1°C above +130°C. How to check safely: - Determine the hose’s nominal maximum working pressure for your diameter (use the correct value between 180 and 225 bar). - Calculate temperature rise ΔT = (actual temperature) − 130°C. - Compute reduced allowable pressure = nominal pressure × [1 − 0.0075 × ΔT]. - Ensure your system maximum operating pressure never exceeds this reduced allowable pressure, including transients, spikes and safety margins. Example: for a 225 bar hose at +150°C (ΔT = 20°C): allowable = 225 × [1 − 0.0075×20] = 225 × 0.85 = 191.25 bar. Additional requirements: - Use AF-TL series fittings and sleeves as specified to maintain leak-free connections. - Account for dynamic loads, pressure spikes, chemical compatibility and installation factors (bend radius, support, vibration). - If operating near limits, consult manufacturer or perform application-specific validation. Conclusion: Yes, the hose can be used above +130°C if you reduce working pressure by 0.75%/°C and verify all system conditions comply with the derated pressure and installation requirements.

Does the Smooth PTFE Hose with Dual 304 Steel Braid for High-Pressure Gas, -70°C to +260°C, 180–225 bar require special fittings or derating when used with aggressive or penetrating media at elevated temperatures?

Short answer: Yes — special fittings and derating are required for aggressive or penetrating media at elevated temperatures. Details: The Smooth PTFE Hose with Dual 304 Steel Braid for High-Pressure Gas, -70°C to +260°C, 180–225 bar Format is manufactured from low‑porosity Teflon and features a robust double 304 stainless steel braid, giving excellent chemical resistance and mechanical strength. However, when used with aggressive or penetrating media and especially above +130°C, you must: - Apply the specified temperature derating: reduce maximum working pressure by 0.75% for every degree above +130°C. This derating ensures safe working pressures at elevated temperatures. - Use compatible, recommended fittings: the description specifies AF‑TL series fittings and sleeves to achieve secure, leak‑free connections. For aggressive media, confirm that all wetted components (ferrules, sleeves, fittings) are chemically compatible with the media and temperature to avoid degradation or permeation. - Consider additional measures for penetrating media: for highly aggressive or permeating fluids/vapors, verify hose end assembly procedures, consider secondary containment or sealing, and inspect for permeation and compatibility over time. Conclusion: Follow the derating rule above +130°C and fit the hose with appropriate, compatible AF‑TL series (or equivalently rated) fittings and sleeves; verify chemical compatibility of all wetted parts for aggressive/penetrating media to ensure safe, leak‑free operation.

Smooth PTFE Hose with Dual 304 Steel Braid for High-Pressure Gas, -70°C to +260°C, 180–225 bar

All products, PTFE hoses/

Additional information

Material	PTFE – teflon and similar
Maximum operating temperature [°C]	260
Minimum operating temperature [°C]	-70
Vacuum resistance	no
Standard length [m]	40
Reinforcement	2 steel braids

The smoothbore PTFE hose with reinforced wall is engineered from specially processed Teflon with reduced microporosity, ensuring exceptional resistance when working with high-pressure gases and other aggressive or penetrating media. Its robust double braid of premium 304 stainless steel provides outstanding durability, safety, and reliability even in the most demanding industrial environments. Designed to perform under extreme conditions, the hose operates within a wide temperature range from -70°C up to +260°C, while maintaining working pressures between 180 and 225 bar depending on diameter. For applications exceeding +130°C, the maximum working pressure should be reduced by 0.75% for every additional degree, guaranteeing safe and efficient performance. When combined with AF-TL series fittings and sleeves, the system delivers a secure, leak-free connection, making it an ideal solution for industries requiring uncompromising quality, such as chemical processing, energy, and high-tech manufacturing.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
AF-HWDB-HPG-06	SMOOTHBORE HWDB/HPG hose for gases 1/4"	6	225	In stock	Enquiry
AF-HWDB-HPG-08	SMOOTHBORE HWDB/HPG hose for gases 5/16"	8	217	In stock	Enquiry
AF-HWDB-HPG-10	SMOOTHBORE HWDB/HPG hose for gases 3/8"	10	180	In stock	Enquiry

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The smoothbore PTFE hose with reinforced wall is engineered from specially processed Teflon with reduced microporosity, ensuring exceptional resistance when working with high-pressure gases and other aggressive or penetrating media. Its robust double braid of premium 304 stainless steel provides outstanding durability, safety, and reliability even in the most demanding industrial environments. Designed to perform under extreme conditions, the hose operates within a wide temperature range from -70°C up to +260°C, while maintaining working pressures between 180 and 225 bar depending on diameter. For applications exceeding +130°C, the maximum working pressure should be reduced by 0.75% for every additional degree, guaranteeing safe and efficient performance. When combined with AF-TL series fittings and sleeves, the system delivers a secure, leak-free connection, making it an ideal solution for industries requiring uncompromising quality, such as chemical processing, energy, and high-tech manufacturing.

Additional information

Material	PTFE – teflon and similar
Maximum operating temperature [°C]	260
Minimum operating temperature [°C]	-70
Vacuum resistance	no
Standard length [m]	40
Reinforcement	2 steel braids