Is the Guillemin connector gasket, NBR compatible with potable water and food-grade applications?

Guillemin connector gasket, NBR Format . compatibility with potable water and food-grade applications: NBR (nitrile butadiene rubber) is widely used for seals and gaskets thanks to good resistance to oils, fuels and general mechanical properties. However, standard NBR grades are not inherently certified for potable water or food contact. For potable water use you need NBR that meets drinking water standards (e.g., ACS in France, WRAS in the UK, DVGW/KTW in Germany) or national equivalents; for food applications you need food-grade NBR compliant with regulations such as FDA 21 CFR 177.2600 (USA) or EU Regulation (EC) No 1935/2004 and specific positive lists like Regulation (EU) No 10/2011 where applicable. Therefore, Guillemin connector gasket, NBR Format can be suitable for potable water and food-grade uses only if the specific NBR compound is certified for those purposes. If the product description only states âMaterial: NBRâ without listing potable-water or food-contact approvals, assume it is not certified and do not use it in such applications. Request from the supplier documentation/certificates showing compliance with the relevant drinking-water and food-contact standards before use.

Does the Guillemin connector gasket, NBR withstand common industrial chemicals and oils?

Yes. The Guillemin connector gasket, NBR offers good resistance to many common industrial oils, greases, hydraulic fluids, and aqueous solutions. NBR (nitrile rubber) is specifically formulated for oil and fuel resistance, good mechanical strength, and abrasion resistance, making it suitable for typical industrial service where hydrocarbons are present. Limitations: NBR is less resistant to strong acids, strong alkalis, ketones (e.g., acetone), aromatic hydrocarbons, and chlorinated solvents. High temperatures (above ~100â120Â°C continuous) and ozone/UV exposure also degrade NBR faster than specialty elastomers. For aggressive chemicals, solvents, or elevated-temperature applications, select a gasket material with proven compatibility (e.g., Viton/FKM, EPDM, or PTFE) and verify with chemical compatibility charts or supplier data.

How resistant is the Guillemin connector gasket, NBR to high temperatures and thermal cycling?

The Guillemin connector gasket, NBR offers moderate resistance to elevated temperatures and to thermal cycling, typical for NBR (nitrile butadiene rubber) material. General characteristics: - Temperature range: NBR gaskets commonly perform well from about -30 Â°C up to +100 Â°C (some formulations tolerate brief exposure up to â120 Â°C). Continuous use above ~100 Â°C shortens service life. - Heat aging: NBR resists heat aging reasonably but is less stable than fluoroelastomers (e.g., FKM). Prolonged exposure to high temperatures accelerates hardening, loss of elasticity and eventual cracking. - Thermal cycling: NBR tolerates repeated temperature swings within its operating range, maintaining sealing performance if cycles stay well inside limits. Repeated or rapid cycling to near or above its upper temperature limit increases risk of embrittlement, compression set and leakage over time. - Application note: Chemical exposure (e.g., oils, fuels) and mechanical load influence thermal performance; NBR is oil-resistant which helps in many Guillemin coupling uses, but combined chemical and thermal stress reduces longevity. - Practical guidance: For typical industrial fluid transfer at ambient to moderately elevated temperatures, the Guillemin connector gasket, NBR is a reliable choice. For continuous service above ~100 Â°C, frequent thermal cycling, or critical high-temperature applications, consider higher-temperature elastomers (e.g., EPDM, FKM) or metal-reinforced designs. If you need a specific temperature rating or cycling life for a given formulation, request manufacturer datasheet or test results for that gasket batch.

Guillemin connector gasket, NBR

All products, Symmetrical claw couplings/

Additional information

Flat gasket for Guillemin connection. Material: NBR.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
GU-U-075-NBR	GUILLEMIN connector gasket DN 20, NBR	-	-
GU-U-100-NBR	GUILLEMIN connector gasket DN 25, NBR	-	-
GU-U-125-NBR	GUILLEMIN joint gasket DN 32, NBR	-	-
GU-U-150-NBR	GUILLEMIN DN 40 connector gasket, NBR	-	-
GU-U-200-NBR	GUILLEMIN DN 50 joint gasket, NBR	-	-
GU-U-250-NBR	GUILLEMIN DN 65 joint gasket, NBR	-	-
GU-U-300-NBR	GUILLEMIN DN 80 joint gasket, NBR	-	-
GU-U-400-NBR	GUILLEMIN DN 100 joint gasket, NBR	-	-