Juntas tóricas listadas en UL 157

UL-Listed O-Rings Overview

Underwriters Laboratories (UL) is an independent organization that evaluates and certifies products for safety and performance. For elastomeric seals like o-rings, UL 157 is the primary standard for assessing suitability under specific end-use conditions.

Achieving UL certification under UL 157 signifies that an o-ring has met rigorous safety and performance standards. This certification is crucial for industries where reliability is of the utmost importance, as it ensures the seals perform effectively in their designated applications.

UL 157 Testing Criteria

UL 157 outlines test procedures and performance criteria for o-rings. The standard evaluates elastomeric seals against several critical properties to ensure their suitability for demanding applications. Materials undergo thorough testing to ensure performance stability under accelerated aging and specific environmental conditions like chemical exposure, fuel compatibility, and ozone resistance. Key evaluated properties include:

Material Compatibility

UL 157 certification covers various elastomeric compounds that each meet specific application criteria. Global O-Ring and Seal offers several UL-listed compounds recognized with specific end-use codes that align with UL’s stringent performance standards. The table below details Global O-Ring’s relevant compounds and their corresponding UL 157 code coverage:

Compuestos	Material	Durómetro	Color	Rango de temperatura (F)	Shop	Descripción
C70-B101	Neoprene	70	Black	-40 to +212		UL 157
E70-B108	EPDM	70	Black	-67 to +302		UL 157
F70-B401	Fluorosilicone	70	Blue	-76 to +350		FDA Compliant, UL 157 Certified
N50-B102	NBR	50	Black	-40 to +212		UL 157
N70-B103	NBR	70	Black	-40 to +212		UL 157
N80-B102	NBR	80	Black	-40 to +212		UL 157
S70-B602	Silicone	70	Red	-67 to +437		UL 157
V70-B101	FKM	70	Black	-40 to +482		UL 157
V75-B101	FKM	75	Black	-13 to +482		Genuine Viton®, UL157

UL 157 End-Use Application Codes

Certification and Inquiries

UL-certified o-rings are associated with specific file numbers or certification identifiers for transparency and verification. Global O-Ring can provide our specific UL file number upon request, and you can visit our listing on the UL Product iQ. For more information or to confirm your requirements are met, please call us at 832-448-5550 or submit the Product Inquiry form.