What is UL 957?

Introduction

UL 957, also known as the Standard for Power-Operated Dispensing Devices, is a technical standard developed by Underwriters Laboratories (UL), a nonprofit safety testing and certification organization. This standard specifically focuses on power-operated dispensing devices that are commonly used in various industries, including automotive, agriculture, and manufacturing.

Key Requirements of UL 957

UL 957 sets forth a series of requirements that these power-operated dispensing devices must meet to ensure their safety and reliability. One of the key requirements is related to electrical safety. The standard specifies guidelines for proper grounding, insulation, and wiring methods to minimize the risk of electric shock and fire hazards.

In addition, UL 957 regulates the mechanical components of these devices. It outlines requirements for the design and construction of pumps, valves, hoses, and connectors to ensure they can withstand the intended use and maintain performance over time.

Testing and Certification Process

To comply with UL 957, manufacturers of power-operated dispensing devices need to undergo rigorous testing and certification procedures. First, the manufacturer submits the device and all relevant documentation to a third-party testing laboratory recognized by UL. The laboratory then evaluates the device against the requirements stated in UL 957.

If the device successfully passes all the tests, the manufacturer receives a UL listing or recognition. This means that the device has been independently verified to meet the safety standards outlined in UL 957 and is deemed suitable for use in various applications.

Benefits of UL 957 Compliance

Compliance with UL 957 brings several benefits to both manufacturers and end-users. For manufacturers, UL certification enhances their product's marketability and credibility. It demonstrates their commitment to producing safe and reliable devices, giving customers confidence in their products.

For end-users, UL 957 compliance ensures the safety and reliability of power-operated dispensing devices. Whether it's a fuel pump at a gas station or an industrial adhesive dispenser, knowing that the device has undergone stringent testing helps mitigate potential risks and promotes a safer work environment.

In conclusion, UL 957 plays a crucial role in ensuring the safety and performance of power-operated dispensing devices. By establishing comprehensive requirements and conducting rigorous testing, this standard helps protect both manufacturers and end-users, fostering trust in the quality and reliability of these devices.