What Is the Difference Between a Prepay Nozzle and an Automatic Shutoff Nozzle?

When selecting a fuel dispensing nozzle, it's important to understand the differences between a prepay nozzle and an automatic shutoff nozzle. While both are designed to safely dispense fuel, they operate differently and are intended for different fueling environments.

What Is a Prepay Nozzle?

A prepay nozzle is commonly used at retail fueling stations where customers pay before pumping fuel. These nozzles require the fueling system to be recharged or reauthorized before fueling can begin.

This added layer of control helps prevent accidental spills. If the nozzle's hold-open clip were to fail or remain engaged, fuel will not continue flowing because the system must first receive authorization to dispense fuel. Once the authorized amount has been dispensed or the fueling session ends, the system must be reset before fueling can resume.

Benefits of a Prepay Nozzle

• Helps reduce the risk of fuel spills.
• Requires authorization before each fueling session.
• Commonly used at retail gas stations and commercial fueling sites with payment systems.
• Adds an extra level of safety and control during fueling.

What Is an Automatic Shutoff Nozzle?

An automatic shutoff nozzle is designed to stop the flow of fuel once the vehicle's tank reaches full capacity. Inside the nozzle is a sensing mechanism that detects when fuel reaches the end of the filler neck, automatically shutting off the flow to help prevent overfilling.

Unlike a prepay nozzle, an automatic shutoff nozzle does not require the fueling system to be reauthorized after each fueling session. Its primary function is to automatically stop dispensing fuel when the tank is full.

Benefits of an Automatic Shutoff Nozzle

• Automatically stops fueling when the tank is full.
• Helps prevent overfilling and fuel waste.
• Simple and convenient for everyday fueling.
• Commonly used in fleet, agricultural, industrial, and commercial fueling applications.

Which Nozzle Is Right for Your Application?

The best choice depends on how and where you dispense fuel.

A prepay nozzle is ideal for fueling systems that require authorization before dispensing fuel, such as retail gas stations or other payment-controlled fueling applications.

An automatic shutoff nozzle is a great option for applications where the goal is to safely fill a tank without overfilling, making it a popular choice for fleet fueling, farms, construction sites, and commercial operations.

Find the Right Fuel Dispensing Equipment at JME

Whether you're replacing an existing nozzle or building a complete fueling system, choosing the correct nozzle helps improve safety, reduce spills, and keep fueling operations running efficiently.

JME offers a wide selection of fuel dispensing nozzles, from aircraft and farm nozzles to DEF, cold weather, and poly dispensing nozzles. We carry trusted brands like OPW, M. Carder, Husky, and Catlow.

If you have any questions about Prepay or an Automatic Shutoff Nozzles, give us a call at 1 (800) 333-3331 or contact us, one of our experts would be happy to help!