Fuel Nozzles, Hoses & Meters

Selecting Between Manual and Automatic Fuel Nozzles

Manual nozzles offer simple, mechanical fluid control for basic gravity feed or low-pressure pumps. Models like the FLM-3 plastic dispenser handle flow rates up to 45 L/min with 20 mm or 25 mm inlets. They suit open container filling where an operator monitors the fluid level continuously.

An automatic fuel nozzle protects against spills and overfilling in high-volume vehicle or tank operations. These units use an internal venturi tube near the spout tip to trigger an automatic cut-off when the liquid reaches capacity. Typical aluminum alloy models support flow rates from 0 to 60 L/min, featuring 19 mm (3/4 in) inlets and 24 mm out-spouts for diesel, petrol, and kerosene.

Choosing the Right Diesel Flow Meter and Display Type

Tracking dispensed volume requires matching the meter design to your power availability and accuracy requirements. Inline meters install directly into discharge lines or connect at the nozzle inlet for point-of-use reading.

You can choose between two main display architectures based on site conditions:

• Mechanical registers: Units with a 4-digit mechanical counter need no battery power. They provide ±1% accuracy and handle diesel, fuel oil, and light lubricants in remote environments.
• Digital turbine meters: Models like the K24 turbine flow meter feature an electronic digital LCD. They monitor flow rates across 3/4-inch to 2-inch line sizes and work with diesel, water, and select chemicals.
• Integrated meter guns: These combine a dispensing handle and a digital fuel flow meter into a single body for compact, portable fueling.

Material Selection and System Sizing

Fluid chemistry dictates housing material. Standard aluminum alloy bodies suit petroleum products like diesel, gasoline, and fuel oil. If transferring corrosive liquids, liquid chemicals, water, or urea solutions, choose a stainless steel nozzle or meter to prevent oxidation and internal wear.

Size your fuel transfer hose and fittings to avoid pump strain and flow restriction. Match the inner diameter of the hose to the pump discharge and the nozzle inlet, typically 19 mm (3/4 inch) or 25 mm (1 inch). Using undersized hoses creates backpressure, which can cause an automatic fuel nozzle to shut off prematurely.