SABAF Gas Stove Nozzle Sizing Chart: Matching BTU, Gas Pressure & Type

Getting the nozzle right is the single most important step in a clean-burning, efficient gas stove. The nozzle meters fuel into the burner, and even a fraction of a millimeter of aperture error shows up as yellow flames, sooting, or wasted gas. This guide maps nozzle aperture to the three variables that decide it: heat output, supply pressure, and gas type.

The Three Variables That Set Nozzle Size

Every burner has a target BTU (heat output). To hit that target safely, the nozzle must pass the right volume of gas, and that depends on two things: the supply pressure and the gas type.

• Gas type — LPG (propane/butane) carries far more energy per unit volume, so it needs a smaller aperture. Natural gas is lower-energy and needs a larger aperture.
• Supply pressure — LPG typically runs at 28-37 mbar; natural gas at 18-25 mbar. Higher pressure pushes more fuel through the same hole.
• BTU target — larger burners need more flow, so the aperture scales up with rated output.

Reading a Sizing Chart

A practical sizing chart has gas type on one axis and burner output on the other, with the matching aperture at each intersection. For example, a small LPG auxiliary burner may call for a 0.55mm aperture, while a large natural-gas wok burner may need 1.20mm or more. The chart turns guesswork into a lookup.

Why the 0.45mm-1.35mm Range Covers Almost Everything

THREEMI manufactures nozzles in 16 aperture sizes from 0.45mm to 1.35mm, all on a unified M6x0.75 thread. That standardized thread plus the full aperture range lets a single distributor serve every SABAF-compatible burner in their market, across both gas types.

Stock the Whole Range

Because the correct aperture depends on gas type and pressure, installers converting a stove from LPG to natural gas — or vice versa — always need the other end of the chart. Stocking the full 0.45mm-1.35mm range means you are the one-stop source for every conversion and replacement job.

About THREEMI

THREEMI is the export brand of Shenzhen Sanmi Manufacturing Co., Ltd., a professional gas stove and kitchen appliance factory in Guangdong, China. With 400+ employees, a 20,000㎡ production facility, and an annual output of 3 million units, we serve wholesalers, distributors, brand owners, and e-commerce sellers in over 30 countries. Our factory is certified ISO9001, CCC, CE, UL, GS, ETL, NF, and SASO.

Welcome Wholesale Gas Stove Parts Orders

We supply the complete gas stove parts range — SABAF-compatible burner caps, nozzles (0.45mm–1.35mm), flame spreaders, burner sets, ignition parts, thermocouples, and valve bodies — factory-direct at wholesale prices with flexible carton MOQ.

WhatsApp: +86 186 7003 0673
Email: logan@threemi.com
Website: www.threemi.com