The flame spreader looks like a simple metal disc, but its hole pattern is precision engineering. The number, size, and arrangement of its ports determine how evenly the gas-air mixture burns, how stable the flame is, and how efficiently the burner uses fuel. For parts distributors who want to sell spreaders that actually perform, understanding port design is a real competitive edge.
The flame spreader receives the gas-air mixture from the venturi and pushes it out through a ring of ports. When those ports are uniform in size and evenly spaced, the flame emerges as a clean, even ring. When they are irregular, the flame flickers, produces yellow tips, and wastes gas — a sign of poor combustion that customers notice immediately.
More ports spread the flame more finely, giving a smoother, more even heat distribution across the cookware. But the spacing matters as much as the count. Ports too close together can cause flames to merge and starve each other of secondary air; too far apart leaves cold spots on the pan. A well-designed spreader balances port density with air access.
Port diameter must match the burner's gas flow rate. Ports that are too small restrict the flame and raise back-pressure; too large and the flame lifts off the burner and roars inefficiently. The correct port size keeps the flame seated and stable across the burner's full heat range.
Even a perfect design fails if the material is inconsistent. A spreader cast or pressed with precise, uniform ports — made from the right high-temperature alloy — holds its pattern through years of thermal cycling. Cheap spreaders with irregular ports degrade combustion from the first use.
THREEMI manufactures SABAF-compatible flame spreaders with precision-engineered port patterns, available factory-direct at wholesale prices with flexible carton MOQ. When you stock spreaders that burn clean and even, your customers come back — and so do their customers.
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.
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
© 2026. All Rights Reserved.