We offer m-35 "m" series flame spreading ring burners. These are ideal heavy duty burners for use in general cooking especially for colloidal solutions for example milk & other dairy products. They can also be used by the chemical & pharmaceutical industries where heating by conduction is required. these burners are recommended to be used at a pressure of 0.3 kgcm2 (4.5 psig), however, this may be varied by ± 25% the heat output being varied accordingly.