The double 3.75 "end muffler is made of T-304 stainless steel TIG welding, with limited lifespan guarantee, stainless steel mesh core, and high-quality fiberglass packaging. The resistance loss of the muffler can generally be expressed by negative pressure difference and resistance coefficient. Considering that the cross-sections of the inlet and outlet of the muffler are different and the airflow velocity is equal, the dynamic pressure is the same, and the resistance loss depends only on the change in negative pressure. The negative pressure difference is defined as the negative pressure difference between the inlet and outlet of the muffler, and the negative pressure difference is defined as the dynamic pressure ratio on the end face of the measuring point. The smaller the negative pressure difference and resistance coefficient, the smaller the resistance loss of the muffler.
