（一）Product Overview
YY-FF series multi-filter filter is the main product of our company. It has the characteristics of high dust removal efficiency, low operating pressure, large processing flow and so on. It is applicable to a wide range of accuracy, especially for the filtration of fine floating dust, widely used in gas pressure regulating station, gas distribution station and city gate station gas transmission and distribution system. It plays an important role in protecting voltage regulator, flowmeter, valve and other equipment in the whole system.

（二）Applicable media: natural gas, artificial gas, liquefied petroleum gas and other non-corrosive gases

（三）Product technical features：
Design pressure： 1.6MPa \2.5MPa\4.0MPa\6.3MPa\10MPa
Filter precision：0.5um\1um\2um\5um\10um
Filtration efficiency：>99.8%
Operating temperature：-10℃~60℃
Filter element Model: PPEF-336 (PECO, USA)