(1)正向流锥形临时过滤器(PFC-I型)(DN25—600,PN≤5.OMPa) (2)反向流锥形临时过滤器(PFC-II型)(DN25—600,PN≤5.OMPa) (3)平底临时过滤器(PFC-II型)(DN25~600,PN≤5.OMPa)