ROKE brand stainless steel double-ferrule straight-through filter is applicable to English pipe 1/8 "- 1/2" and metric pipe 3-14mm. Materials include SS316, SS304, duplex stainless steel, C276, Inconel, Monel and other alloys. Ferrule heat treatment, connecting thread UNF, made according to ASME standards. The nuts are silver-plated and the proprietary sealing glaze layer is added, which greatly reduces the torque without affecting the sealing, especially in the case of narrow space or aerial operation, making the installation easier. The maximum working pressure is 689bar and the maximum working temperature is 454 degree . It is applicable to petroleum, chemical, electric power, shipbuilding, marine engineering, water treatment, laboratory, heavy machinery and other industries.