Valve description: LIFT Check Valve, FLANGE, integral seat. Design: API 602. Body: ASTM A350 LF2 Nominal size: 1 INCH. Nominal class: 150 LB. End Connection: RF. Face to face: ASME B16.10. Test and inspection: API 598 Product Range: Body material: Low temperature-Carbon Steel. Normal diameter: 1/2 - 20 Inch (DN15 - DN500). End connection: FLANGE, BW. Pressure range: Class 150 - 1500 LB (PN16 - PN250). Working temperature: -45℃ - 400℃.