Valve description: LIFT Check Valve, CARBON steel, NPS 3/4 Inch, 800 LB. Design: API 602. Body: ASTM A105N Nominal size: 3/4 INCH. Nominal class: 800 LB. End Connection: NPT. Face to face: MFG'S. Test and inspection: API 598. Product Range: Body material: CARBON Steel. Normal diameter: 1/2 - 2 Inch (DN15 - DN50). End connection: NPT, SW, BW, FLANGE. Pressure range: Class 150 - 2500 LB (PN16 - PN420). Working temperature: -29℃ - +425℃.