RETENTION VALVE; ACO CARBON BODY MATERIAL ASTM A105; EXTREMITY TYPE FACE WITH SURFACE; ASME B16.5 RF EXTREMITY STAND; ACO INOX SHUTTER MATERIAL; PRESSURE CLASS 300 LB; SUCCAO FLANGE DN 8 POL; DISCHARGE FLANGE DN 8 POL; RECIRCULATION FLANGE DN 4 POL; MANUAL START FLANGE DN 3 POL; PROJECT TEMPERATURE 140 DEGREE C; VAZAO Q 100-666.00M3 / H; H100 – 250.00 M; VAZAO QM – 130.00M3 / H; HM = 318.00 M; VAZAO QA – 130.00 M3 / H; HA-318.00 M; DIFFERENTIAL PRESSURE 29.31 BAR (P DIFF = P1-PN); MATERIAL A167 301 (X12CRNI17 7) AS STANDARD ASTM / AISI; NOTE: BEFORE THE APPROVAL OF THE PROPOSALS THE AREA SHOULD ISSUE THE AGREEMENT WHERE THE TECHNICAL DOCUMENTATION MUST BE SUBMITTED FOR VALIDATION CONTAINING THE TECHNICAL SPECIFICATIONS AND JOINT DRAWINGS WITH MAIN QUALIFICATIONS FOR VALIDACATION; SCHROEDAHL – TDL155UVWWAWS-CS; DURCON – VRM-HPM FIGURE 2511AV8; SCHUF FETTEROLF – MODEL 78PS -KOR-OAWCB1