Model No.: CVCF8M 900LB-14 Clicks: 439 ASTM A351 CF8M check valves, RF flange end body. Model: 14 Inch, 900 LB. Material: ASTM A351 CF8M. Valve standard: BS 1868. Face to face dimension: 1029 mm. Maching tolerance control: GB/T 1804. ASTM A351 CF8M Check Valves, BS 1868, RF flange, 900 LB Key Specifications / Features Standards and range: – Design basis: ASME B16.34, GB 12236, API 6D. – Flanged ends: ASME B16.5, GB 9113. – Butt-welding ends: ASME B16.25. – Face-to-face dimension: ASME B16.10, GB 12221. – Inspection and test: API 598, API 6D, JB/T 9092. – Pressure rating: Class150 –