Australian Pipeline Valve - Installation, Operation and Maintenance Manual 22 SIDE ENTRY 2P TRUNNION BALL VALVES API6D STANDARD - FS9000 SERIES A P P E N D I X 1 BODY BOLTING TORQUES TABLE 1 Note: (1) Torques shown are for A193 B7/B7M/B8/B8M and A320 L7/L7M/B8/B8M. (2) Torque tolerance ±10%. (3) For temperatures above 750°F (400°C) use 75% of the torque values. (4) Above torque values are with the bolts lubricated. (5) Values above are based on 30,000 psi (206.85 Mpa) bolting stress and lubricated with heavy graphite and oil mixture or a copper based anti-seize grease. (6) Do not exceed by more than 25% of values stated when emergency torquing is required. (7) All bolts shall be torqued in the pattern as shown in Diagram 1 to ensure uniform gasket loading. (8) Optimum torque can vary depending on type of body gasket but do not increase torque more than 10% above those shown. (9) Consult us for other bolt material. (10) Most B8M and B8 bolts are class 1 so do not assume class 2 unless you are sure. DIAGRAM 1 Bolting torque sequence: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 3/8 - 16 UNC 15 (20) 20 (27) 15 (20) 20 (27) 7/16 - 14 UNC 25 (34) 30 (41) 22 (30) 25 (34) 1/2 - 13 UNC 40 (54) 50 (68) 35 (47) 45 (61) 9/16 - 12 UNC 55 (75) 70 (95) 55 (75) 65 (88) 5/8 - 11 UNC 75 (102) 100 (136) 70 (95) 85 (115) 3/4 - 10 UNC 135 (183) 170 (231) 125 (170) 150 (203) 7/8 - 9 UNC 200 (271) 270 (366) 170 (230) 200 (271) 1 - 8 UNC 350 (475) 400 (542) 219 (298) 350 (475) 1 1/8 - 8 UN 500 (678) 520 (705) 256 (398) 450 (610) 1 1/4 - 8 UN 675 (915) 850 (915) 321 (498) 650 (881) 1 3/8 - 8 UN 900 (1220) 1200 (1627) 384 (598) 900 (1220) 1 1/2 - 8 UN 1200 (1627) 1500 (2034) 1200 (1627) 1 5/8 - 8 UN 1600 (2170) 2000 (2712) 1 3/4 - 8 UN 2000 (2712) 2500 (3390) 1 7/8 - 8 UN 2500 (3390) 3100 (4204) 2 - 8 UN 3000 (4068) 3800 (5153) 2 1/8 - 8 UN 3600 (4882) 4500 (6102) 2 1/4 - 8 UN 4400 (5966) 5400 (7322) 2 1/2 - 8 UN 6000 (8136) 7500 (10170) 1501 (2035) 1907 (2585) 2357 (3195) 2876 (3898) Bolting Material B7M/L7M B7/B16/L7 B8/B8M CL.1 B8/B8M CL.2 Stud Size