Endress+Hauser Proline Promag - Page 36

Appendix Proline Promag
36 Endress+Hauser
Screw tightening torques for ASME B16.5; Class 150, 300
Nominal diameter Pressure rating Screws Max. screw tightening torque [Nm]
([lbf · ft])
[mm] [in] [psi] [in] PTFE PFA
15 ½ Class 150 4 × ½ 6 (4) – (–)
15 ½ Class 300 4 × ½ 6 (4) – (–)
25 1 Class 150 4 × ½ 11 (8) 10 (7)
25 1 Class 300 4 × 5/8 14 (10) 12 (9)
40 1 ½ Class 150 4 × ½ 24 (18) 21 (15)
40 1 ½ Class 300 4 × ¾ 34 (25) 31 (23)
50 2 Class 150 4 × 5/8 47 (35) 44 (32)
50 2 Class 300 8 × 5/8 23 (17) 22 (16)
80 3 Class 150 4 × 5/8 79 (58) 67 (49)
80 3 Class 300 8 × ¾ 47 (35) 42 (31)
100 4 Class 150 8 × 5/8 56 (41) 50 (37)
100 4 Class 300 8 × ¾ 67 (49) 59 (44)
150 6 Class 150 8 × ¾ 106 (78) 86 (63)
150 6 Class 300 12 × ¾ 73 (54) 67 (49)
200 8 Class 150 8 × ¾ 143 (105) 109 (80)
250 10 Class 150 12 × 7/8 135 (100) – (–)
300 12 Class 150 12 × 7/8 178 (131) – (–)
350 14 Class 150 12 × 1 260 (192) – (–)
400 16 Class 150 16 × 1 246 (181) – (–)
450 18 Class 150 16 × 1 1/8 371 (274) – (–)
500 20 Class 150 20 × 1 1/8 341 (252) – (–)
600 24 Class 150 20 × 1 ¼ 477 (352) – (–)
Screw tightening torques for JIS B2220; 10, 20K
Nominal diameter Pressure rating Screws Max. screw tightening torque [Nm]
[mm] [bar] [mm] PTFE PFA
25 10K 4 × M16 32 27
25 20K 4 × M16 32 27
32 10K 4 × M16 38 –
32 20K 4 × M16 38 –