Appendix Proline Promag
44 Endress+Hauser
Nominal diameter Pressure rating Screws Max. screw tightening torque [Nm]
[mm] [bar] [mm] Hard rubber Polyurethane
1 000 PN 10 28 × M33 402 405
1 000 PN 16 28 × M39 502 518
1 000 PN 25 28 × M52 970 971
1 200 PN 6 32 × M30 319 299
1 200 PN 10 32 × M36 564 568
1 200 PN 16 32 × M45 701 753
1 400 PN 6 36 × M33 430 398
1 400 PN 10 36 × M39 654 618
1 400 PN 16 36 × M45 729 762
1 600 PN 6 40 × M33 440 417
1 600 PN 10 40 × M45 946 893
1 600 PN 16 40 × M52 1 007 1 100
1 800 PN 6 44 × M36 547 521
1 800 PN 10 44 × M45 961 895
1 800 PN 16 44 × M52 1 108 1 003
2 000 PN 6 48 × M39 629 605
2 000 PN 10 48 × M45 1 047 1 092
2 000 PN 16 48 × M56 1 324 1 261
1) Designed acc. to EN 1092-1 (not to DIN 2501)
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] Hard rubber Polyurethane
25 1 Class 150 4 × ½ – 7 (5)
25 1 Class 300 4 × 5/8 – 8 (6)
40 1 ½ Class 150 4 × ½ – 10 (7)
40 1 ½ Class 300 4 × ¾ – 15 (11)
50 2 Class 150 4 × 5/8 35 (26) 22 (16)
50 2 Class 300 8 × 5/8 18 (13) 11 (8)
80 3 Class 150 4 × 5/8 60 (44) 43 (32)
80 3 Class 300 8 × ¾ 38 (28) 26 (19)