SPP id: Version 14 > / 150201 / Replaces 140901 / en /
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Series
2.15
INSTRUCTIONS
February 2015
Page
ISO
G
COPYRIGHT © SULZER PUMPS FINLAND OY
ORIGINAL INSTRUCTION
USER'S MANUAL – AHLSTAR
Safety instructions
8 The screws used in the calculations are full-threaded hexagon head screws in accordance with ISO 4017.
The inch-sized screws are ANSI B18.2.1 UNC.
9 The values have been calculated according to ASME BPVC VIII-8 so that the stresses in the flange do not
exceed 0.8 x yield strength of the flange at the design temperature of 180°C. It should be noted that these
are the maximum torques in accordance with the strength of the flange, and the actual torque must be
selected on the basis of the seal used and the operating conditions.
W A R N I N G
The maximum torque values given in Table 15 must be multiplied by the following factors: 0.4 for a
titanium case, 0.55 for a carbon steel case, 1.0 for a duplex steel case and stainless steel case.
Table 15,
Flange drillings of steel cases, maximum torques
DN
Torque (Nm)
EN 1092-1 PN10
EN 1092-1 PN16
EN 1092-1 PN25
8.8 12.9 8.8 12.9 8.8 12.9
32 90 90 90 90 90 90
40 120 120 120 120 120 120
50 180 180 180 180 180 180
65 150 150 150 150 150 150
80 170 170 170 170 170 170
100 220 220 220 220 220 220
125 270 270 270 270 350 350
150 410 410 410 410 410 410
200 450 450 300 300 280 280
250 520 520 580 580 520 520
300 620 690 690 690 440 440
350 410 410 430 430 430 430
400 800 800 780 780 670 670
500 1080 1260 1050 1050 1030 1030
600 1530 1530 1090 1090 1220 1220
700 1590 2110 2610 2610 2000 2000
DN
Torque (Nm)
ASME B16.5 Class 150
ASME B16.5 Class 300
JIS B 2220 16K
8.8 12.9 8.8 12.9 8.8 12.9
32 100 100 100 100 90
90
40 160 160 140 140 130 130
50 200
200
80 80 100 100
65 350 350 160 160 170 170
80 420 420 180 180 220 220
100 170 170 180 180 250 250
125 290 290 210 210 280 280
150 390 390 160 160 210 210
200 400 400 200 200 270 270
250 470 470 300 300 400 400
300 470 470 380 380 390 390
350 550 550 260 260 460 460
400 600 600 440 440 690 690
500 1200
1200
660 660 450 450
600 1310
1310
790 790 -
-
700 1580 1580 1120 1120
-
-