Toshiba LF664 Instruction Manual page 18

Table 4.1 Number of bolts, size and recommended bolt torque
Meter size
Number of bolts
[inch (mm)]
20" (500)
24" (600)
28" (700)
30" (750)
32" (800)
36" (900)
40" (1000)
42" (1050)
48" (1200)
54" (1350)
60" (1500)
66" (1650)
72" (1800)
78" (1950)
*1: 1[N
･m] is 0.7376 [ft･lbf].
Upstream flange
Packing
Figure 4.1 The LF664 detector piping connections
Bolt size
[inch]
20 1-1/8
20 1-1/4
28 1-1/4
28 1-1/4
28 1-1/2
32 1-1/2
36 1-1/2
36 1-1/2
44 1-1/2
44 1-3/4
52 1-3/4
52 1-3/4
60 1-3/4
64 2
Detector
— —
17
６Ｆ８Ａ０９４３
Bolt torque *1
Flange standard
[N･m]
199〜249
305〜381
268〜335
310〜387
416〜520
450〜562
450〜562
571〜713
AWWA class D
570〜712
830〜1037
863〜1078
1058〜1323
1066〜1332
1431〜1789
Downstream flange
Connection bolt
ANSI 150
Flow direction