Triad Series 66FD
Fire
Rated
Valve
Manual 66.doc
02/19/2004
except one.
Loosen the nut on the remaining bolt.
Swing the body outside the pipe.
6.3 Finish welding both end caps on the pipe.
6.4
When cooled down, clean both end caps and body surface.
6.5
Swing the body back in position and replace the bolts. Tighten all nuts slightly. This
Operation is very important, to keep body and end caps perfectly parallel, thus preventing
distortion of the end caps.
6.6
Tighten body bolts evenly. Make sure that maximum tightening torque is observed.
6.7
Check proper operation of the valve.
BOLT TIGHTENING SPECIFICATIONS
The body bolts of the valve should be tightened evenly.
Tighten one-side snugly, then the one diagonal across.
Repeat for the other bolts, bringing them all down tightly in sequence.
Series 66 Torque
(R-PTFE SEATS)
Valve Size
Break Away
Torque
Cv
Valve Size
Break Away
Torque
Cv
Inch
DN
In/Lb
Nm G. P .M.
Inch
DN
In/Lb
Nm
G. P .M.
1/4" 8 69 8 8 1/4" - - -
-
3/8" 10 69 8
8
3/8" - - -
-
1/2" 15 69 8 15 1/2" 15 69 8
8
3/4" 20 92 10 34 3/4" 20 69 8
15
1" 25 138 16 56 1" 25 92 10
34
11/4" 32 207 23 85 11/4"
32 138 16
56
11/2" 40 288 33 125 11/2"
40 207 23
85
2" 50 415 47 250 2" 50 288 33 125
21/2" 65 553 62 320 21/2"
65 415 47 250
3" 80 898
101 580 3" 80 553 62 320
4" 100 1010
114 1020 4" 100 898 101 580
30% safety factor included.(full port)
30% safety factor included.(Reduced port)
