ASAHI AV VALVES Installation,Operation and Maintenance Manual
PDCPD Butterfly Valves 700-1200mm (28”-48”) 10
Fig.7
7) Tighten up the nuts according the tightening torque values listed
below
Tighten the nuts in a diagonal manner.
All penetrated bolts should be tightened first, and the inserted
metal parts should be tightened after.
Nom. Size mm (inch) Bolt tightening torque Nm (kgfcm)
700, 800 (28”,34”) 130 (1,300)
900, 1000 (36”, 40”) 170 (1,700)
1100 (44”) 200 (2,000)
1200 (48”) 220 (2,200)
8) Using the nylon sling, lift up around the flange sides of both short pipes to set in the required position.
Hook a wire through the eyebolt in order to stabilize the valve.
JIS Standard (10K)
Unit: mm (inch)
Nominal Size Bolt A Bolt B Quantity
mm (inch) D L S D1 L1 Bolt A Bolt B Nut &
Wa sh er
700 (28”) more than
350mm (13.78”) 20 48
800 (32”) more than
390mm (15.35”)
75mm
(2.95”)
900 (36”)
M30
more than
400mm (15.75”)
80mm
(3.15”)
M30 110mm
(4.33”)
1000 (40”) more than
470mm (18.50”)
85mm
(3.35”)
120mm
(4.72”)
1100 (44”) more than
520mm (20.47”)
24 56
1200 (48”)
M36
more than
570mm (22.44”)
100mm
(3.94”)
M36 180mm
(7.09”) 28
8
64
Bolt A Bolt B
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