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17
English
Tightening torque
The sizes of the shutoff valves on each model and the tightening
torque for each size are listed in the table below.
<Size of Shutoff Valve>
<Tightening torque>
(Refer to figure 33)
1.
Service port
2.
Cap
3.
Hex holes
4.
Shaft (valve body)
5.
Seal section
To open
1.
Remove the cap and turn the shaft counterclockwise with the
hexagon wrench (JISB4648).
2.
Turn it until the shaft stops.
3.
Make sure to tighten the cap securely.
(For the tightening torque, refer to the item <Tightening Torque>.)
To close
1.
Remove the cap and turn the shaft clockwise with the hexagon
wrench (JISB4648).
2.
Securely tighten the valve until the shaft contacts the main body
seal.
3.
Make sure to tighten the cap securely.
(For the tightening torque, refer to the item <Tightening Torque>.)
8HP type
10HP type 12HP type 14HP type 16HP type
Liquid pipe
shutoff valve
φ
9.5
φ
12.7
The 12HP type corre-
sponds to the 12.7-diame-
ter onsite piping using the
accessory pipe.
Gas shutoff
valve
φ
19.1
The 8 · 10HP type corresponds to the 22.2-diam-
eter onsite piping using the accessory pipe.
The 12-16 HP type corresponds to the 28.6-
diameter onsite piping using the accessory pipe.
Equaliger
pipe shutoff
valve
φ
19.1
φ
19.1
Shutoff
valve size
Tightening torque N·m (Turn clockwise to close)
Shaft (valve body)
Cap (valve lid) Service port
φ
9.5
5.4 - 6.6
Hexagonal
wrench
4 mm
13.5 - 16.5
11.5 - 13.9
φ
12.7
8.1 - 9.9
18.0 - 22.0
φ
19.1
27.0 - 33.0
Hexagonal
wrench
8 mm
22.5 - 27.5
01_EN_3P201178-10P.fm Page 17 Wednesday, September 2, 2009 11:10 AM