Fujitsu AUYG18LVLB Design & Technical Manual page 209

¢ Handling precautions for valves
• Mounted part of blank cap is sealed for protection.
• Fasten blank cap tightly after opening valves.
Blank cap (mm [in])
6.35 (1/4)
9.52 (3/8)
12.70 (1/2)
15.88 (5/8)
19.05 (3/4)
Operating the valves:
• Use a hexagon wrench (size 4 mm).
• Opening:
1. Insert the hexagon wrench into the valve shaft, and turn it counterclockwise.
2. Stop turning when the valve shaft can no longer be turned. (Open position)
• Closing:
1. Insert the hexagon wrench into valve shaft, and turn it clockwise.
2. Stop turning when the valve shaft can no longer be turned. (Closed position)
Opening direction
3-3. Pipe connection
Opening direction
Liquid pipe
- 201 -
Tightening torque (N•m [kgf•cm])
20 to 25 (200 to 250)
20 to 25 (200 to 250)
28 to 32 (280 to 320)
30 to 35 (300 to 350)
35 to 40 (350 to 400)
Hexagon wrench
Seal (blank cap installation portion)
Gas pipe
3. Pipe installation