YOKOGAWA UV700G, User Manual

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<3. Installation>
3-4
IM 12K01B02-01E
3.3 Piping configuration
• Insulate the unit to protect against frozen pipes in the cold weather.
• Drain piping should be as short as possible in order not to create the backpressure. Make
the drain cock discharge the air in order to prevent water from being blocked (rising pipes
cannot be used).
• Diameters of piping sockets
Piping description Diameter of piping sockets
1 Sample inlet Rp 1/2 female
2 Bypass outlet Rc 1/2 female
3 Overflow outlet (1) Elbow fitting, 13 dia. (nominal)
4 Overflow outlet (2) Elbow fitting, 20 dia. (nominal)
5 Drain outlet Rc 1/2 female
6 Discharge Tube coupling, 50 dia. (nominal)
Overflow tank
Overflow line (2)
Overflow line (1)
Sample line
Bypass line
Sampling pump
Drain line
Discharge line
Measuring cell
Air release
4
3
1
2
5
6
V-1
V-3
V-2
V-4
• Refer to the table below for the diameter for piping
Piping description Diameter of piping (when hard PVC piping is used)
1 Sample lines Nominal diameter is 13 or larger
2 Bypass line Nominal diameter is 13 or larger
3 Overflow line (1) Nominal diameter is 13 or larger
4 Overflow line (2) Nominal diameter is 20 or larger
5 Drain line Nominal diameter is 13 or larger
6 Discharge line Nominal diameter is 50 or larger