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EPDT-175d
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This symbol indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
This symbol indicates a hazardous situation that, if not avoided, may result
in minor or moderate injury. (“Caution” may also be used to indicate other
unsafe practices or risks of property damage.)
Model GD-24GS
Pressure Reducing Valve
Installation & Operation Manual
Please read this manual thoroughly before using the pressure reducing valve, so that
you may do so correctly and safely.
Please carefully store this manual in a handy place.
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The following safety symbols are used in this manual.
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Warning
Caution
Contents
1. Specifications ································································ 1
2. Dimensions and Construction
2.1 Dimensions and Weight ················································· 2~3
2.2 Construction ·································································· 4
3. Operation ··········································································· 4
4. Nominal Size Selection
4.1 Nominal Size Selection Chart ············································ 5
4.2 Flow Rate Characteristics Chart ········································ 6
4.3 Pressure Characteristics Chart ·········································· 6
5. Installation
5.1 Piping Example ······························································ 7
5.2 Warning and precaution on installation ························ 7~8
6. Operating Procedure
6.1 Warning and precaution on operation ································· 8
6.2 Adjustment Procedure ···················································· 8
7. Maintenance Procedure ························································· 9
7.1 Warning and precaution on maintenance and inspection ···· 9
7.2 Troubleshooting ···························································· 10
8. Exploded Drawing ······························································ 10
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