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EPDT-209
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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-24/24B
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. Features ············································································· 1
2. Specifications ································································ 1
3. Dimensions and Construction
3.1 Dimensions and Weight ···················································· 2
3.2 Construction ·································································· 3
4. Operation ··········································································· 3
5. Nominal Size Selection
5.1 Nominal Size Selection Chart ············································ 4
5.2 Flow Rate Characteristics Chart ········································ 5
5.3 Pressure Characteristics Chart ·········································· 5
6. Installation
6.1 Piping Example
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6.2 Warning and precaution on installation ··························· 6
7. Operating Procedure
7.1 Warning and precaution on operation ································· 7
7.2 Adjustment Procedure ···················································· 7
8. Maintenance Procedure ························································· 7
8.1 Warning and precaution on maintenance and inspection ···· 8
8.2 Troubleshooting ····························································· 8
9. Exploded Drawing ······························································· 9
After Sales Service
