■EPDT-014f■
Model GP-2000
PRESSURE REDUCING VALVE
Installation & Operation Manual
Please read this bulletin thoroughly before using the pressure reducing valve, so that you may
do so correctly and safely. Please carefully store this bulletin 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 Weights ················································ 2
4. Operation ···································································· 3
5. Nominal Size Selection Method
5.1 Specifications selection chart ······································ 7
5.2 Safety valve setting pressure chart ······························· 7
5.3 Characteristics chart ················································· 7
5.4 Nominal size selection chart ······································· 8
5.5 Nominal size selection calculation formula ····················· 9
6. Installation
6.1 Example of piping ····················································· 9
6.2 Precautions during installation ···································· 10
6.3 Installing accessories ··············································· 11
6.4 Sensing pipe connection method ································ 11
7. Operating Procedure
7.1 Precautions during operation ····································· 11
7.2 Adjustment procedures ············································· 12
8. Maintenance Procedure
8.1 Troubleshooting ······················································ 12
8.2 Precautions during maintenance and inspection ············· 13
8.3 Disassembly ··························································· 14
8.4 Precautions during reassembly ··································· 14
8.5 Exploded drawing ···················································· 15
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After Sale Service
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.)