Note: Ductile iron valve body,equipped with oil-resistant pressure gauge.
Product Overview:
This product is designed for high-rise and super high-rise buildings.It is an ideal solution for domestic water supply and fire protection systems in high-rise buildings where large flow rates and high sensitivity are required.With superior performance,it completely replaces intermediate water tanks,saving construction costs for such tanks and increasing usable floor space.
Installation Requirements:
Please refer to the installation requirements of the Y-series adjustable pressure reducing valve and the following requirements:
● It is recommended to install an air release valve in the piping system to ensure stable operation of the pressure reducing valve.
● Pay attention to the arrow direction marked on the valve body during installation.
● Adequate space should be reserved around the pressure reducing valve for easy maintenance.
● The inlet and outlet pressure should not be less than 0.2MPa.Below 0.2MPa,the pressure stabilizing performance deteriorates (outlet pressure deviation increases).
Troubleshooting and Corrective Actions:
| Fault Phenomenon | Fault Cause | Remedy |
|---|---|---|
| unstable pressure | Inlet and outlet direction reversed | Correct the direction |
| Main valve diaphragm damaged | Replace the main valve diaphragm | |
| Needle valve not opened | Open the needle valve | |
| Ball valve not opened | Open the ball valve | |
| Adjustable pressure reducing diaphragm damaged | Replace the adjustable pressure reducing valve diaphragm | |
| Foreign matter inside the valve body | Clean out | |
| Abnormal noise | Foreign matter inside the valve body | Remove impurities |
| Closing speed too | Adjust the needle |
Installation Diagram:
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