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Pressure tank Instruction
a pressure balance tank for sanitary installations to prevent the over-operation of the water pump
Reducing the running time of pumps in booster systems, preventing the water hammer in installations and storing ready-for-use pressurized water are among the main tasks of a booster pressure tank.
MAINTENANCE
1. Maintenance should be realized by qualified personnel and in accordance with the instructions in this manual.
2. Protect your vessel against temperatures less than zero.
3. Your vessel should be inspected for its pre-set gas pressure at least two times a year preferably once in every 3 months. In cases where there is a necessity gas should be inserted (only air or nitrogen).
WARNING: When checking or adjusting the pre-set gas pressure make sure that the vessel does not contain any water. Otherwise the measurement
would result incorrect.
WARNING: The air pressure quantity inside the vessel can be read from the
pressure gauge.
WARNING: For models without pressure gauge the tank pressure can be
measured by a pressure gauge that measures from the valve.
| DEFECTS | REASONS | SUGGESTIONS |
| There is no air inside the vessel (pressure gauge shows less pressure than the supposed pre-set gas pressure and pressure is dropping despite air insert) | Diaphragm (membrane) is burst Air leakage in the flange area – flange cover bolts might be too loose Diaphragm(membrane) hanger has a air leakage -hanger bolt might be loose Air valve leaks air- valve bolt might be too loose Valve might be damaged Air leakage in welding area-welding area might have punctures, missing welding or ruptures | Change the diaphragm and check for impermeability Tighten the flange bolts and check for impermeability Tighten the hanger bolts and check for impermeability Tighten the valve bolts and check for impermeability Change the valve and check for impermeability Please call an authorized technical service immediately before performing any procedure |
| Diaphragm (membrane) bursts too often | Installation pressure is too high Tank volume too small Tank pre-set gas pressure is insufficient | Tank might be subjected to installation pressure. Please check your installation. Change the tank with a correct sized vessel Set the pre-set gas pressure |
| Pressure gauge is defect | Might be damaged during transport | Replace the pressure gauge with a suitable dimension and capacity. |
| Tank does not fill with water | The pre-set gas pressure inside the vessel is too high | Reduce the pre-set gas pressure in accordance with your installation |
| Water comes from the blind closing plugs | Sealing is not enough (installer responsibility ) | After installation to prevent water leakage, sealing teflon tape etc. should be used and should be tightened with 45-50 Nm. |
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