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Pressure Vessel

Call Us: +971 4 252 2966

Replace Vessel With Broken Bladder

8/12/2020

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Before you can install a new well pressure vessel, you will need to drain and dispose of your broken tank first. If the tank is full of water, first try connecting the boiler drain to a hose and draining the tank away from the home. If this does not work, it’s very likely the burst bladder is obscuring the water inlet. If this is the scenario you are presented with, you will have to drill a hole in the side of the tank to release the stored water. This can be a messy undertaking, however, a tank full of water can weigh well over 500 lbs. If you are unable to haul the tank out of your well house or garage, you will have to resort to puncturing the tank to drain it. 

Replacing the vessel is then a matter of finding another tank with pressure settings and drawdown capacity suited for your household’s water demand. If your vessel was destroyed because of short-cycling, ensure your new tank has a drawdown that matches the output of your pump. The tank’s drawdown is the amount of available water between the well pump turning on and off. To find the drawdown, calculate the minimum runtime of the pump (according to the manufacturer) and the flow rate of your pump in gallons per minute. For example, if your pump’s minimum runtime is one minute, and your pump can produce 10 gallons-per-minute, your drawdown is 10 gallons (1 minute runtime x 10 GPM = 15 gallon drawdown). This is the amount of water protecting your pump from turning off and on. 

If your well produces more than 1 gallon per minute, you should have a runtime of around a minute and a half. If your tank’s bladder has failed, reassess the drawdown capacity of your vessel and make sure you have a tank that can support your pressure settings and well pump. Keep in mind, the drawdown will change based on the pressure of the tank. A certain tank may give you 11 or 12 gallons of water at a 30/50 pressure setting, but only 9 if the pressure setting is changed to 40/60. You may be fine with a 30-gallon tank, however, in some cases you may need to upgrade to a 60 or 80-gallon pressure vessel.

For more info contact pressure vessel supplier in dubai or call us at +971 4 252 2966
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Pressure Vessel and Bladder

8/12/2020

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A pressure vessel is a bladder type pressure storage vessel designed to hold water under pressure. It extends the time the pump is on and off in each cycle due to the pressure switch not tripping so often. This extends pump life, makes less noise, quietens water hammering and cycling and gives a more consistent flow rate. The pressure tank can also be used to moderate the water flow to match your Hot Water Service or air conditioning unit.

What are the benefits of having a pressure vessel?                                                                                                    
The addition of the pressure vessel helps to quieten your pump and reduces pump cycling and hammering. When the tap is turned on the excess water which is held in accumulated storage in the pressure tank will be released to the outlet first. This means the pump does not have to turn on until the stored water has first been used. Thus extending pump life, battery life and giving you a smoother quieter operation. 

What if I don't have a pressure vessel?                                                                                                                      
Pumps will work without a pressure vessel, as there are automatic pumps fitted with a constant pressure controller so these pumps start and start on demand. We recommend having a pressure tank particularly when you have a shower or a toilet where the pump is rarely operating at 100%. Without a pressure tank or accumulator tank the strain will be on your pressure switch/controller, which may cause it to fail early at an inconvenient moment.

Can I add a pressure vessel to my current setup?
Pressure tanks can be fitted to new or existing pump systems.

Where do I position the pressure vessel?
Your pressure vessel needs to fitted on the outlet side of the pump before the water heater or outlets. The pressure tank usually sits on top of your pump or side by side with your pump.

Does the pressure tank come pre-charged?
Yes, all our pressure vessels offered come pre-charged from the factory. Your user manual / operators manual will show you the pre-charged rating

Does a pressure tank help with cycling and water hammering?
The addition of the pressure vessel helps reduces pump cycling and hammering. When the tap is turned on the excess water which is held in accumulated storage in the pressure tank will be released to the outlet first. This means the pump does not have to turn on until the stored water has first been used. Thus extending pump life, battery life and giving you a smoother quieter operation.

For more info contact pressure vessel supplier in dubai or call us at +971 4 252 2966
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Pressure Vessel Maintenance

8/12/2020

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Whether you have installed a new pressure tank or your old tank is losing air pressure, balancing it properly will prolong the pump life and give you a steady water pressure. All you need to balance your pressure tank is a tire gauge, an air compressor or a bike pump, and a lot of energy! If you need any assistance, Boulder/GNC Water Well is always here to help.Steps to Follow Before Balancing Your Pressure Tank
Before you attempt to balance your pressure tank, make sure that the tank bladder is not burst. Check this by following the below-given instructions:
  • Shut down the power to your pumping system
  • Turn on the faucet until the water stops. This ensures that there’s no water left in the tank
  • Most tanks can be wiggled back and forth. Shaking it too hard can cause a break in your plumbing. As you shake the tank lightly, if it feels heavier than it should or you hear water sloshing inside it, please give us a call. Our certified technician will come to your home to evaluate the condition of your tank and repair it, if necessary
  • You’re now ready to balance your tank
Instructions to Balance Your Pressure Tank
  • Run water from a faucet and note the pressure at which the pump turns on and off
  • Turn off the power to the pump. Turn the faucet on until the pressure gauge reads 0 and the water stops
  • Check the air pressure in the tank with a tire gauge at the air valve located on the tank
  • Adjust the air pressure in the tank with your compressor or bike pump to 2 psi less than the pump turn-on point. If you have a low-pressure cutoff switch, you may want to set it to 5 psi less than the cut-on point
  • Turn the power to your pumping system back on
  • Run water and watch the pressure gauge to see if the on / off cycle is smooth
  • If the needle has any fast jumps, repeat the above steps
If the problem persists after repeating the above steps, please don’t hesitate to contact us. Have our technician come over to your home and assess the condition of your tank and repair it for you, if necessary. We provide 24/7 emergency services for your convenience!
Raise the Pressure of Your PumpIf your pump is unable to produce more pressure, you can adjust the pressure switch and rebalance the pressure tank to achieve greater pressure. To change the pressure setting, you’ll need a 5/16” hollow-stemmed nut driver, a voltmeter, a tire gauge, and an air compressor or a bike pump.

Both the pressure settings (30/50, 40/60 and so on) and the 20 psi factory preset range (on at 40, off at 60) can be altered. However, we recommend that you don’t change the preset range or raise the pressure over 65 psi on most switches.

The following instructions can be used to raise the pressure of a Square D Pumptrol Model FSG-2, an extremely common switch.  
  • Run the water and write down the pump-on and pump-off pressure readings
  • Turn off the power to the pump and lock it
  • Run the water until the pressure gauge reads 0 and the flow stops
  • Check the air pressure in the pressure tank with the tire gauge at the Schrader valve located at the top of the tank
  • Raise the air pressure in the tank to 2 psi less than the pressure at which you wish the pump to start pumping (i.e., for a 40 psi switch-on pressure, the tank should have 38 psi)
  • Remove the cover from the pressure switch
  • With your voltmeter, check for power at the pressure switch (L1- L2, T1-T2) to verify that the power is off
  • With your 5/16” hollow-stemmed nut driver, tighten (clockwise) the nut on the taller spring down. We use 1/4 turn for 1 psi as a rule of thumb; however, this varies greatly from switch to switch. Try not to raise the pressure more than 5 psi higher than your target pressure. Otherwise, damage to the bladder of the tank can occur  
  • Replace the cover to the switch and turn on the power
  • Watch the pressure gauge as the pump fills the pressure tank. If the pressure gets higher than 5 psi above the desired off point (20 psi above the desired turn-on point) shut off the power to the pump and loosen the tall spring until the contacts on the switch open. Then, replace the cover on the pressure switch and turn the power back on
  • Run the water again and write down when the pump turns on and off
For more info contact Pressure vessel supplier or call us at +971 4 252 2966
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How to change the pressure setting

8/12/2020

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Pressure switch settings are adjustable, and if you are unsatisfied with the pressure settings provided to you by the manufacturer, you can adjust them to better suit your household needs. 
    1. Drain the tank of water. Before making any changes to the pressure settings, you’ll want to ensure the well tank itself has no water within it. This will make recalibrating the pressure of the well tank much easier.    
    2. Find your pressure switch. The pressure switch is a rectangular black box, usually attached to the tank manifold found at the base of your tank. It is usually found adjacent to the circular pressure gauge, the device that indicates the pressure of the water in the waterline.
    3. Remove the pressure switch’s cover. The pressure switch’s cover is usually black or dark gray and is attached to the body of the switch by a nut. Using an adjustable wrench, loosen the nut and remove the cover from the switch. Many pressure switch manufacturers will include an internal diagram that shows demonstrates standard pressure switch settings, like 30/50, 40/60, or 20/40.
    4. Examine the pressure switch. Pressure switches will have nuts internally that can be rotated to modify the cut-on and cut-off pressure. Most commonly, pressure switches will use a single nut to raise both the cut-on and cut-off pressure simultaneously. This maintains the necessary 20 psi differential between the two pressure settings. The set relationship between the cut-on and cut-off pressure is crucial for the performance of your pump and well. 
    5. Adjust the pressure settings with a wrench. Using a wrench, turn the nut clockwise to raise the pressure and counter-clockwise to reduce the pressure. For every complete turn of the nut, the pressure increases 2 1/2  psi. So, to raise the psi by 10, you will need to turn the nut three and a half times. If your pressure switch uses separate nuts to adjust the cut-on and cut-off pressures, consult the switch’s manual before attempting to adjust the pressures. Usually, the 1/2 nut controls the cut-on pressure and the 7/16 nut controls the cut-off pressure. You want to make sure that you adjust the two pressures to maintain the 20 psi differential.  
    6. Reset the well tank’s pressure. Now that you have changed the pressure switch settings, you will need to change the pressure of the tank itself to support the pressure settings. Since the pressure of the tank needs to be 2 psi below the cut-on pressure, use an air compressor to raise the pressure. Periodically check the pressure with a tire pressure gauge, and add or release pressure until you’ve reached the desired threshold.
For more info contact pressure vessel supplier or call us at +971 4 252 2966
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How to check the pressure in pressure vessel

8/12/2020

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  1. Cut the power to your well tank. Make sure that you shut off your well’s submersible pump to prevent it from starting. Ensure any other electrical connections to the well tank or pump are also turned off. If you have any water filtration equipment between the pump and the pressure tank, use the bypass valve to divert water away from the tank.
  2. Drain the well tank. It’s very important to empty the well tank before checking the tank’s pressure. If you try to read the pressure of a tank full of water, you will only read the pressure of the water inside the tank, not the pressure. This is inaccurate. To drain the tank, locate the boiler drain on the tank’s manifold (also called the tank package). Connect a garden hose to the boiler drain, turn the drain on, and drain the tank outside your home or garage. If your well pressure tank does not have a manifold, open a faucet in your home and continue to run the water until the tank is emptied and the pressure switch reads 0.
  3. Locate a pressure gauge. To test the tank’s internal pressure, you will need a pressure gauge. Pressure gauges (also known as tire gauges) read the pressure of the tank by using a piston to propel a calibrated spring when exposed to pressurized air. 
  4. Use the gauge to check the tank’s pressure. All well pressure tanks have a schrader valve. Schrader valves, which can also be found on automobile and bicycle tires, are used to both check pressure and add air pressure. On standard metal well tanks, the schrader valve will be located at the top of the tank. On composite tanks, the valve can be found toward the base of the tank. Unscrew the cap covering the valve, and press the tire gauge down on the valve. The air will trigger the piston inside the gauge and measure the air pressure within the tank. 
  5. Adjust the pressure with an air compressor if necessary. The ideal pressure for your well tank depends on the pressure switch setting. As stated before, the pressure of your tank should be 2 psi below the pressure switch’s low cut-in point. On a 30/50 switch, this would be 28. If your pressure is below this, carefully use an air compressor to amplify the pressure until it has reached the appropriate pressure setting. Be careful not to add too much pressure: an overpressurized tank will hold less water and can empty out entirely without signaling the well pump to kick on. 
For more info contact pressure vessel supplier in uae or call us at +971 4 252 2966
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How does a pressure tank work

8/12/2020

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Pressure tanks use compressed air to create water pressure. Since wells do not have positive pressure on their own, well tanks a water storage system that also creates pressurized water using air chambers or rubber diaphragms. 
Steel well tanks have an air chamber that is separated from the water by a rubber diaphragm. As water flows into the tank, the compressed air bears down on the diaphragm, increasing the pressure within the tank. Composite well tanks have a balloon-shaped air bladder inside the tank which functions in a similar manner. Every well tank is equipped with a pressure switch that actuates the cycling of the pump. When the pressure in the tank reaches the pre-determined cut-off pressure setting, the switch will alert the pump to cease delivering water to the pressure tank.

When you open a kitchen faucet to fill yourself a glass of water or step into a relaxing shower, pressurized water is delivered to the tap or showerhead on demand. The air within the tank propels the water through your home, so you don’t have to deal with poor water flow and low pressure. However, as more and more water exits the tank, the pressure within the tank will start to decrease. When the internal pressure reaches the pre-determined low point (also known as the cut-on point), the pressure gauge senses the drop, alerting the pressure switch that the tank is in need of more water. The switch then kicks the pump back on and recommences water delivery to the tank. This will continue until the tank once again reaches the cut-off point. 

Pressure tanks are an integral part of any well system. They ensure that your home always has adequate access to water. However, more importantly, they protect your well pump from short-cycling. Without the presence of a well tank, the pump would turn on and off every time water was demanded. Submersible well pumps are water-cooled. However, if they’re turning on and off frequently, they are generating a lot of electrical current. This will cause heat to build-up within the motor. This additional generation of heat is detrimental to the electric motor. This will ultimately shorten the life cycle of the motor, incurring a premature replacement. Well pumps are costly and complicated to replace, so preventative maintenance on the well pressure tank itself is crucial to preserving your well pump. So, tanks are not only important for maintaining household pressure, they are the buffer between your pump and rapid cycling. 

For more info contact Pressure Vessel Supplier in dubai or call us at +971 4 252 2966

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Al Qusais, Dubai, UAE
P.O.Box 12940
Mob: +971 56 329 5097
Tel: +971 4 252 2966
Fax: +971 4 387 3401
Email: sales@dxbsolutions.ae
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