Typically, the tank is only required to be supported when installed in the horizontal position. Most smaller tanks are designed to be supported by the plumbing, when installed in the vertical orientation. The most common recommendation seems to be, to install the tank vertically below the plumbing.

Does expansion tank orientation matter?

Expansion tanks can be installed in any direction. Whether oriented uprightly, horizontally, or even upside down, the expansion tank will function properly without any adverse effects. When putting an expansion in an abnormal position (specifically sideways or horizontally), make sure to support the tank.

Does an expansion tank need to be upside down?





The tank is divided with in. One part is pressurized air and the other is water. When mounted if the in coming part is facing down that is the best way to install. When water enters there may be sediment.

Which way up should an expansion vessel be fitted?

The orientation of the expansion vessels Water Connection should be downwards to avoid risk of sediment ingress or other debris from the system. Some provision for the prevention of air ingress into the vessel must also be made as this will degrade the vessel very quickly.

Can thermal expansion tank be installed sideways?

Can a water heater thermal expansion tank be installed sideways/horizontally? Most expansion tanks are designed to be installed vertically (stem up or stem down). You can install one sideways, but it will shorten the lifespan unless it is designed and specified by the manufacturer for horizontal installation.

Should expansion tank be supported?

Horizontally-hung tanks will need additional support to reduce the stress on the copper piping. The expansion tank should be inspected for proper location and support, corrosion and leakage.

Can a well pressure tank be installed on its side?





Answer; Yes it is a factor, the tanks are designed to sit air stem up or air stem down. Sitting a vertical tank horizontally puts more pressure on the lower parts of the bladder and can cause early failure. If it is full of water at the air stem, then you did rupture the bladder.

Can a geyser be installed upside down?

Yes, all the geysers in the Builders Pride can be installed either horizontally or vertically.

Can you install a water heater upside down?

Do you? This is absolutely not possible… The unit must be positioned with the pipes pointing down.

Can you install expansion tank anywhere?

Your expansion tank does not need to be located close to the water heater. It is most common to see installation using a “T” at the cold inlet on the water heater. However, from a functional standpoint, the tanks can really be installed anywhere along the cold water line before it enters the water heater.

What side should expansion tank be on?



Although expansion tanks can be installed on the hot side, we strongly recommend they be installed on the cold line, downstream of the shutoff valve.

How do you plumb an expansion tank?

Instructions (New Water Heater Installation)

  1. Attach a Dielectric Union. After the water heater is correctly positioned, attach a dielectric union to the cold water entry port. …
  2. Attach Copper Adapter. …
  3. Tighten Adapter. …
  4. Attach Tee Fitting. …
  5. Attach Expansion Tank Pipe. …
  6. Attach the Expansion Tank. …
  7. Complete the Installation.