Steps and Precautions for Installing a Diaphragm Accumulator

Choosing the Appropriate Location:

Ensure the installation location meets the equipment requirements, leaving enough space for inspection and maintenance. Avoid direct sunlight or other heat sources to prevent thermal expansion, which could increase system pressure.

Preparing the Installation Bracket or Base:

Choose a suitable bracket or base according to the size and weight of the accumulator, ensuring it can securely support the accumulator. Ideally, diaphragm accumulators should be installed vertically with the oil port facing down.

Connecting the Piping:

A shut-off valve should be installed between the accumulator and the system to facilitate charging, adjustment, inspection, maintenance, or long-term shutdown. Ensure the piping meets design requirements to prevent oil from flowing back into the accumulator and avoid bending or twisting of the pipes to ensure normal fluid transmission.

Connecting the Inlet and Outlet:

Correctly connect the inlet and outlet according to the markings on the accumulator. Typically, a valve is installed at the inlet to control the water flow into the accumulator.

Adjusting the Air Pressure:

Charge the accumulator with an inert gas (such as nitrogen); never use oxygen, hydrogen, compressed air, or other flammable gases. The diaphragm accumulator usually requires air pressure adjustment. Use a pressure gauge to check and adjust the pre-charge gas pressure to ensure the accumulator operates within the normal working pressure range.

Checking Installation Quality:

After installation, carefully check all connection points and fasteners to ensure there are no leaks or loose connections.

System Trial Run:

Perform a system trial run before starting the main system to check for normal operation and the absence of abnormal leaks in the accumulator.

Regular Inspection and Maintenance:

Regularly check the working condition of the accumulator, particularly its gas tightness. If any abnormalities are found, they should be promptly addressed or the accumulator should be replaced.

Installing a diaphragm accumulator involves several steps, including piping connections, pressure adjustment, and securing the installation. For safety and performance considerations, it is recommended to strictly follow the manufacturer’s installation instructions and recommendations during the installation process. If there is any uncertainty or professional assistance is needed, seek the guidance of experienced technical support or engineers.