Pneumatic diaphragm pump installation instruction

Mini Diaphragm pump installation instructions

First, micro diaphragm pump to install before to understand the matter:

1, the suction pipe and the discharge pipe diameter configuration:

(1) The suction pipe diameter of not less than the pump inlet port diameter, such as the delivery of high-viscosity fluid, the suction pipe diameter is preferably greater than the pump inlet diameter. Suction piping on the inlet side must be durable and free of wrinkles to create a high vacuum condition.

(2) The diameter of the outlet pipe should be at least equal to the outlet diameter or slightly larger to reduce the friction loss. All piping and fittings must be leak-tight or pump self-priming will be reduced.

2, Small diaphragm pump installation location, height, piping layout, gas supply and other matters:

Pneumatic diaphragm pump installation: If you ignore the installation details, a long period of careful planning, research and selection will still result in poor pumping and affect the life of the pump.

(1) Location: Noise, safety and other logic often require that the equipment be installed. Parallel installation with conflicting requirements may result in blockage in the area of use, affecting the installation of other pumps.

(2) Use: First, the location of the pump must be easy to use, so that maintenance personnel will facilitate routine inspection and commissioning.

(3) Air supply: Each pump should have a vent pipe, and the vent pipe should be able to provide enough air to achieve the desired pump flow. Air pressure according to different pumping needs, but not more than 7BAR. (125PSI)

(4) Installation height: Please take full account of pump self-absorption capacity to avoid self-absorption to reduce the problem.

(5) Piping: The pump position can not be finalized until after considering each possible location of the piping problem.

3, the use of other installation instructions:

The best installation should be selected at the junction of a shortest and most straight import and export pipeline. Should try to avoid the extra elbow and pipe fittings facilities. The pump body should be able to support all piping independently. Also, the piping should be ordered to avoid stress on the pump piping.

Active hoses can be installed to eliminate stress from the pump's natural movement back and forth. To attach the pump body to a fixed base, placing a cushion between the pump body and the base will help reduce body vibration.

If a pneumatic diaphragm pump is to be used to pump delicate media, verify that all pipe connections must be hermetically sealed and that the self-priming lift be within the pump's capacity.

To stop the pump from operating in an emergency, simply turn off the "cut-off" valve mounted on the trachea. A suitable functional valve will stop the pump air supply, thus preventing the output. The "deadline" valve should be installed in the area not far from the pump in case of emergencies.

Second, pneumatic diaphragm pump specific installation process:

1, pneumatic diaphragm pump installation and start:

Place the electric diaphragm pump as close as possible to the product, minimize the suction line, reduce the number of configuration parts, and do not reduce the pipe size. To extend the life of the diaphragm, keep the pump as close as possible to the fluid being pumped and require a slow pressure adjustment mechanism to extend the diaphragm life at inlet pressures in excess of 10 feet (3 meters). If hard piping is installed, use a short hose between the pump and the piping. Hoses can slow pipe vibrations and distortions, and a surge tank is recommended to further reduce the pulses in the fluid.

2, to the diaphragm pump gas supply:

Metal diaphragm pump supply pressure shall not exceed 125PSI (8.6BAR), plastic pump supply pressure shall not exceed 100PSI (6.9BAR). Connect the air inlet of the pump to the air supply with enough capacity and pressure to meet the design requirements. If the air supply line is a hard pipe, connect a short hose between the pump and the pipe to reduce distortion. In addition to the air inlet cap, the air intake pipe, the pressure regulator filter weight must also be supported by some means. Failure to support the pipe may damage the pump. Pressure regulators must be installed to ensure that the supply pressure does not exceed the specified range.

3, check the small membrane pump before operation:

Before working on the diaphragm pump, inspect all fixings to prevent slackening. Tighten the loose parts to avoid leakage. Secure the diaphragm pump with the method described in the attached card.

4, diaphragm pump intake and start:

When activated, the air valve opens about 1/2 to 3/4 turns. After the pump is started, open the air valve to increase air flow to achieve the required flow rate.

5, pneumatic diaphragm pump exhaust:

If the diaphragm is broken, the drawn liquid or gas will enter the air inlet of the pump and be vented to the atmosphere. When drawing hazardous or toxic substances, it may be necessary to drain the pipe to a suitable place for safe handling.

If the pump sink into the liquid work, the gas to be discharged from the liquid level, the exhaust pipe can not be less than 1 "(2.45CM) .Decreasing the exhaust pipe size will limit the gas flow, reducing pump usage .When the material level is high In the pump, the outlet should be higher in order to prevent siphon phenomenon.

At some temperature and humidity, it is possible for the evacuated gas to freeze, and using gas drying can eliminate most of these problems.

6, pneumatic diaphragm pump after use:

If used to transport easily curable materials, to prevent damage to the pump, thoroughly clean the pump after each use. (After use, the product left in the pump has dried or stuck to the pump, causing problems with the diaphragm and valve before the next start-up). In freezing temperatures, the pump must be drained in any case after use.

Third, on the valve lubrication matters needing attention:

Diaphragm pump air distribution valve and pilot valve are in accordance with the design of non-lubricating oil, which is the ideal working condition. In some cases, such as personal preference or air quality is very poor, but also the supply of compressed air lubrication, compressed air supply system is properly lubricated, the pump air system industry can work with appropriate lubrication requires the use of an air Pipeline lubricator, set to pump the air every 20SCFM deliver a drop of no detergent oil, you can check the pump performance curve open quantity.

Pneumatic diaphragm pump feed pipe generally do not install the valve, the direct election Diaphragm and diaphragm pump can be matched, pay attention to the feed pipe to have a certain intensity, otherwise tube will be deflated work, affecting the feed. Generally add a valve in the discharge tube to see the scene conditions, is installed manual valve or automatic valve. Pipelines, valves should pay attention to the choice of material properties (such as acid, alkaline, corrosive, etc.) to match.

Gas generally installed triple (pressure regulating, drainage, lubrication), the general import pump without lubricating oil. Ball valve, flow control valve (optional).

If the demanding occasions also require the installation of regulators, pressure gauges, leak detectors and so on.

Such as the installation of solenoid valves, metering controllers, but also the diaphragm pump into a metering pump for remote control feeding.

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