Pneumatic double diaphragm pump safety precautions

Pneumatic double diaphragm pump function is convenient, open and stop simply open and close the gas valve, even if due to accident and no medium for a long time or sudden stop, the pump will not be damaged, overload pump will automatically stop, with self-protection performance, when the load back to normal, and have automatic start operation.

Pneumatic double diaphragm pump has simple structure, less wearing parts, the pump is simple in structure, convenient in installation, maintenance, pump will not come into contact with the medium of high-pressure air, link and other moving parts, unlike other types of pumps for rotor, piston, gear, blade wear parts and make the performance decline gradually, such as the pump without oil lubrication, even if the idling, is no impact on pump, it is a great characteristic the pump.

Pneumatic double diaphragm pump safety precautions:

1. Be sure to shut off the air supply and disconnect the connection near the air supply before changing the liner sleeve, cleaning the extrusion valve or performing any other operation on the pipe valve.
2. Make sure that body parts, tools or other special bodies are in contact with the squeeze valve when it is in operation.
3. Understand and follow the instructions in the safety data sheet before the valve comes into contact with the medium/product.
4. Do not touch the pinch valve when the conveying temperature of the medium is high (there is a risk of burns).
5. Disassembly of the pinch valve is allowed only when the device is turned off and under no pressure.
6. Pressure limiter and safety valve shall be installed in the equipment to prevent overloading of large allowable working pressure/control pressure of pneumatic double diaphragm pump.
7. Unstable gas, cannot be used as working medium.
8. Please note that depending on the application environment of the pinch valve, static electricity may be generated.
9. Choose extrusion material, in addition to the service life of the valve itself, but also to consider the driving parts (air control, solenoid valve, etc.), once the lining damage, the medium may enter the control line.

In order to ensure the quick opening of the pneumatic tube clamp valve, we recommend to install the quick belt exhaust valve directly at the valve body’s air port joint.

In the pneumatic double diaphragm pump configuration design, should consider the installation of pressure switch between the pinch valve and the reversing valve, adjusting the opening pressure and closing pressure of the liner sleeve.
The pressure switch regulator can monitor all kinds of faults (cracks, holes) of the liner in time, and can replace the liner in time.
If pneumatic double diaphragm pump is used in vacuum system (negative pressure is more than 100 mbar), pressure balance must be carried out between control gas side and medium flow.

The method is to connect the vent of the reversing valve with the medium flow through the – vacuum pump.

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