Manufacturer produces BQG250/0.4 pneumatic diaphragm pump - multi-industry diaphragm pump

The manufacturer produces pneumatic diaphragm pumps for many industries. . . . . . . The disc does not exist. . . 2. Main features
The pneumatic diaphragm pump uses air flow to push the valve core to reciprocate, so that the pressure air enters the left and right air alternately cavity, so that it can push the diaphragm to reciprocate and generate a pressure difference in the working cavity to achieve the purpose of water absorption and drainage. It is small in size, light in weight, and does not require a foundation. It can be used as a mobile pump without lubrication. The main valve has no special requirements for the air source and can be started by self-priming.
3. Working Principle
The mining pneumatic diaphragm pump uses the pressure difference in the air chamber to alternately generate suction liquid pressure and positive liquid pressure in the liquid chamber. Controlling the valve switch can ensure the forward flow of the liquid. After ventilation, the pump starts running and works continuously to ensure that the required pressure remains constant. The pump will increase and maintain the delivery pipe pressure, and when the maximum delivery pipe pressure is reached (or the distribution valve is closed), it will stop working and when needed time, resume pumping.
4. Technical Parameters
Model
Rated
Flow
/
Discharge
Pressure
Rated
Wind pressure
Maximum
Air consumption
Passed particles
Maximum particle
Diameter
Length, width and height
Weight
Import and export
Pipe diameter
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Online maintenance
The diaphragm pump should make no abnormal noise during operation, and there should be no running, popping, dripping or leaking in any part. The pressure gauge and control valve should work reliably. Each performance index reaches the rated capacity of the manual or can meet the production requirements. But failures can also occur due to normal wear and tear or the aging of component materials.
Diaphragm pump pressure is insufficient or increased, causes and treatment methods
, pneumatic diaphragm pump pressure regulating valve is improperly adjusted, adjust the pressure valve to the required pressure
, pressure regulating valve failure, maintenance, pressure adjustment, wide pressure Repair or replace the pressure gauge
Causes and treatment methods of diaphragm pump pressure drop failure
, Repair the oil valve for insufficient oil supply
Insufficient feed or leakage of the feed valve, repair the feed Condition and feed valve
, plunger seal oil leakage, repair the sealing part
, the oil level in the oil tank is too low and add new oil
, pump body leakage or diaphragm damage, check and replace the sealing gasket or diaphragm.
Causes and treatment methods of insufficient flow of diaphragm pump
, Inlet and discharge valve leakage, maintenance or replacement of the feed valve
, Diaphragm damaged and replaced diaphragm
, Speed too slow, Repair the control device if the adjustment fails and adjust the speed.
Causes and treatment methods for oil leakage in diaphragm pumps. If the sealing gasket and sealing ring are damaged or too loose, adjust or replace the sealing gasket and sealing ring.
The pneumatic diaphragm pump operates, but the flow rate is small or no liquid flows out at all
. Check the cavitation phenomenon of the pneumatic diaphragm pump, reduce the speed of the pump to allow liquid to enter the liquid chamber.
.Check whether the valve ball is stuck. If the operating fluid is incompatible with the pump's elastomer, the elastomer will swell. Please replace the elastomer with an appropriate material.
.Check whether the joint at the pump inlet is completely locked and leak-proof, especially the clamp near the valve ball at the inlet end needs to be locked.
The air valve of the pneumatic diaphragm pump is frozen. Check whether the moisture content of the compressed air is too high. Install air drying equipment.
There are bubbles at the outlet of the pneumatic diaphragm pump. Check whether the diaphragm is ruptured and whether the clamp is locked. , especially the inlet pipe clamp.
When the product flows out of the air discharge port, check whether the diaphragm is broken, and check whether the diaphragm and the inner and outer clamping plates are clamped on the shaft
The valve makes a rattling sound to increase the outlet or inlet lift.
Pneumatic Diaphragm Pump Disassembly and Reassembly Guide
Warning Before repairing the pump, the air source piping must be removed from the pump and the air pressure in the pump must be discharged. Remove all lines connecting the inlet and outlet of the pump and drain the fluid from the pump to a suitable container. Wear protective hats, glasses, and gloves
The pump does not move or operates very slowly
. Check the filter or air filter device at the air inlet end for any impurities.
.Check whether the air valve is stuck and clean the air valve with cleaning fluid.
.Check the air valve for wear and replace it with new parts if necessary.
.Check the condition of the sealing parts of the center body. If it is severely worn, the sealing effect cannot be achieved, and the air will be discharged from the air outlet end. Due to its special construction, please only use circles.
.Check whether the piston movement in the air valve is normal.
.Check the type of lubricating oil. If you add lubricant that is higher than the recommended oil viscosity, the piston may become stuck or not operate properly. It is recommended to use light and anti-freeze lubricant.
) Pneumatic diaphragm pumps are powered by compressed air. Proper lubrication can make the operation of the pump more stable and extend the service life of the pump. ) Make sure the compressed air is clean. Unclean gas can easily wear the air valve. It is recommended to install a pneumatic triplet! ) The machine needs to be turned on and off slowly to reduce the impact on the pipeline and diaphragm. Check whether the pipeline connection is loose before starting the machine. ) When transporting hazardous liquids, please connect the exhaust of the pump to a safe place to avoid danger when the diaphragm is damaged. ) Please clean it in time after transporting liquid that is easy to dry out to avoid damaging the diaphragm or being unable to start the next time. ) When the pipeline is long, the pipeline must be fixed and a pump cannot be used to bear the weight and vibration of the pipeline.
1. Overview
The diaphragm pump produced by our company adopts, absorbs and improves the most advanced pneumatic diaphragm pump production process and technology in the world. This product is specially designed for coal mines and has the characteristics of traditional submersible electric pumps. , mud pump, impurity pump, flexible shaft pump, all functions are a revolution in traditional mining water pumps. The key is to completely solve the safety issues of traditional water pumps. The product can provide high conveying speeds at low air pressures and is compatible with a wide range of materials. This water pump has an anti-stall design and a modular pneumatic motor/fluid part.
Pneumatic diaphragm pumps are used to discharge clean water underground in coal mines, or sewage containing solid particle impurities (volume concentration less than %). They can also be used in non-coal mines and other occasions with similar transmission media.
For inquiries, please call
Sun Xiao