BQG140/0.3 pneumatic diaphragm pump sold nationwide-diaphragm pump produced by major brands

Pneumatic diaphragm pumps are sold nationwide and produced by major brands of diaphragm pumps
. , shaft shaft construction, sewage discharge around mining working face troughs and various types of equipment, drainage, sewage sand discharge, mud discharge in underground cave chamber projects, whitewashing applications in mine tunnels, etc. The pneumatic 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 traditional submersible electric pumps, mud pumps, impurity pumps and flexible shaft pumps. 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.
Common faults
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, and all performance indicators should meet the rated capacity in the manual or be able to meet production requirements. Require. 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 is malfunctioning, repair the pressure adjustment gauge, repair or replace the pressure gauge< br/Causes and treatment methods of diaphragm pump pressure drop failure, insufficient oil replenishment in the oil supply valve, repair the oil valve, insufficient feed or leakage in the feed valve, repair the feed situation, feed valve, plunger seal oil leakage, repair the sealing part, and oil storage tank If the oil level is too low, add new oil. If the pump body is leaking or the diaphragm is damaged, check and replace the sealing gasket or diaphragm.
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. []
Structure of pneumatic diaphragm pump
Pneumatic diaphragm pump is composed of water outlet manifold, pump cover, pump body, water inlet manifold, diaphragm, ball, ball seat, outlet pipe, slide valve, muffler, Composed of piston, air inlet pipe, water inlet section, etc.
Working principle of pneumatic diaphragm pump
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 to control the valve The switch ensures positive flow of 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.
Technical features of pneumatic diaphragm pump
The pneumatic diaphragm pump for mining uses air flow to push the valve core to reciprocate, so that the pressure air enters the left and right air chambers alternately, causing it to push the diaphragm to reciprocate and make the working chamber A pressure difference is generated inside 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.
Technical parameters of pneumatic diaphragm pump
Model
Rated
Flow rate
/
Discharge
Pressure
Rated
Wind Pressure
Maximum
Air consumption
Passing particles
Maximum particle
Diameter
Length, width and height
Weight
Import and export
Pipe diameter
(inches)































































Contact Sun Xiao
Mobile phone
Fax
Email@
Jining Dongda Mechanical and Electrical Co., Ltd. is always around the country The Coal Mine Safety Supervision Bureau's guiding ideology for coal mine safety is to take coal mine safety as its own responsibility, build safe pneumatic diaphragm pumps, and eliminate hidden safety hazards in coal mines. We always insist on taking science and technology as the primary productive force, and the pneumatic diaphragm pumps we produce take quality as the basis of life and insist on relying on the power of science and technology to continue to develop. The company relies on the strengths of scientific research institutes such as Nanjing Design Institute, Jinan Design Institute, China University of Mining and Technology, Shandong University of Science and Technology, and Beijing Coal School, and aims at pneumatic diaphragm pumps with high starting points, high quality, and high-tech content, and is committed to coal mine safety and energy conservation. , development, production, sales and technical services of high-efficiency, environmentally friendly mechanical and electrical products, pneumatic diaphragm pumps. Jining Dongda Mechanical and Electrical Co., Ltd. now has ten series and more than 40 varieties of products. The main products are pneumatic diaphragm pumps and mining diaphragm pumps