DJL Diaphragm Metering pumps With high qualities

DJL Diaphragm Metering pumps With high qualities

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 500 unit/month

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Packaging & Delivery

Packaging Detail:	Export Carton Box
Delivery Detail:	7 days after received the payment

Specifications

DJL Diaphragm Metering Pump
Widely used in petroleum,
chemical industry, electric power, metallurgy, mining,

Product Description

Flow:0-120 lph

Pressure: 0-10Bar

Power: 60W, 50/60Hz

Drive System: 2 or 3 phase motor,

400V or 110V motor

Protection Degree: IP55

Flow Control: Manual operation

Material

Pump head: SUS304, SUS316, PVC, PTEF

Diaphragm: PTFE

Valve: SUS304, SUS316, PVC, PTEF

Valve ball: ZrO2, SUS304, SUS316, Ceramic

Work Condition

Envitonment temperature: -30°C --- 60°C

Package

Material: Carton

Measurement:36 x 25 x 30 cm

Gross Weight:

Technical Parameter

Model	Flow (lph)	Pressure (Bar)	Stroke (mm)	Frequency (min-1)	Diaphragm Diameter (mm)	Power (W)	Caliber (DN)
DJL10/10	10	10	3	75	60	60	6
DJL20/10	20	10	3	120	60		6
DJL40/8	40	8	4	120	60		6
DJL60/6	60	6	4	100	84		10
DJL80/5	80	5	5	100	84		10
DJL100/4	100	4	5	120	84		10
DJL120/4	120	4	5	150	84		10

Using reliable quality motor,380V or 220V or direct current machine is optional.

Features

1.Very high safety of operation. Mechanical actuate diaphragm. Changeable eccentric drive

2.Power off seal,no leakage,with security delivery device,simple maintance

3.It can transport high-viscosity mediums, corrosive liquid and dangerous chemical goods.

4.The flow can be controlled via adjusting the length of stroke or the motor frequency.

5.The diaghragm is made from multilayer complex structure to promote the life span, the first layer is Teflon anti-acid diaphragm, the second is EPDM stretch rubber, the third is 3.00 mm thick SUS304 that supporting the iron corn. The fourth is also the EPDM stretch rubber to cover all of the body.

Purpose

Widely used in petroleum, chemical industry, electric power, metallurgy, mining, shipbuilding,light industry, agriculture, national defense department and etc.

Q: Why does the centrifugal pump close the pressure to start?: Therefore, the operation rules of multistage centrifugal pumps require that the inlet valve be opened before opening, and the outlet valve is closed. However, the export valve closed time can not be too long, because at this time the medium in the pump cycle, the medium temperature gradually increased, easy to cause mechanical seals, due to lack of lubrication friction and wear or damage.

Q: A residential building with a floor height of 11 stories and a roof height of 33 meters. The height of the water tank is 37.7 meters. The basement is -3.3 meters, only set fire hydrant, fire pump only consider the indoor fire water, fire flow should be 10l/s. Now select a fire pump, concrete should be much traffic, big head, flow determine how? How to determine the head, I hope to say some more detailed, thank you, and there is to explain this question, why is the fire pump lift 120?. Thank you: Such as a large pressure of about 10m or about 0.1MPa} because the most unfavorable point fire hydrant requires more than 0.07MPa (7m) and 0.5MPa (50m) is not greater than the pressure, so unless the pump is located in the 50m Valley is still lower than the garage, or add to the valve (or the use of fire hydrant decompression) otherwise, it is 120m lift pump

Q: Troubleshooting of diaphragm pump: The ratio of flow to water weight at a specific weight of --68F. 68F water has a specific gravity of 1Static suction head - the vertical distance from the liquid level to the central line of the pump. The pump shall be above the level of the liquid.Vapor pressure the pressure of all the steam on the free surface of the liquid. In any pump operating system, the operating pressure shall not be lower than the vapor pressure, otherwise the steam will be partially or completely cut off into the pump fluid. Viscosity - because of the presence of friction in the fluid, the property of viscosity gives the fluid resistance to flow.Water hammer action -Water hammer is a sudden power failure, or in the valve closed too fast, due to pressure, flow of inertia, produce water shock waves, like hammer hammer, so called water hammer. The force produced by the flow of water shock waves can sometimes be very large, thereby damaging the valves and pumps. Water hammer effect refers to the inside of the water pipe, the pipe wall is smooth, flow freely. When the opening of the valve suddenly closes, the flow of water to the valve and the tube wall, mainly the valve, will produce a pressure. As the pipe wall is smooth, the subsequent water flow in the role of inertia, the fastest reach the maximum and damage, which is the water conservancy "water hammer effect", that is, "positive water hammer.". This factor should be taken into consideration in the construction of water conservancy pipelines. On the contrary, the valve closed in a sudden opening, it will produce water hammer, called negative water hammer, but also a certain destructive power, but not the former big.. Causes and treatment methods of common failures of diaphragm pumps:

Q: How does the centrifugal pump pump and cut the pump?: Check the motor, pump and fasteners in good condition; whether the lubricant is added or not;Disc dynamic coupling, whether or not stuck phenomenon;Open the inlet valve, remove the gas in the pump or pump the gas out of the pump;

Q: What is the minimum continuous flow of a pump?: Quality solutionsMinimum flow of pump, minimum continuous flow of pumpIn order to ensure the proper use of the pump and the normal operation of the pump manufacturer will indicate the minimum pump in the sample of the continuous operation flow, the correct selection or use to warn or instruct users. According to the provisions of the API standard, the minimum continuous flow into the minimum continuous stable flow and continuous flow. Most small thermal limit(1) the minimum continuous stable flow.API standard specifies the minimum continuous stable flow refers to the vibration limit does not exceed the standard set by the pump can work normally. The minimum flow pump at small flow rate, there will be noise and vibration increase, API of this provision is to ensure that the service life of the pump, avoid due to improper operation of the pump caused by the adverse effects.

Q: Variable flow pumps are variable pumps: Yes. The variable pump is designed to change the flow rate

Q: What is the dry running protector of screw pump? What's the principle and function? Thank you: Principles are generally temperature sensing, such as: when the screw pump by air, the stator and rotor will be heated due to friction,

Q: Does vacuum pump oil belong to dangerous goods?: Absolutely not. We often send oil by express or by freight. There are no problems at all. Don't be afraid, don't burn, explode

Q: How many kilograms of water pump are there in the automatic washing machine on the market?: Suitable for supporting high pressure sprayer, portable car washer. Water pump with overflow circuit. And comes with pressure switch, overflow switch double insurance

Q: What is the series of pumps? What is the difference between a unipolar and a multilevel? What is the meaning of each "first class"?: Each impeller is of the first stage. (two impellers share only one level, and exit is only level one)

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