DJL Diaphragm Metering pumps With high quality

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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. 


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Q:Why should the pump be closed when the centrifugal pump is started?
Centrifugal pump has an important characteristic: when the pressure (head) is very low, the flow will be great, which can be seen from the characteristics of the pump curve. While the pump power is directly proportional to the flow rate, pump start, no pressure in the pipeline, caused by the pump flow, high power pump, and the pump motor, the rotating part from rest to high-speed operation, need a lot of acceleration, it will cause a great starting current
Q:Double floor sewage pump circuit diagram of a small problem
Q 2, SA and SS are select switches, and different positions indicate the same difference between the two nodes. SA hits the left position 13, 14 to connect, hits to the right position 21, 22 to connect. SS hit the middle position, 5 and 6 turn on, 7 and 8 turn on; hit the right position; 1 and 2 turn on; 11 and 12 turn on; hit the left seat; 9 and 10 turn on; 3, 4 turn on.
Q:Why does the centrifugal pump start with a closed valve and the axial pump starts with an opening valve?
Because the characteristic curves of the two are different.The power of centrifugal pump decreases with the decrease of flow rate. When the flow rate is zero, the power is minimum, so the centrifugal pump is started with a closed valve.
Q:Working principle and diagram of axial piston pump with pressure compensation variable
Adjust the flow characteristics, the first limit screw to the top, according to the flow and pressure changes in the required range, adjusting the spring set, the initial flow pressure began to change to meet the requirements, then the limit screw to the ultimate pressure when the flow is no longer changed, the relationship between flow and pressure the changes are determined by the pump itself.
Q:Does the control cabinet of the fire control pump need to be related to the fire control room?
Automatic sprinkler, which is mostly used in this device or high water tank, the whole set of equipment must meet the most unfavorable point (the farthest the highest point of water) water pressure of the faucet.
Q:What is the difference between centrifugal pump and self suction pump? Which is better?
In order to prevent the filling liquid into the pump shell because of gravity flow in the low groove, in the pump suction pipe at the entrance of a non-return valve (valve); if the location of the pump below the liquid level in the tank, then start without irrigation pump.Self-priming pump is a self-priming centrifugal pump, centrifugal pump is a kind of.Specific choice of a pump, depending on your specific parameters and conditions of use.
Q:Does the reservoir water heater press the booster pump (high marks)?
The outlet water pressure of hot water is the same as that of cold water. The water heater is pushed by cold water to push out the hot water. (of heating). Installation location about 2 meters away from the ground, the impact of water pressure is not large, in rural areas, the installation position in more than two buildings will have an impact. In the city, the installation position is above four floor to affect the water pressure.
Q:Advantages and disadvantages of centrifugal pumps?
The centrifugal pump has no valve, so it is suitable for conveying suspended liquid, and the special design can also transport large solid suspensionThe pump can be made of chemical resistant material, which is suitable for conveying corrosive solution.The utility model has the advantages of simple structure, few parts, little failures, durability, low maintenance cost, convenient management and reliable work.The output can be adjusted even by the discharge valve fully closed, there is no danger of infinite rising pressure head.The liquid is transferred to a large quantity. And the pressure head does not require large, most suitable for centrifugal pump.
Q:The function of centrifugal pump
4, bearings are set on the pump shaft supporting the pump shaft components, there are two kinds of rolling bearings and sliding bearings. Rolling bearings use butter as a lubricant, refueling should be appropriate, generally 2/3 ~ 3/4 of the volume is too much, will heat, too little, there is noise and fever! The plain bearings are made of transparent oil as a lubricant and fill up to the oil level. Too much oil will leak out along the pump shaft and float *, too little, the bearings will overheat and burn out, causing accidents! In the pump running process, bearing temperature is highest in 85 degrees, generally run at about 60 degrees, if higher, will find the reason (whether there is impurities, whether the oil is black, whether water) and timely processing!
Q:What is the difference between centrifugal pump and positive displacement pump?
The centrifugal pump is to rely on high-speed rotation of the impeller to do work on the fluid. These two types of pumps are also the most widely used.

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