battery operated diaphragm PWM adjustable speed pump with brushless dc motor
There are three main types of diaphragm pumps
Those in which the diaphragm is sealed with one side in the fluid to be pumped, and the other in air or hydraulic fluid. The diaphragm is flexed, causing the volume of the pump chamber to increase and decrease. A pair of non-return check valves prevent reverse flow of the fluid.[1]
Those employing volumetric positive displacement where the prime mover of the diaphragm is electro-mechanical, working through a crank or geared motor drive, or purely mechanical, such as with a lever or handle. This method flexes the diaphragm through simple mechanical action, and one side of the diaphragm is open to air.[2]Those employing one or more unsealed diaphragms with the fluid to be pumped on both sides. The diaphragm(s) again are flexed, causing the volume to change.When the volume of a chamber of either type of pump is increased (the diaphragm moving up), the pressure decreases, and fluid is drawn into the chamber. When the chamber pressure later increases from decreased volume (the diaphragm moving down), the fluid previously drawn in is forced out.[3] Finally, the diaphragm moving up once again draws fluid into the chamber, completing the cycle. This action is similar to that of the cylinder in an internal combustion engine. Diaphragm Pumps deliver a hermetic seal between the drive mechanism and the compression chamber, allowing the pump to transfer, compress, and evacuate the medium without a lubricant.
PWM adjustable speed pump's parameter and features
1. Small and powerful
2. Extreme chemical resistance
3. Brush and brush-less direct current motor for selection
4. Dry running, durable and maintenance free
5. Self-priming and excellent for pressure
6. Low noise, longer endurance lifetime than other normal membrane pump
| Model | DXW524-2206-3700 |
| Size(mm) | 102.4*70*40 |
| Voltage(V/DC) | 6V/9V/12V/24V |
| Power(W) | 7 |
| Free Flow(L/M) | 11 |
| Pressure(Kpa) | 220 |
| Vacuum(Kpa) | -75 |
| Weight | 300 |
Remark: Usually our pump has 4 kinds of voltage:6V, 9V,12V and 24V.
When you choose pump, you can tell me the pump's voltage you need.
We can do it for you.
environmental testing requirements about PWM adjustable speed pump
| Number | Item | Test conditions and requirements | Remarks |
| 1 | Steady-state heat and wet | 60%rh | High humidity can affect the electrical performance of the motor |
| 2 | Temperature Shock | The pump was placed at -20 ℃ environment ,after 1h immediately placed at + 70 ℃ ± 3 ℃ environment for 1h.This is for 1cycle. After 50 cycles was returned to room temperature.0.5h later,pumping power test is conducted. The pump should be able to work properly; fasteners should not loose , in working condition pump’s body should not be leakage when block pump’s outlet. | too high temperature affect pump’s parameters, life and electrical performance |
| 3 | High temperature test | Pump is at 70 ℃ ± 3 ℃ environment for 48h. Then take it out. After 0.5hours later, at room temperature power pump. Fastening points should be no loose. The pump can work normally. Its performance and parameters can not change. | |
| 4 | Low temperature test | For 72 hours,pump is at -20 ℃ environment. Then take it out. Power the pump and test it.( when testing the pump,pump’s body can not have ice ). Fastening points should be no loose. The pump can work normally. Its performance and parameters can not change. | In too low temperature,motor cannot be started
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Environmental Requirements about PWM adjustable speed pump
| | Working Environment | Storage Environment | Transportation Environment |
| Temperature Range | -30℃~66℃ | -30℃~70℃ | -30℃~70℃/Smooth |
| Relative humidity range | 60%rh | 60%rh | 60%rh |
Electrical Performance about PWM adjustable speed pump
| Number | Item | requirements |
| 1 | Insulation resistance | 10MΩ / between wire and frame measurements , 500VDC / min |
| 2 | Dielectric strength | 5mA Max/between wire and frame measurements 500 VAC/min
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Special requirements for materials about PWM adjustable speed pump
All materials comply with environmental standards.
Motors comply with EMC.
pump material is nonflammable or any fire should be fully extinguish within 30
seconds under 10 seconds of ignition test.
PWM adjustable speed pump's dimension
Unlabeled tolerance is ± 0.1mm.
Pump Size:102.4*70*40mm
Pump Weight:300g;
Outlet:OD 5mm, silicone hose suggestion:ID 3.5mm
Materials:pump body: PC/PPS, diaphragm: EPDM
Because we use imported ball bearing,the pump’s performance is stable and high.
The membrane is made by EPDM and pump's body is made by special PC/PPS which make pump well endurance and strong chemical resistance.
External PWM speed control principle
1, control board wiring diagram
2, external use PWM speed control principle
Description: 1, the external PWM signal by a small MOS tube or after the transistor processing, received a speed adjustment (such as above).
2, the frequency of PWM signal can be adjusted by 100HZ-1KHZ, and the change of speed regulation 0-6V can be realized by adjusting the duty ratio.. When the duty cycle is 100% (i.e., total height), the speed regulation is 0V, and the time ratio is 0 (i.e., the total low), the speed regulation is 6V, and the speed is at full speed.
PWM adjustable speed pump's photo
Our company offers multiple component configurations allowing pump to be used for either vacuum operation, pressure operation, or alternating vacuum and pressure operations.The innovative, compact design incorporates leading edge technologies that allow it to operate harder, quieter and longer, reliable, highly efficient.
Its flow can deliver up to 3 L/min and 18L/M.
Usually our pump has 4 kinds of voltage:6V, 9V,12V and 24V .
When you choose pump, you can tell me the pump's voltage you need.
We can do it for you.
You can choose pump according to our model.
In addition,it can be mounted in any position.
PWM adjustable speed pump's application
Mainly used in household appliances, laboratory equipment, environmental monitoring, gas monitoring, automotive tires and other fields.
PWM adjustable speed pump's packing and shipping
Packaging:
CTN/PCS: 60PCS
G.W. : 19.5 KG
DIMENSION : 47 * 31 * 25 CM
1. We can ship by DHL, UPS, FedEx ,TNT, EMS, HONGKONG post etc.DHL, UPS, FedEx, TNT takes about 3-5 workdays for delivery.
2. And we will help choose the most cost-effective way for you according to your requirement.
3. The tracking number will be available the next day after shipment,then you can check your goods is on the way.
User Instructions
1. will not guarantee the products if the application of our products are exceeded the limitation which is specified on this specification.
2. In case of changes of the specification specified on this document. A written notice is requested in advance.
3. there is any data or related documentation different from this data sheet.This data sheet is the principle reference.
4. Please do not use it in the environment of corrosive gas or liquid or any detrimental gas. 5.While the motor is in operation,please do not lock the motor intentionally for a long periods,since the continuous stoppage will result in overheat and thus burnt out the motor.
FQA
Q1: Can I have a sample order for it?
A: Warmly welcome of sample order to test and check quality. Mixed samples are acceptable.
Q2: What about the lead time?
A: Sample needs 3-5 days, mass production time needs 1-2 weeks, if bulk qty need about 20-25workdays.
Q3: How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q4: How to proceed an order?
Firstly let us know your requirements or application.
Secondly We quote according to your requirements /our recommend model with suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q5: What's your payment terms?
A: T/T & L/C, small amount accept paypal. Big amount ok for 30% down payment & balance against copy bill of loading.For more need, please just contact us and we will reply within 24hours on working days.
Q6. Is it OK to print my logo on this product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 6-12 months warranty to our products & 1% wear out parts for after service.
Q8: What’s your main marker?
A: North America, Korea & European
Q9: Do you have ability to do ODM service?
A1: Warmly welcome your ODM requirement based on our production line and our R&D team with more than 16 years experience on pump& motors.
A2: ODM service based on offered sample. B:Oo modify & creative new function based on our product series.
Q10. Do you have any MOQ limit for led light order?
A. No MOQ, 1pc for sample checking is available.
Product Tags:
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Battery Operated Brushless Diaphragm Pump PWM Adjustable Speed With DC Motor Images
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