• Stainless Steel Water or Liquid Flow Switch
  • Stainless Steel Water or Liquid Flow Switch
  • Stainless Steel Water or Liquid Flow Switch
  • Stainless Steel Water or Liquid Flow Switch
  • Stainless Steel Water or Liquid Flow Switch
  • Stainless Steel Water or Liquid Flow Switch

Stainless Steel Water or Liquid Flow Switch

IP Rating: IP67
Certification: RoHS, ISO9001, CE
Type: Flow Switch
US$ 88/Piece 1 Piece(Min.Order)
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Estimated freight per unit.

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
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Stainless Steel Water or Liquid Flow Switch pictures & photos
Stainless Steel Water or Liquid Flow Switch
US $55-88 / Piece
Min. Order: 5 Pieces
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Basic Info.

Model NO.
QFS-400 Flow Switch
Media Type
Transport Package
Standard Exporting Inner Box and Outer Carton
Shaanxi, China
Production Capacity

Packaging & Delivery

Package Size
80.00cm * 45.00cm * 40.00cm
Package Gross Weight

Product Description

Product Introduction:
Stainless Steel Water or Liquid Flow SwitchStainless Steel Water or Liquid Flow Switch
QFS-400 flow switch is a kind of real-time monitoring measurement instrument that used for liquid flow in pipeline .It adopts full metal jacket, no moving parts, output continuously adjustable, compact structure. 6 LED real time display the state of flow and output. Convenient installation, suitable for various pipe diameters. Widely used in hydropower and other pipeline fluid flow monitoring industry.
Model: QFS-400 Flow Switch

High accuracy, good stability, long working life and high reliability
Small in size,convenient installation
6 LED real time display.

Dimension Figure(mm):

Stainless Steel Water or Liquid Flow Switch
Stainless Steel Water or Liquid Flow Switch
Electrical connection:

Code Color NO.
Excitation + Brown 1
Excitation - Blue 3
Relay: Normally open White 2
Relay: Normally close Gray 5
Relay:COM Black 4
Transistor:NPN Black 4
Transistor:PNP Black 4
Technical Specifications:
Measuring media dilute non-corrosive liquids(water,oil…)
Measuring ranges bar 1~150cm/s(water),3~300cm/s(oil)
Excitation voltage Vdc 24±20%VDC
Output signal Relay SPDT(≤250VAC/30VDC, 3A)
Transistor NPN,PNP(≤24±20%VDC,1.2A)
Response time s 2s(1~15s)
Initialize time s 8s(2~15s)
Medium temp. ºC -20~80ºC
Environment temp. ºC -10~+70
Storage temp. ºC -25~85ºC
Consumption current mA <90mA
Overload pressure Mpa 10Mpa
Environment protection IP rating IP 67
Case Material                 304 SS
Material (wetted parts)                 304 SS

1. The wetted parts need to immersed in fluid.Installation in small diameter pipeline to ensure that the probe can't contact with pipe's inner wall.
2 .When the fluid can not completely fill the pipeline, products should be installed in the bottom of the pipe. (Figure 1)
 Stainless Steel Water or Liquid Flow Switch

3. If there may be sediment in the pipeline, please products installed in the pipeline side wall, horizontal mounting (Figure 2), to avoid the air and sediment
Stainless Steel Water or Liquid Flow Switch

4. Installation in a straight pipe close to bend or intersection place, the pipe length should not be less than 4 times the diameter of pipeline.

Packaging & Shipping:
All products can be shipped by International Express including EMS,UPS,FedEx,DHL and TNTas you required. By plane or by ship is available, too. The detailed can be discussed with our sales.We will choose the safe and cheapest way for you to reduce your cost. 
All products will be well packed in hard paper box properly and security. Packing list will be enclosed inside the box. Please take care of this when you unpack the package.
 Stainless Steel Water or Liquid Flow SwitchStainless Steel Water or Liquid Flow SwitchStainless Steel Water or Liquid Flow SwitchStainless Steel Water or Liquid Flow Switch
Our Services:
1. OEM/ODM Services:
Our company provides OEM/ODM services and Customized products services. 
With know-how technique and mass production capability, we are able to provide the specified sensing solution according to customer's application. 
What's your requirement? 
2. Quality Quarantee
We quarantee product quality for one-year starting from the date of delivery. 
Company Information:

Marketing under Our Brand "QYE"
Hanzhong Quan Yuan Electronic Co. Ltd is a professional high-tech enterprise that is committed to the research, development, design, manufacture and sale of load cells, high precision resistance strain gauges and pressure transmitters under the QuanYuan brand. They can be applied in the traditional force measurement field and are also widely used in the industrial automation production lines and metallurgical industry.

Meeting CE, RoHS and EX Requirements
As an ISO 9001:2008-certified company,all our electronic products have good performance and high quality because all products must be tested several times and they must undergo strict inspections before being dispatched from the factory. As a result, our load cells have passed CE and RoHS requirements and pressure transmitters have passed CE and EX standards.

Service Concept: Customer Satisfaction is Our Everlasting Pursuit
With several years' experience in manufacturing and selling load cells, strain gauges and pressure transmitters, we always adhere to our service concept of "customer satisfaction is our everlasting pursuit" and have built a professional team in sensor field to provide customers with first-class products, first-class services, first-class reputation and first-class principles.

Exporting to over 30 Countries Worldwide
With high quality and good service, our products have been exported to over 30 countries, which include the US as well as those in Europe, Southeast Asia, the Middle East and South America.
1. What is the MOQ?
For different product,the MOQ is different.But we can supply you samples.
2:How long will you give me the reply?
we will contact you in 12 hours as soon as we can.
3.How about the price?
As we believe the quality is the most important,we will provide the best quality product with reasonable price.
4:Could I visit your factory?
Of course,if you need we will help you to visit our factory.
5:If I have paid,when will you help me to produce?
When we have received the money in our account,we will give you the receipt and arrange to produce immediately.
6. What is lead time?  
If we have it in stock, we can ship it to you within about 3-5 working days. 
If we don't have it in stock, the lead time will be 10-30 days. 
If the product is urgent,please tell us and we will try our best to satisfy you.
7. What is the payment terms? 
All T/T, Western Union, L/C, Escrow,paypal  are acceptable. 
8. What is the express delivery? 
DHL, Fedex, TNT ,EMS, UPS etc. 
If you order large quantity products,the most economic shipping way will be by sea or by air transport. 
9. What is the quality guarantee? 
Quality guarantee:  12 months. 
If the product has quality problem within 12 months, please return it to us, we will repair it; if we can't repair it successfully, we will give you a new one; but the man-made damage, improper operation and force majeure will be excepted. 
And you will pay the shipping cost of returning to us, we will pay the shipping cost to you.
10. Is there any after-sale service? 
 After you receive our product, if you have any questions or need any assistance, we can provide you the after-sale service by e-mail,skype,trade manager,telephone and QQ etc. 


Stainless Steel Water or Liquid Flow Switch

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