10 Pieces Red 4x2x10mm Duckbill Check Valve for Liquid and Gas Backflow Prevent

Description

10 Pieces Red 4x2x10mm Duckbill Check Valve for Liquid and Gas Backflow Prevent
The original product is safer and the quality is guaranteed.
It is a good helper for breastfeeding, showing mother's love.
This valve adopts silica gel material. It does not contain bisphenol A or does not produce any harmful substances. It can be washed at high temperature. You can rest assured to use. It can be also heated for disinfecting.
100% full rubber or silicone structure, can meet a variety of high temperature.
No clogging good sealing effective prevention of liquid gas backflow
All-rubber structure corrosion resistance long service life good effect And provide a tight seal prevent backflow maintenance-free.
When installing the check valve special attention should be paid to the direction of flow of the medium and the normal flow direction of the medium should be consistent with the direction of the arrow indicated on the valve body otherwise the normal flow of the medium will be cut off.
Opening the pressure is small generally open 1-5KPA pressure liquid or gas it can open, good sealing
Easy to install
Silicone Duckbill Valve
Made from  Environmentally friendly silicone material
Hardness 45 5 Shore A
Color:Red
Note:
Because duck-billed valve often contacts with breast milk, sometimes harmful bacteria may be easily produced due to insufficient cleaning. It is recommended to replace it 1-2 times a month.
Package Contents: 10x silicone duckbill valve
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-2cm.
Duckbill valve works:
Duck bill valve is also known as a rubber check valve a back pressure flexible check valve a duckbill valve check valve a rubber check valve and a rubber slow closing check valve.
Duckbill valve material can use food grade silicone or rubber material In the absence of internal pressure the duck bill outlet closes under its own elasticity as the internal pressure gradually increases the duck bill outlet gradually increases keeping the liquid drained at high flow rates.
The valve opens when the appropriate pressure fluid  gas passes through the valve.
When the flow rate or pressure increases the opening degree of the duckbill valve also increases
When the water flow stops the backwater pressure or atmospheric pressure will press the duckbill valve tightly to prevent backflow of liquid or gas
The pressure required to open the duckbill valve is very small
The pressure of the small duckbill valve produced is generally 1-5KPA Due to the convenient opening and closing of the duckbill valve and good sealing
it can effectively prevent the backflow of liquid and gas and meet the application requirements in many fields
For example medical equipment, machinery, and equipment daily necessities electronic, equipment irrigation,  animal husbandry etc.
Package Content:
10PCS Silicone Duckbill Valve
Payment:
1 We only receive payment via Paypal.
2 The buyer is responsible for any tax and/or duty charged by their country.
Shipping:
1 We could use ePacket, EMS, DHL,CHINA POST ,SINGAPORE POST.
2 We usually write "the product name" for declared to help you to don?t pay any kind of duty or tax.
For bulky item, we may write toy or sporing toy or sporting accessary on waybill,to avoid of your burdening more tax and duty
3 The packages can be sent out within 2 days time after payment arrived. If something special noted, we will contact and explain you.
4   The shipment is registered delivery and the waybill number can be tracked. By the way, the tracking information updating speed depends on different destination country.
All the packages sent using Registered Post always need wait about 4-7 days? time for show information.
5 Arrival delay by Singapore post:
We cannot control if the post office have delay. Be patience because we will keep the contact for some special situation.
6 All the retail box will remove before sent out the item.
Refund and Resend:
We provide a 15 days of warranty.
Please Note: We do not cover any item damaged after use or as the result of water damage.
How to ask for a refund or resend:
Step 1) Contact us via message box.
Step 2) You must provide as many details as possible about the problem you are having
Step 3) The return authorization will be issued.
Step 4) You must return the item for the agreed exchange or money refund.
All return shipping costs are the responsibility of the buyer.
Contact us
1. Ebay message box
2. Send Email to us.
3. Get our Tel or Fax number.
Feedback
We maintain high standards of excellence and strive for 100% customer satisfaction!
Feedback is very important to us.
We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.