10PCS 8x3.2x4.5mm Duckbill One-way Check Valve for Liquid Gas Backflow Prevent

Description

10 PCS
8x3.2x4.5mm
Duckbill One-way Check Valve for Liquid and Gas Backflow Prevent
Specification:
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:Black
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:
>
10
x S
ilicone
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.
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3. Get our Tel or Fax number.
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