10 Pieces 13 x 7.5 x 12 Duckbill Check Valve for Liquid and Gas Backflow Prevent

Description

10 Pieces Transparent Silicone Duckbill Valve One-Way Check Valve 13 x 7.5 x 12.5mm 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
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