DLSEALS пищевой односторонний силиконовый резиновый невозвратный клапан Duckbill (1600094341727)

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Product Overview


Product Description

DLSEALS Food Grade One Way Silicone Rubber Non Return Duckbill Valve
Duckbill check valve introduction
The shape of this product is similar to duckbill, so it is called duckbill valve. Duckbill valve is also known as check valve, one-way check valve, back pressure flexible check valve, rubber check valve, rubber slow closing, check valve, etc.
Working principle of duckbill valve:
When the appropriate pressure liquid or gas passes through the valve, the duckbill outlet opens the valve under the action of its own elasticity; as the internal flow pressure or pressure increases, the opening range of the duckbill valve also increases to keep the liquid in Discharge at high flow rate. When the water flow stops, the backwater pressure or atmospheric pressure will tighten the duckbill valve to prevent the backflow of liquid or gas.
Our company uses all-rubber structure, corrosion resistance, long service life and good effect. And provide a tight seal to prevent backflow, backflow, and maintenance-free. When installing a check valve, pay special attention to the flow direction of the medium. The normal flow direction of the medium should be consistent with the arrow direction indicated on the valve body, otherwise the normal flow of the medium will be blocked.


Place of Origin
Brand Name
Model Number
Processing Service
Product name
Duck bill check valve
fkm,silicoe, nbr
Custom Size
red, green
electrical appliances, cylinders, pumps, water pipes, valves
30-90 shore
High temperature vulcanization

Company Profile

DLSEALS has specialized in the development and production of sealing systems for 26 years , which were used in the Metallurgical,Electrical,Auto, Engineering machinery, Light industrial machinery and Electrical appliance manufacturing industries.
DLSEALS focus on customers' needs,as a dependable partner and reliable supplier to help you resolve supply or technical problems ,and improve the performance of your equipments or your business.
When you are facing emergency repairs situation or urgent orders,the highly responsive team of DLseals will offer you very short lead time.
DLseals has a global sales network,and our seals have been sold to more than 100 countries or areas ,Such as America, England, Canada, Australia, Russian Federation ect .


1. who are we?
We are based in Guangdong, China, start from 2010,sell to Northern Europe(20.00%),North America(20.00%),South America(15.00%),Western Europe(10.00%),Eastern Europe(10.00%),Southeast Asia(10.00%),Mid East(8.00%),Oceania(5.00%),Southern Europe(2.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
rubber seals,silicone ring,rubber parts,O ring

4. why should you buy from us not from other suppliers?
DL Seals Co., Ltd. is a professional seals manufactory with 15 years of history. We are specializing in the production of rubber sealing element series products.

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