Silicone Valve

Silicone Molding Duckbill Umbrella Combination Valve


Made of high flexible and quality silicone material

Non-stick slit cut for better flow control

Combination of air inlet and pressure-relief valve

Welcome OEM designs

Factory price, low MOQ, fast delivery

Free samples can be provided for quality checking



Item NameOutside DiameterSlit TypeSlit Size
Duckbill Umbrella Combination Valve12.5mmDuckbill Slit5.4mm


  • Medical devices

    Medical devices

  • Home appliances

    Home appliances

Product Information

Product NameSilicone Molding Duckbill Umbrella Combination Valve for Flow Control
Model NumberHHSV33
MaterialFDA&LFGB Approved Silicone
Hardness50 Shore A
Outside Diameter12.5mm
Slit TypeI shape Slit (Welcome customized slits)
Slit Size4.1mm
Mold TypeVacuum Compression Molding
Mold CavityCustomized
Daily Capacity50,000pcs/ line
MOQ50,000pcs/ size
Description1.Silicone molding duckbill umbrella combination valve for flow control supplier,outer diameter is 12.5 mm,slit type is I shape,slit size is 5.4*5.4 mm.

2.No leakage silicone duckbill valve made of food safe high elastic and ultra-transparent liquid silicone, LFGB and FDA approved.

3.Silicone umbrella valve processed by vacuum compression molding, daily capacity reaches to 50,000pcs per line. The capacity can be adjusted according to customer's production schedule.

4.Duckbill umbrella valve inverted leak proof flow control function is tested and approved by customer, welcome custom silicone control valves.
5.As a combination of silicone umbrella valve and silicone duckbill valve, this silicone two way valve can be used in many areas, such as automotive, medical devices, home appliance, toys and so squeeze, one dispensing, no leakage, no extra splits.

6.Non-stick silicone duckbill valve vent and relief valves, even umbrella and duckbill cut makes it easy for liquid for liquids, juice concentrate,water,concentrates dispensing,water dispensing,juice dispensing,beverage dispensing,soy sauce,vinegar bottle lids dispensing.

7.The dispensing angle of the duckbill umbrella valve

is controlled within 30 degrees.

8.Food grade PP valve seats of silicone duckbill valve are available for selling, saving time for customers to develop a new plastic dispensing closure.

9.The silicone umbrella valve have a lot of stocks,duckbill umbrella valve stocks size is:12.5 mm outer diameter,I shape slit type,5.4*5.4 mm slit size.

10.The sports water bottle dispensing silicone duckbill valve is transparent,with good pulling force and elasticity.

11.LSR Injection molding silicone umbrella valve is 100% New PP Raw Material,the liquid dispensing duckbill umbrella valve has Raw material LFGB certification and LIM-9150 Liquid Silicone LFGB Certification.we also have One Way Silicone Valve Appearance Patent for silicone duckbill valve in no drip,no hassle,no spill function.

12.For silicone umbrella valve,we used TaiWan Union M7 series injection molding machine,high precision machines make our duckbill umbrella valve higher quality and more leak-proof.

13.We have 26 sets Liquid Injection Molding Machines,6 sets Compression Molding Machines,30 sets 50 Times CCD Magnified Full Inspection Equipment,Class 100,000 Clean Production Workshop,Class 10,000 Full Inspection Room,3 sets Silicone Valve Punching+Inspection Equipment,3 sets AOI Visual Inspection Equipment,2 lines UV Plasma Surface Treatment for silicone duckbill valve.

14.Hopewell has over 10 years in producing custom silicone and plastic flip top cap beverage dispensing closures,we have many certificates for silicone valves and plastic caps,such as:ISO9001 certificate,ISO14001 certificate,ISO13485 certificate,Clean-room production workshop,One Way Silicone Valve Appearance Patent,Raw material LFGB certification,LIM-9150 Liquid Silicone LFGB Certification.welcome to customize plastic dispensing caps,silicone valves and other silicone products.

Manufacturing Process

Manufacturing Process


Before shipment, we’ll check with customer to choose the best shipping method.



  • 1

    Can I get free samples?

    Yes, free samples can be offered, shipping costs to be paid by customers.

  • 2

    Can I change the slit size of the duckbill umbrella valve?

    Yes, welcome custom slit types and slit sizes.

  • 3

    Shall we pay the silicone two way valve mold or tooling cost?

    Since the mold of this silicone duckbill umbrella combination valve belongs to our customer, for mass production, you need to open your own new mold.

  • 4

    Do you know how is the duckbill valve is assembled?

    For this kind of customized silicone duckbill valves, it’s usually designed by our customers, so we regret that we’re unable to share the assembling process to you.

  • 5

    Can I buy the silicone duckbill umbrella valve?

    We regret that this silicone valve is not for selling. If you want to buy in a large batch, then you need to contact us to develop your own tooling.

  • 6

    Can I order customized silicone check valves?

    Yes, as a professional manufacturer of premium quality silicone control valves, we highly welcome custom made flow control valves.

  • 7

    What shall I offer to custom a silicone dispensing valve?

    For custom silicone valves, please kindly offer us 3D drawing or actual samples, we’ll be able to start the evaluation.

  • 8

    Are you using platinum silicone material?

    The silicone duckbill umbrella combination valve is made of high elastic silicone material with platinum vulcanization agent.

  • 9

    Do you accept customized packaging?

    Yes, we highly welcome custom made packaging, please provide us the detailed requirements.
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