Silicone Valve

Silicone One Way Duckbill Air Flow Control Valve


Medical grade silicone raw materials

7 days* 24 hours inverted leakproof test

Non-stick slit for air flow control

Welcome customized duckbill check valves

Factory price, low MOQ, fast delivery

Daily capacity reaches to 200,000pcs per automation production line



Item NameOutside DiameterSlit TypeSlit Size
Silicone One Way Duckbill Air Flow Control Valve6mmDuckbill Slit1.6mm


  • Medical Device, Medical Components, Disposable Medical Products

    Medical Device, Medical Components, Disposable Medical Products

Product Information

Product NameDisposable Mini Silicone One Way Duckbill Air Flow Control Valve
Model NumberHHSV04
MaterialMedical Grade Silicone
Hardness30 Shore A
Outside Diameter6mm
Slit TypeI shape Slit (Welcome customized slits)
Slit Size1.6mm
Mold TypeCompression Molding
Mold Cavity192CAV
Daily Capacity50,000pcs/ line
MOQ50,000pcs/ size

1.Disposable mini silicone one way duckbill air flow control valve factory in china,outer diameter is 6 mm,slit type is duckbill slit,slit size is 1.6 mm.material is medical grade silicone,hardness is 30 shore A,slit type is I shape slit,mold type is compression molding,mold cavity is 192CAV.

2.Air flow control valve made of high elastic medical grade silicone, with bio-compatibility testing report.

3.One way duckbill valve processed by compression molding, daily capacity reaches to 50,000pcs per line.

4.Disposable mini silicone valve inverted leak proof test for 7 days* 24 hours, there is no leakage for duckbill silicone valve.

5.Air flow control valve tolerance of the curved wall thickness is controlled within 0.03mm,one squeeze, one dispensing, no leakage, no extra splits.

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

7.The dispensing angle of one way duckbill valve is controlled within 30 degrees.

8.The flow control function is tested and approved by customer, welcome custom duckbill valves.

9.The disposable mini silicone valve is transparent,also welcome to customized other colors,with good pulling force and elasticity.

10.Compression molding air flow control valve is 100% New PP Raw Material,the liquid dispensing one way duckbill valve has Raw material LFGB certification and LIM-9150 Liquid Silicone LFGB Certification.we also have One Way Silicone Valve Appearance Patent for disposable mini silicone valve in no drip,no hassle,no spill function.

11.For air flow control valve,we used TaiWan Union M7 series injection molding machine,high precision machines make our one way duckbill valve higher quality and more leak-proof.

12.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 disposable mini silicone valve.

13.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


Item NamePCS/ PE BagPCS/ CartonCarton SizeN.W.G.W.
Mini Duckbill Valve2,000pcs100,000pcs35*26*42CM6.5KGS7KGS

Disposable Mini Silicone One Way Duckbill Air Flow Control Valve


  • 1

    Can I get free samples?

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

  • 2

    Can I change the size of the silicone valve slit?

    Yes, welcome custom slit types and slit sizes.

  • 3

    Shall we pay the silicone valve mold or tooling cost?

    Since this mini duckbill valve mold 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 duckbill valve?

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

  • 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 one-way silicone valve?

    For a custom silicone one way valve, 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 medical grade duckbill valve is made of medical grade silicone 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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