Silicone Valve

Factory Price Flapper Valve Silicone Seals Manufacturer


Environment friendly high quality silicone materials

Factory price, fast delivery

Custom silicone seals for flapper valves

Welcome OEM orders

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

Professional engineer team to help you solve all problems



Item NameOutside Diameter(mm)Inside Diameter(mm)
Flapper Valve Silicone Seals18mm7mm


  • Hydration Bottle

    Hydration Bottle

  • Sports Water Bottle

    Sports Water Bottle

Product Information

Product NameEco-friendly High Quality Factory Price Flapper Valve Silicone Seals Manufacturer in China
Model NumberHHFS
MaterialEco-friendly FDA Solid Silicone
Hardness40 Shore A
Outside Diameter18mm
Inside Diameter7mm
Mold TypeVacuum Compression Molding
Mold CavityCustomized
Daily Capacity200,000pcs/ line
MOQ50,000pcs/ size

1. High quality factory price flapper valve silicone seals manufacturer in china,outer diameter is 18 mm,Inside Diameter is 7 mm,material is Eco-friendly FDA Solid Silicone,hardness is 40 Shore A.

2.Flapper valve made of food safe environment friendly solid silicone, with FDA certification.
3.Silicone seals processed by vacuum compression molding, welcome custom silicone flapper valve seals.
4.Flapper valve inverted leak proof test for 7 days* 24 hours, there is no leakage for cross slit silicone valve.

5.Silicone seals wear resistant flapper one way valve seals, our factory can adjust the capacity according to customers' production schedule.

6.Hardness, dimensions and tolerance of flapper valve can be as customer's requirements.

7. As a manufacturer of silicone seals for flapper valves, we have a professional team that produces custom silicone products for over 10 years, no matter it's tight tolerance silicone valves, or a simple water bottle silicone sealing ring, we all have strict quality control,delivery price,fast delivery.

8.Flapper valve is transparent,with good pulling force and elasticity.

9.Compression molding silicone seals is 100% New PP Raw Material,the flapper valve has Raw material LFGB certification and LIM-9150 Liquid Silicone LFGB Certification.we also have One Way Silicone Valve Appearance Patent for silicone seals in no drip,no hassle,no spill function.

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

11.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 flapper valve.

12.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 size of the flapper valve silicone seals?

    Welcome custom silicone one way flapper valve seals.

  • 3

    Shall we pay the tooling costs of the silicone flapper valve seals?

    For public sizes, the molds are existing, there is no mold or tooling charges. While for custom silicone seals or silicone valves, the molds belong to customers, if needed, you need to develop you own mold, please contact us for best quotation.

  • 4

    Do you have a video to show how to assemble the silicone valve seals?

    We regret the assembly is finished by the customer, therefore, we are unable to share any video.

  • 5

    Can I buy the valve seal mold only?

    Yes, we can supply either the mold or the silicon flapper seals according to customer’s requests.

  • 6

    Can I order customized silicone one way valve?

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

  • 7

    What shall I offer to custom a silicone flapper valve seal?

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

  • 8

    Are you using platinum silicone material?

    Yes, all silicone flow control valves are made of eco-friendly silicone with platinum vulcanization agent.

  • 9

    Do you accept customized packaging?

    Yes, we highly welcome custom made packaging, please provide us the detailed requirements.
Copyright © Dongguan Hopewell Silicon Plastic Tech Co., Ltd. All Rights Reserved | Sitemap | Powered by