Silicone Valve

8mm Silicone Slit Valve


FDA & LFGB approved platinum liquid silicone raw materials

Passed 7 days* 24 hours inverted leakproof test

One squeeze, one dispensing, no ertra slits

Non-stick cross slit cut 

Low Moq, factory price, fast delivery

Free samples can be provided for quality checking



Specification Of Leak-proof Silicone Slit Valve

Product NameFood Grade Flow Control 8mm Silicone Slit Valve Supplier In China
Model NumberHHSV28
MaterialFDA& LFGB Approved Food Grade Safe Liquid Silicone Raw Material
Color Clear Color
20 Shore A
Outer Diameter8MM
Slit Cut TypeCross Slit Cut
Slit Cut Size1.5*1.5/ 2*2/ 3*3 MM
Mold TypeLSR Injection Molding
ProcessTool Design - Tool Manufacturing - LSR Injection Molding - Whole Piece Inspection - Punching Cross Slit Cut - Add Talcum Powder - Punching Shape  - Quality Checking - Dust Free Packing - Shipping
MoldPublic Mold
MOQ50000 pcs
Daily Capacity200,000pcs/ line
Mold Cavity192CAV
MachineArburg LSR Injection Molding Machine 420C, Automatic Punching+ Inspection Equipment, Automated Optical Inspection Equipment
Machine Tonnage120T
WorkshopClass 100,000 Clean Optical Workshop And Silicone Valves Special Production Workshop
ApplicationFDA Certified Silicone Slit Valves Can Be Used For:  Honey Bottle Cap Dispensing, 28mm Bottle Caps, 38mm Flip Top Cap, Dispensing Bottle Caps And So On.
IntercomsEXW, FOB, CIF, DDP, Or Delivery To Assembly China Factories


  • Water Bottle Dispensing Silicone Valve

    Water Bottle Dispensing Silicone Valve

  • Honey Dispensing Silicone Valve

    Honey Dispensing Silicone Valve

  • Mayonnaise Dispenisng Silicone Valve

    Mayonnaise Dispenisng Silicone Valve

  • Ketchup Dispenisng Silicone Valve

    Ketchup Dispenisng Silicone Valve

  • Concentrates Dispensing Silicone Valve

    Concentrates Dispensing Silicone Valve

  • Hand Cream, Body Lotion Dispenisng Silicone Valve

    Hand Cream, Body Lotion Dispenisng Silicone Valve

Product Information

What Is Silicone Slit Valve?

LFGB certified silicone slit valve is a type of silicone valves, made of FDA & LFGB approved food grade liquid silicone material, with cross slit cut, clear color, 20 Shore A, haveing flow control and sealing function, can be used for dispensing closure valve caps, flip top closures, honey bottle caps and so on.

8mm Silicone Slit Valve

The Information Of Silicone Slit Valves In Public Mold?

We have cross slit valves, silicone duckbill valves, silicone NSF valves and silicone fermentation lid in public mold, inFormation is as below:

Item Name
O.D.Slit TypeHardnessSlit SizeMatched Plastic Valve Seat O.D
8mm Silicone Valve8mmcross slit20 Shore A1.5*1.5/ 2*2/ 3*3mm
9.8mm Silicone Valve9.8mmcross slit/ snowflake/ asterisk30 Shore A2.1*2.1/3*3/3.6*3.6/5*5mm11.85mm
10.5mm Silicone Valve10.5mmcross slit30 Shore A3*3/ 5*5mm12.3mm
13mm Silicone Valve13mm
Cross slit40 Shore A5.5*5.5mm14.6mm
16.5mm Silicone Valve16.5mm
cross slit30 Shore A3*3/5*5/6.5*6.5/7.8*7.8mm18.6mm
Silicone NSF Valve33mmcross slit40 Shore A5.5*5.5mm/
Silicone Duckbill Valve12.5mmduckbill slit50 Shore A5.4*5.4mm/
Silicone Fermentation Lid84mmduckbill slit50 Shore A5.4*5.4mm/

8mm Silicone Slit Valve

8mm Silicone Slit Valve

The Features Of Silicone Slit Valve?

1. Leak Proof

The slit cut of ISO14001 certificate silicone slit valve with zero clearance, so which can passed 24 hours*7 days Inverted Leakproof Test.

2. 100% Dispensing Passing Rate

Due to our unique technique, we can do non-stick slit cuts, slit tolerance is plus and minus 0.3mm, so our slit dispensing passing rate of ISO9001 certificate  silicone slit valve is 100%.

3. ±15 Degree Dispensing Angle

LSR injection molding silicone slit valve is one squeeze, one dispensing, no extra slits, and dispensing angle is within ±15 degree.

4. Uniform Wall Thickness

We import high-precision mold making equipment, production equipment, and inspection equipment from abroad, plus our more than ten years of production experience, so we can do precise silicone slit valve with uniform wall thickness.

5. Ultra Transparent Raw Material

No drip silicone slit valves made of ultra transparent and elastic food grade liquid pacifier silicone raw material, with good stretchability and no whitening.

8mm Silicone Slit Valve

About Hopewell

1. Production Workshop

100,000 clean production workshop and painting workshop and imported high-precision production equipments.

2. Testing Center

Complete quality inspection processes and automated testing equipment to improve inspection efficiency and quality control.

3. Independent Mold Room

With In-house precision mold design and mold making department, mold manufacturing accuracy controlled within 0.001mm.

4.Professional Engineering Team

Professional engineering team with more than 20 years of work experience, including 5 Japanese engineers.

5. Complete Certifications

For the company system, we have ISO9001, ISO14001, ISO13485, IATF16949 Certifications and we are also Green Partner of SONY.

For the silicone valves, we have EU food contact material certification and One Way Silicone Valve Patent. 

Regarding to the materials of silicone valves, we have FDA certification, LFGB certification, ISO10993 certification and Biocompatibility report.

8mm Silicone Slit Valve

If you are interested in non sticking silicone slit valves, please feel free to contact us.

How to Use

For this kind of high precision silicone slit valve, it's assembled together with the plastic valve set, then install to the plastic flip top caps as a whole set.


Manufacturing Process

Process Of 8mm Silicone Slit Valve

Tool Design - Tool Manufacturing - LSR Injection Molding - Whole Piece Inspection - Punching Cross Slit Cut - Add Talcum Powder - Punching Shape  - Quality Checking - Dust Free Packing - Shipping

8mm Silicone Slit Valve


Packing Of 8mm Silicone Slit Valve

For food grade silicone slit valves, to keep the product clean and not deformed while in transportation and in storage, normally, the packaging as follow: 

Item NamePCS/ PE BagPCS/ CartonCarton SizeN.W.G.W.
Flow Control Silicone Slit Valve 5000 pcs

8mm Silicone Slit Valve


  • 1

    Are you a manufacturer or a trading company?

    We're a manufacturer of silicone molding products, with about 10,000 square meters production workshops.

  • 2

    Can you provide free samples?

    Free samples can be provided for quality checking, freight cost need be charged.

  • 3

    What are the advantages of Hopewell to preduce silicone valves?

    Hopewell started producing silicone valves in 2011, we also have professional engineering team, precision mold manufacturing department and perfect quality control department, a 100,000-level clean production workshop, and has passed ISO9001, ISO13485, IATF16949 and ISO14001 certifications.

  • 4

    What is your MOQ for silicone valve?

    Our moq is 50000 pcs for four sizes cross slit silicone valves in public mold; for customized silicone products, the final quotation shall prevail.

  • 5

    Can you accept OEM/ ODM orders?

    Currently we only accept OEM orders.

  • 6

    What information do I need to provide for custom silicone valves?

    Please provide 2D and 3D drawings (STP format) or actual samples, then our engineering team will provide DFM for your confirmation.

  • 7

    What is the lead time for custom silicone valves?

    For prototype molds, the lead time for silicone valves is about 7-15 working days; for production molds, the lead time is about 15-45 working days.

  • 8

    Can I use your silicone valves mold?

    We only have four cross slit silicone valves mold can be used, other molds are customized by other customers.

  • 9

    Can you provide proof of raw materials?

    Yes, we can provide MSDS, FDA, LFGB test reports for confirmation.

  • 10

    Can you provide plastic valve seat samples?

    We have 4 sizes plastic valve seats in public mold, the outer diameters are 11.85mm, 12.3mm, 14.6mm and 18.6mm. Free samples are available, please contact us for more information.

  • 11

    Can i vist your factory?

    Of course, highly welcome.

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