Injection Molded Silicone Duckbill Valve for Breast Pumps

• Media: Water
• Temperature: Low Temperature
• Actuator: Manual
• Material: Silicone
• Structure: Umbrella Valves
• Sealing Form: Gland Packings Globe Valve
• Model NO.: melon230222.
• Stem Thread Position: Outside Screw Stem Globe Valve
• Application: Oxygen Globe Valve
• Standard: Customzied
• Process Way: Compression/Injection
• Tolerance: DIN ISO 3302-M2
• Certification: RoHS/Reach
• Materials: LSR / Silicone
• Working Temperature: -40c-220c
• Design Type: Umbrella, Duckbill, Flapper, etc
• Transport Package: Customzied
• Specification: Customzied
• Trademark: OEM
• Origin: Made in China
• HS Code: 4016101000
• Production Capacity: 500000

Product Description

Customized Liquid Silicone Rubber Umbrella Valves/One Way Check Valves

Zhongshan Melon Rubber & Plastic Products Co., Ltd. offers high-quality silicone umbrella valves for a wide range of applications. These valves are commonly used in vessel vent valves, piston- and diaphragm pumps, breathing masks, and various other fluid control functions in medical devices, home appliances, cars, and toys.

Umbrella valves are elastomeric components with a diaphragm-shaped sealing disk or umbrella shape. They serve as essential sealing elements in backflow prevention devices, one-way check valves, vent valves, pressure relief valves, and metering valves.

Product advantages:

Product Description

Zhongshan Melon Rubber & Plastic Products Co., Ltd.

Product Description

Our rubber umbrella valve is designed with a 100% rubber or silica gel structure, offering high temperature resistance and environmental friendliness. It effectively prevents liquid and gas backflow, ensuring a long service life with no failures. The valve has a small opening pressure, typically 1-5KPA, making it easy to open. Installation is simple, and the benefits of our silicone rubber umbrella valve include:

• Enhanced sealing


• Position independence


• Variable opening pressure through seat thickness


• Corrosion, chemical, wear, and aging resistance

Technical Specification
Material	NBR, NR, EPDM, FVMQ,HNBR,LSR,CR,Silicon, PU,SBR,IIR
Size/Color	Customized
Hardness	20-90 Shore A
Processing Way	Compression, injection, injection transfer, extrusion, silicone liquid injection
Certificates	SGS, RoHS. Reach
Packing	PE plastic bags then to the carton / as customized
Payment	T/T, Paypal, Western Union,Payoneer
MOQ	5000 PCS
Shipping Method	SEA,AIR,DHL,UPS,FEDEX,TNT, etc.
Delivery Time	7 days for prototype tooling & samples, 14 days for production mold, 14-28 days for MOQ

Wholesale One Way Valve High Quality Duckbill Check Valves Rubber Duckbill Valve

• Material: Made with strict materials for heavy, durable, and high-quality products


• Surface Treatment: Smooth surface that is fade and peel-resistant, ensuring durability and aesthetics


• Excellent Performance: Utilizes advanced technology and fine workmanship for superior quality and variety


• Complete Specifications: Customizable with reliable quality and a wide range of specifications


• Support Customization: Offers safe and reliable quality with multiple sizes and specifications, supporting customized drawings and samples

Custom rubber molding for valve seals using various rubber materials to meet specific environmental and application needs, including silicone valves and rubber-to-plastic bonded valves. Design assistance is available to enhance manufacturability, reduce component count, and simplify assembly. The company, Zhongshan Melon Rubber & Plastic Products Co., Ltd., specializes in manufacturing rubber valves for pipes, air compressors, one-way flow control valves, and one-way valve replacements. Rubber sleeve materials include Natural, EPDM, Silicone, Neoprene, Nitrile, and other elastomer rubbers.

Product Names	Custom Rubber Valve Seal
Material	NR, NBR, HNBR, SBR, EPDM, FKM, SIL, etc.
Hardness	30~90 shores A.
Work Temperature	-40 degree to 250 degree
Size and color	custom
Packing	PE bag & carton box or as the customer's requirement.
Feature	Wear-resistant,Impact-resistant,Heat-resistant,Cold-resistant,UV-resistant,Oil-resistant,Corrosion-resistant,Anti-Slip,longterm lifespan.
Applications	Used in faucets, toilets, fitting, pipes, showers and other industry accessories and auto parts.

Detailed Photos

Welcome to Zhongshan Melon Rubber & Plastic Products Co., Ltd.

With over a decade of expertise, we specialize in crafting precision rubber and silicone products. Our range includes rubber gaskets, grommets, bushings, diaphragms, section cups, one-way check sealing valves, stoppers, plugs, caps, silicone parts, and custom-made seal rings.

Company Name: Zhongshan Melon Rubber & Plastic Products Co., Ltd.

Product Description:

Whether you have a technical drawing or just a sample, Zhongshan Melon Rubber & Plastic Products Co., Ltd. can reverse engineer your product with precision. Our expertise lies in producing a wide range of rubber shapes, from simple to highly complex, ensuring that each molded rubber product meets your exact specifications and functions flawlessly in your application. Trust us to deliver consistent quality and reliability for all your rubber product needs.

FAQ: 

Product Name: Customized Liquid Silicone Rubber Umbrella Valves/One Way Check Valves

Company Name: Zhongshan Melon Rubber & Plastic Products Co., Ltd.

Description: We are a trading and manufacturing company specializing in the production of Liquid Silicone Rubber Umbrella Valves/One Way Check Valves. Contact us to request free samples. Custom designs may incur a sample charge, which is refundable for orders meeting a certain quantity. Our payment terms include 7 days for prototype tooling & samples, 14 days for production mold, and 14-28 days for MOQ. Choose us for our professional team, rich experience, high precision equipment, and strict quality control. Inquire now to get started!