Premium Food Vacuum Sealing Cross Slit 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 various applications. These valves are commonly used in automotive fuel tanks, pumps, breathing masks, medical devices, home appliances, cars, and toys.

Umbrella valves are elastomeric components with a diaphragm or umbrella shape, serving as effective sealing elements in backflow prevention devices, vent valves, pressure relief valves, and metering valves.

Product advantages:

Product Description

Zhongshan Melon Rubber & Plastic Products Co., Ltd.

Product Description:

Our silicone 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 suitable for various applications. Installation is easy, and the valve offers the following benefits:

• Enhanced sealing


• Position independence


• Variable opening pressure through seat thickness


• Corrosion, chemical, wear, and aging resistance

Choose Zhongshan Melon Rubber & Plastic Products Co., Ltd. for reliable silicone rubber umbrella valves that meet your high-quality standards.

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

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

• Strict material selection for heavy, durable, and high-quality products


• Smooth surface treatment for long-lasting beauty and durability


• Advanced technology and fine workmanship for excellent performance


• Customizable specifications with reliable quality


• Support for customization with multiple sizes and specifications

Custom rubber molding available for valve seals using various rubber materials such as silicone, EPDM, Neoprene, and more. Design assistance provided to enhance manufacturability and simplify assembly. Specializing in rubber valves for pipes, air compressors, one-way flow control, and replacements.

Material: Natural/EPDM/Silicone/Neoprene/Nitrile or other elastomer rubber.

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 rings, silicone rings, and a wide range of industrial rubber products. Our offerings include 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 creating a wide range of rubber shapes, from simple to highly complex, ensuring that each molded rubber product meets your exact specifications. Count on us to deliver products that function flawlessly within your application, providing you with reliable solutions every time.

FAQ: 

Customized Liquid Silicone Rubber Umbrella Valves/One Way Check Valves

Are you looking for high-quality umbrella valves or one-way check valves? Look no further than Zhongshan Melon Rubber & Plastic Products Co., Ltd. We are a trading and manufacturing company with specialized factories and departments dedicated to producing these valves.

When you choose us, you can expect free samples to ensure the quality meets your standards. For custom designs, there may be a sample charge, but it is refundable with a certain order quantity.

Our payment terms are flexible, with 7 days for prototype tooling & samples, 14 days for production mold, and 14-28 days for minimum order quantities.

Why choose us? We have a professional team with extensive experience and high-precision equipment to guarantee top-notch product quality. Our scientific management and strict cost control ensure the best competitive prices in the market.

Don't hesitate to inquire and get started with our Customized Liquid Silicone Rubber Umbrella Valves/One Way Check Valves today!