Check Valve
- Fuzhou, China
Rubber & Plastic Valve Manufacturer
Duckbill Valve, Umbrella Valve, Spring Valve, Diaphragm Valve, Plastic Valve, Silicone Valve, Hemostasis Valve, Dual Valve, Silence Valve, Vacuum Check Valve, Cross Slit Valve etc .
Company Tour
- ① R & D Department — 5 Engineers； ② Mould Department — 11 Engineers
- ③ Quality Department — 6 Engineers；④ Sales Department — 8 Sales Engineers
- ⑤ Production Department — 40 Workers; ⑥ 10,000 & 100,000 Cleanroom Workshop
- ⑦ Rubbervalve Labratoray
- Respond time ≤24hours! Online meeting with engineer or sales for valve selection!
Welcome To Rubbervalve
Best Valve supplier That You Can Trust
- Over hundreds of types for selection of Valve!
- Bio-compatible, Food Grade, Rohs, Reach, Pahs Certifications for Material.
- Material Selection of Chemical, Oil, Medicine, Acid, Alkaline, Ozone, Gas Resistent.
- Air & Liquid flow test data. Aging, lifetime, chemical resistent test data by Rubbervalve’s Lab.
- With designers, engineers, mould workshop to provide OEM & ODM service.
- 100% Production Inspection, 0 complains with millions of valve using.
Existing products (such as duckbill valves, umbrella valves, silicone valves, valve components, diaphragms, etc.) and services are mainly used in the automotive, medical, small engine, electrical water treatment, food and packaging industries.
Our Products
Quality Guarantee by 100% inspection
Duckbill Valve, Umbrella Valve, Spring Valve, Diaphragm Valve, Plastic Valve, Silicone Valve.
Please Click Photos to Know More
Real Project Solutions
Duckbill Valves
For robotic vacuum cleaners equipped with an automatic self-cleaning function, excessive pressure can build up within the base station’s water tank when it is filled to capacity, preventing the discharge of surplus water and thereby creating a risk of hose or tank rupture. Furthermore, if the machine is inverted, gravity could cause water to leak out through the overflow port.
Our manufactured duckbill anti-overflow valves effectively resolve this issue for robotic vacuum manufacturers. These overflow valves facilitate the discharge of water through the overflow port when the tank is full, while simultaneously preventing water leakage from the port when the machine is inverted. Constructed from elastomeric materials and precision-molded, these duckbill check valves allow fluid to flow freely under positive pressure differentials while effectively blocking backflow under negative pressure differentials; they are widely utilized throughout the home appliance industry.
Three Way Check Valve Reducer
Solutions are required to address specific challenges faced by home appliance manufacturers—specifically: when the outlet of an electric or gas boiler becomes clogged by limescale, causing internal pressure to rise to a critical level and risk pipe rupture; or when excessive pressure within a dishwasher’s water pump and mixing lines causes water from the clean water tank to backflow into the detergent reservoir.
Our patented product—the Customizable Modular Three Way Check Valve Reducer—offers our clients a perfect solution to these issues. This three way check valve reducer features an integrated pressure relief mechanism that activates when internal boiler pressure reaches a predetermined threshold, venting the excess pressure to prevent pipe rupture. Furthermore, in instances of excessive pressure within the pump and mixing lines, the valve redirects the fluid flow through a relief port back into the piping system connecting the water tank and pump, thereby preventing backflow from the clean water tank into the detergent reservoir. While capable of withstanding high temperatures of up to 120°C, this valve also offers flexible customization options regarding interface dimensions and pressure relief settings. The unique three-port design effectively eliminates the need for multiple home appliances to utilize two separate single valves simultaneously, thereby conserving internal installation space.
Anti-siphon Check Valve
During intravenous infusion, the medication bag and the electric pump are often positioned higher than the patient’s infusion site. In situations such as an insecurely mounted fluid reservoir or a failure to close the flow-stop clamp during a fluid change, these specialized anti-siphon check valve effectively prevent the liquid situated above the valve body from flowing downward naturally due to gravity. The opening pressure range of these pressure activated valves can be customized; furthermore, the product has successfully passed rigorous testing—including a 3-year simulated aging test (verifying that the valve core does not stick) and comprehensive functional assessments—meeting all recommended product specifications. Having undergone extensive use and validation by numerous clients, the product has garnered widespread acclaim; its current annual production volume approaches one million units.
Check Valve for Hemodialysis
In hemodialysis machines, the medication delivery tubing requires a mechanism to ensure that fluid does not flow backward. Consequently, a one-way valve must be integrated into the tubing system to facilitate unidirectional flow and prevent backflow. Check valves designed for hemodialysis primarily utilize screw-in or adhesive-bonded configurations. We currently collaborate with numerous domestic and international clients, ensuring the high-quality performance of our products. At present, the combined annual volume of these two specific medical valve models approaches the ten-million mark.
Lubricant Tank for Lithium-Powered Chainsaws
A client approached us at Rubber Valve seeking a custom-designed lubricant tank for a lithium-powered chainsaw. The client stipulated that the tank must guarantee absolute leak-tightness and safety, while its surface finish had to be free of burrs and black spots. Furthermore, the installation of the tank’s custom-shaped rubber tubing had to be spatially optimized, and the tubing itself was required to be highly resistant to both oil and bursting.
Ultimately, we manufactured the tank using PA6 material, thereby ensuring both leak-tightness and safety—qualities subsequently validated through relevant testing. For the oil tubing, we utilized NBR material; our design ensured a compact and uncluttered installation footprint while successfully meeting the client’s specific requirements for oil and burst resistance, thereby guaranteeing a smooth flow of lubricant. Additionally, we incorporated a duckbill valve to serve as the tank’s air intake valve; this component was engineered to prevent sticking due to aging and to ensure zero oil leakage during inverted vibration testing.
Custom-Shaped Hoses
For battery-powered chainsaws, the oil hose must be designed to ensure smooth, obstruction-free operation while simultaneously guaranteeing a consistent flow of oil and overall safety. The client requested a custom-shaped oil tank hose capable of withstanding specific conditions regarding oil exposure and internal burst pressure. After conducting comparative production trials using various materials—including NBR, EPDM, and FKM—we successfully met the client’s specified standards and passed all requisite inspections. Our custom-shaped oil tank hoses can be tailored precisely to fit the internal spatial layout of specific chainsaw models. Furthermore, we offer customization options across a range of materials to satisfy diverse environmental requirements—such as varying levels of oil resistance, burst pressure tolerance, and low-temperature performance.
Why Choose Us
OEM & ODM project
Our service includes design, research & innovation, mould process, lab test, mass production and quality control etc.
Product Design
1. Professional designer for ODM work with 20 years' experience.
2. Review with customers together to meet market's request.
Mould & Product Process
1. CNC, Sodick EMD Machine, CMM of Serein to gurantee mould size.
2. Mould review with customer's engineer together to make sure details.
Labratory & Quality Control
1. Quality control by ISO9001 standards with first article inspection, patrol inspection every 2 hours, OQC, IQC, PPAP standards etc.
2. Lab test includes air/water flow, aging, chemical/UV/high & low tempreture resistent, vibration, tensile, etc.
Mass Production
1. 100% test for every product.
2. Automatic assembling and testing is widely used.
What Client Says
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Contact Information
+86 183 5916 3977
70# Rujiang Road, Mawei District, Fuzhou, China
Our Factory
Witness Our Strength
Rubbervalve is a leading check valve supplier with a focus on quality and innovation. Our facility maintains stringent quality control through 100% inspection and testing. Our valves are made of high-quality, biocompatible materials that have been Food Grade, RoHS, and REACH certified. We also provide OEM and ODM services for custom solutions. Contact us today!
Certificates
Our Honors And Qualifications
Rubbervalve is a trusted Check Valve Supplier with multiple certifications, including Food Grade, RoHS, REACH, and PAHs. These certifications ensure that our valves meet stringent safety and quality requirements for a variety of applications, including chemicals, oil, and pharmaceuticals. ISO 9001 principles reinforce our commitment to quality, ensuring that our customers receive reliable products.
Patents
Patents
Patents
ISO9001: 2015
Cooperative Partners
Lastest News & Knowledge
Videos of test, production, mould, materials, news are published. If you need more data or knowledge please click button below.
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