Your Trusted Partner for OEM & ODM Check Valves

Reliable Check Valves Manufacturer from China

Plumberstar provides high-quality check valves for many industries, effectively preventing backflow and ensuring the smooth operation of various fluid control systems. Spring check valves and flapper check valves are our main products.

Our spring check valves are designed with high-strength stainless steel springs and precision valve cores, with the characteristics of rapid opening and closing, flexible installation direction, compact structure, etc., suitable for vertical or horizontal pipeline installation; flapper check valves adopt low-resistance swing structure, support large flow through, suitable for stable water delivery occasions such as water pump outlets, with the advantages of stable opening and closing and easy maintenance. Both products are made of high-quality brass or stainless steel to ensure long-term leak-proof and corrosion-resistant performance.

Plumberstar has been focusing on check valve manufacturing for more than ten years. Our check valve has been widely used in various civil scenarios, including household water supply, water heaters, water purification equipment and HVAC systems, providing users with stable and reliable one-way fluid control solutions.

Brass Check Valves Manufacturing Types

Plumberstar offers a variety of check valves, mainly spring check valves and flapper check valves. Our manufacturing processes include plastic injection molding, metal casting, precision machining, etc., to ensure that the product still maintains excellent one-way flow-stopping performance under different pressure and fluid environments. Whether it is used in home water supply systems, heating, ventilation, and air conditioning (HVAC), or agricultural irrigation equipment, we can provide economical, corrosion-resistant, or high-strength pressure-resistant check valve solutions according to your needs, helping you to build an efficient and reliable fluid control system.

Check Valves Specifications

Size Available

Plumberstar offers standard sizes of check valves in different diameters - including 1/2", 3/4", 1", 1.5", 2"", 3"", 4"", and larger, and we can custom sizes can to upon request to fit specific system requirements.

Material Available

Our types of check valves are constructed out of brass, stainless steel, bronze, ductile iron, and high-performance plastics in order to provide the best corrosion resistance, durability, and compatibility with various fluid types.

Connection Type

Our check valves offer versatile connection options, including threaded (NPT, BSP), flange, socket weld, and wafer types, ensuring seamless integration with various piping systems for reliable flow control.

Components Available

Our check valves are constructed using high-grade components tailored to their design. For swing check valves, key components include the disc, hinge pin, and body seal, ensuring smooth operation and reliable sealing. For spring check valves, precision components such as the disc, spring, stem, and bonnet are optimized for quick response and efficient flow control.

Working Pressure & Temperature

At a steady operating pressure of PN1.6, our check valves are designed to function in different conditions. For the soft-sealed valves, the temperature is from -20°C to 120°C, with a working temperature of ≤100°C. The hard-sealed swing check valves have an allowance of up to 150°C and ensure effective performance in most industrial and household applications.

check valves specifications 01

Explore Our Check Valve Case Studies

Explore how our high-quality check valves perform in real world applications! From water treatment systems to industrial pipelines, witness how our solutions improve efficiency and reliability.

Custom Spare Parts for Check Valve – Precision & Reliability

Plumberstar provides a full range of customized spare parts for various types of check valves, covering all key components of spring check valves and flapper check valves, ensuring that customers can maintain and replace them efficiently and worry-free. The accessories we supply include: valve body, valve cover, valve core/valve disc, spring, seal ring, guide, hinge assembly, etc., all of which are precision-machined and strictly tested to ensure perfect matching with the original valve.

All spare parts can be customized in material and structure according to the size, medium characteristics, and use environment of the customer’s pipeline system, supporting a variety of materials such as copper, stainless steel, cast iron, etc. All custom components are backed by a three-year warranty. Call today to get a custom quote on your spare parts!

Custom Finishing of Check Valve – Durability & Aesthetics

Plumberstar offers a variety of custom finishes for spring check valves and flapper check valves to enhance durability and appearance in corrosive environments. Our commonly used surface treatments include epoxy coating, anti-corrosion spray, nickel/chrome plating, hot-dip galvanizing, sandblasting, pickling passivation, electrolytic polishing, etc., covering a variety of materials such as copper, stainless steel, cast iron and carbon steel.

For industrial applications, we recommend epoxy or spray coating, which effectively resists moisture, salt spray and chemical corrosion, and is widely used in water, HVAC and energy systems. Stainless steel check valves can be pickled passivated or electrolytic polished, with Ra values as low as 0.8μm, meeting high cleanliness requirements such as food and water treatment. Copper valve bodies can be mirror polished, brushed or electroplated, taking into account both decorative beauty and anti-oxidation performance.

Each surface treatment can be customized according to your actual working conditions, media type and appearance requirements, ensuring that the valve is not only stable in operation, but also durable in various environments. Plumberstar always uses reliable technology and exquisite craftsmanship to provide your system with check valve solutions that have both functional and aesthetic value.

Custom Raw Material for Check Valves – Strength & Durability

Spring check valves and flapper check valves are the two main types of valves at Plumberstar. We have various materials to choose from, like copper, stainless steel, cast iron, etc., to meet different conditions of use and performance requirements. The copper valve body is suitable for domestic potable water applications, with regard to corrosion resistance and economy; stainless steel is suitable for applications with higher water quality and temperature requirements; valve bodies of cast iron are suitable for high flow applications such as exterior or buried installation.

Plumberstar combines precision machining and casting technology, supports a variety of interface forms and OEM/ODM customization, and is committed to providing reliable, durable and cost-effective civil check valve solutions. 

Stainless Steel

Material that is frequently used in high-pressure and industrial settings, stainless steel is a robust, durable, and corrosion-resistant material. Check valves of stainless steel are commonly employed in oil and gas pipelines, chemical processing, and other hostile environments.

Brass

Brass is frequently used in manufacturing check valves due to its durability and corrosion resistance. When cost is a concern, brass check valves are commonly employed in piping systems and other applications.

Bronze

Bronze is an alloy that is resistant to corrosion and is frequently used in structure and marine applications. Bronze check valves are commonly used in seawater intake systems, marine piping systems, and other applications where corrosion resistance is critical.

Lead Free Copper

Lead-free copper is copper material that does not contain lead. These materials usually contain other alloying elements such as silicon, manganese, and aluminum to improve their performance. Lead-free copper retain the basic properties of copper, such as good conductivity, thermal conductivity, and corrosion resistance, while alloying enhances mechanical strength and processing performance.

High Grade Plastics

High Grade Plastics is a new type of material with superb physical and chemical properties and excellent durability. It is a type of material widely used in current industrial production.

Ductile iron

Ductile iron has medium to high strength, medium toughness and plasticity, high comprehensive performance, good wear resistance and vibration damping, and good casting process performance.

General Process Fabricate for Valves

Plumberstar always seriously treats every manufacturing process of check valves and has system quality control rules to ensure good quality. 

Check Valve Manufacturer FAQ

Most check valves can be installed horizontally or vertically, depending on the design. Swing check valves are more effective in horizontal pipes, but spring-loaded check valves are more versatile. Always check the manufacturer’s guidelines to ensure proper installation.

Plumberstar is an esteemed check valve supplier brand, offering a vast selection of check valve products at highly competitive rates. Browse through our catalog to select your items of interest; to place an order visit the contact page of our website or click HERE if using mobile devices to do so.

The minimum order quantity for check valves is 500 pieces per specification. This ensures cost efficiency while meeting your specific needs. If you have questions or require flexibility, feel free to contact us—we’re here to help!

Yes! We offer end-to-end customization, starting with 2D/3D design drawings and artwork packaging design, followed by material selection, structural design, and specifications like working pressure and temperature. 

Yes, our check valves are designed to effectively prevent backflow in both horizontal and vertical pipelines. For vertical installations, we recommend spring-loaded or lift check valves for reliable performance.

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