Stainless steel low resistance backflow preventer

Backflow preventer is mainly used to prevent the medium in the pipeline from backflow due to pressure inversion, applicable to water, air and non-corrosive liquids, widely used in municipal water supply, building water supply and drainage, fire-fighting and industrial circulation system. Working temperature is generally 0 ℃ to 80 ℃, special materials can withstand higher temperatures. It is suitable for normal pressure to low and medium pressure working conditions. The main function is to realize double protection through the internal non-return and pressure relief structure to prevent backflow of contaminated media. Commonly used materials include copper alloy, stainless steel and ductile iron, compact structure, easy maintenance, to protect the system water quality safety and operational stability.

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products

Stainless steel low resistance backflow preventer

Model: DH41X

Subtitle：Anti-corrosion backflow preventer

The Stainless Steel Low Pressure Check Valve is designed to prevent backflow and ensure unidirectional flow in low pressure systems. It is made of high-quality stainless steel and is suitable for a variety of applications, including water treatment, HVAC, chemical processing and industrial fluid systems. With its low resistance design, this check valve minimizes pressure loss and optimizes flow...

Tags:Stainless Steel Check Valve

Classification:backflow preventer

Working conditions:waterwork, water treatment plant

Products	The Stainless Steel Low Pressure Check Valve is designed to prevent backflow and ensure unidirectional flow in low pressure systems. It is made of high-quality stainless steel and is suitable for a variety of applications, including water treatment, HVAC, chemical processing and industrial fluid systems. With its low resistance design, this check valve minimizes pressure loss, optimizes flow efficiency and reduces energy consumption. The valve features flanged connections for easy installation and secure attachment to piping for large systems ranging in size from 2" to 24".

Main characteristics	CORROSIVE RESISTANT STAINLESS STEEL CONSTRUCTION: The valve is made of high grade stainless steel (304/316), which is resistant to corrosion, rust, and scaling, ensuring reliable performance even in harsh environments. Low resistance design: Low pressure drop characteristics ensure smooth and efficient fluid flow, minimizing energy loss and optimizing system performance. Flange Connection: Equipped with a flange connection, this valve can be easily integrated into large piping systems, providing a safe and reliable installation for piping from 2 to 24 inches. Backflow Prevention: Effectively prevents backflow, protecting your system from contamination and potential damage. Low-pressure operation: The valve is designed for low-pressure applications to ensure reliable operation without risk of system overload. Low Maintenance: The valve's durable construction and high-quality sealing materials reduce wear and tear, resulting in less frequent maintenance and longer service life.

Product Advantages	Low resistance flow: minimizes pressure loss, reduces energy consumption and optimizes system efficiency - critical for large systems where pressure maintenance is important. Corrosion-resistant design: Stainless steel construction ensures long life and reliability even in harsh environments or corrosive fluids. Effective backflow prevention: Ensures backflow prevention, protecting the system from contamination, damage and inefficiency. Flanged connections for easy installation: Flanged connections simplify the installation of large piping systems and ensure safe, leak-free operation. Durable and Low Maintenance: The valve is designed to minimize wear and tear and has low maintenance costs, which reduces downtime and operating costs.

Medium of use

Water/hot water, Sewage/wastewater

working condition

waterwork, water treatment plant

summarize

The Stainless Steel Low Pressure Check Valve (DN50-DN600) with flanged connections is the ideal solution for ensuring reliable backflow prevention in large low pressure systems. Whether in water treatment, HVAC, chemical processing or other industrial applications, this valve provides optimal performance and minimizes pressure loss. Its corrosion-resistant stainless steel construction, effective backflow prevention, and low-maintenance design make it a durable and cost-effective choice for your piping system. Available in sizes ranging from DN50 to DN600 and versatile enough to handle a wide range of flows, this valve is a reliable solution for both small and large systems.

Product Parameters

Nominal diameter	2 to 24 inch
Nominal pressure	Up to 150 psi
Valve Material	Stainless Steel (304/316)
connection method	Flanged
Applicable temperature	-10°C to 85°C
direction of flow	Unidirectional flow (backflow prevention)
sealing material	EPDM, Nitrile, Fluoroelastomer (depending on application)
Spring Type	Stainless steel springs