Brass Horizontal Check Valve Threaded Connection DN15 to DN100 for Backflow Prevention

These brass check valves provide reliable one-way flow control in pipe systems, preventing backflow that can damage pumps, cause contamination, or lead to system inefficiency. Made from solid brass with a threaded connection, they are straightforward to install and suit water, oil, and gas applications. The range covers sizes from 4 points (DN15) up to 4 inches (DN100), including both horizontal and vertical check valve options, so you can select the right fit for your pipe layout. Each valve is built without moving springs or complex internal parts, reducing the likelihood of mechanical failure over time.

Features and Construction

These check valves are designed for practical, long-term use in residential, commercial, and light industrial settings. The brass body provides good corrosion resistance and mechanical strength, while the threaded ends allow easy integration into new or existing pipework. Available in a wide range of diameters, they accommodate systems of different scales.

Material and Build

The valve body is made entirely from brass, a material known for its durability and natural resistance to rust. Brass also handles a range of fluids including hot and cold water, oil, and non-corrosive gases, without degrading. The internal seating mechanism opens under forward flow pressure and closes automatically when flow stops, preventing backflow without manual intervention.

Size and Practical Fit

Sizes are offered from 4 points (DN15) through to 4 inches (DN100), with both horizontal and vertical configurations available. Each size uses standard BSP threaded connections, making it compatible with common pipe fittings. The 4-point and 6-point sizes suit smaller domestic installations, while the 1-inch to 4-inch sizes serve larger commercial or industrial systems.

Uses and Placement

These valves regulate flow direction in multiple fluid and gas systems. Their threaded design makes them adaptable to a variety of installation environments, from household plumbing to machine tool circuits.

Plumbing and Water Systems

In domestic and commercial water supply, the valve stops reverse flow that could contaminate the mains or cause pressure spikes. It is commonly used after pumps, meters, and in heating loops where backflow could damage components or reduce system efficiency.

Industrial and Oil Systems

The brass construction also permits use in oil and gas lines where mild corrosive resistance and dependable sealing are needed. The valve’s simple internal design handles particulate-laden fluids better than spring-loaded counterparts, though the specific fluid compatibility should be verified for your application.

Benefits and Buying Value

Choosing a brass check valve brings advantages in reliability, installation ease, and lifespan. The absence of springs or elastomers reduces potential failure points, and the multiple size options mean you can stock one product line for different pipe diameters.

Reuse and Low Maintenance

Brass valves require minimal maintenance. The internal seal and seat are durable under normal operating conditions, and the valve body can be disassembled for cleaning if necessary. This makes them suitable for repeated use in systems that undergo regular maintenance cycles.

Why Choose This Product

The broad size range, brass construction, and simple threading make this check valve a practical solution for installers and maintenance teams. With both horizontal and vertical variants, you can match the valve to your pipe geometry without adapting your layout. The product offers dependable backflow prevention across multiple system types, backed by a straightforward specification sheet.