S&W Non Return Valve
The S&W Non-Return Valve (NRV) is a robust, precision-engineered valve designed to allow fluid to flow in one direction only, effectively preventing reverse flow that can damage equipment or disrupt operations. Suitable for use in industrial, commercial, and utility systems, it is available in various designs—swing, lift, ball, piston, dual plate, and silent types—to meet specific application requirements.
S&W Non-Return Valve
The S&W Non-Return Valve is a high-performance check valve engineered to ensure one-way fluid flow, preventing reverse flow and protecting critical equipment in industrial systems. Designed for strength, efficiency, and reliability, it is suitable for heavy-duty applications across industries such as oil and gas, power generation, desalination, marine, and petrochemical processing.
Available in sizes ranging from 10 inches to 120 inches, the S&W Non-Return Valve offers a broad operational scope, fitting both medium and large-scale pipeline systems. It is built to handle demanding pressure conditions with class ratings from 125# up to 2500#, making it ideal for low, medium, and high-pressure environments.
End connection options include buttwelding and flanged types, offering versatility for various installation requirements. The valve adheres to major international standards including API, AWWA, ASME, EN, and MSS, ensuring compliance with global safety and performance benchmarks.
This non-return valve incorporates metal seating, providing robust sealing and exceptional durability even in high-temperature or high-pressure services. The metal seat design enhances resistance to wear, erosion, and corrosion, delivering long-lasting performance with minimal maintenance needs.
Constructed from a selection of premium materials such as alloy steel, titanium, Hastelloy, Inconel, 254 SMO, duplex stainless steel, Monel, nickel-aluminum bronze, and stainless steel, the S&W Non-Return Valve is tailored for durability in harsh environments. These high-grade materials provide superior corrosion resistance, mechanical strength, and reliability, ensuring the valve maintains peak performance over its service life.
The valve’s precision-engineered flow path minimizes pressure drop while maximizing flow efficiency, making it an energy-efficient solution for fluid systems. Its rugged construction and tight sealing design protect pumps, compressors, and other equipment from potential damage caused by reverse flow, reducing downtime and operational costs.
Key Features
Wide size range from 10″–120″
Pressure class ratings from 125# to 2500#
End types: Buttwelding and flanged
Compliant with API, AWWA, ASME, EN, and MSS codes
Metal seat for durability and heat resistance
Corrosion-resistant materials including titanium, duplex, and Monel
Low maintenance and long service life
Designed for high-performance flow control