Stainless Steel Water Hammer

Our stainless steel water hammer arresters are engineered to meet the demanding standards of durability, safety, and compliance required by the North American market. The valve body is constructed from Type 316/L (UNS S31603) low-carbon stainless steel, featuring an internal mechanism with a stainless steel bladder and a nitrogen-precharged chamber. Strictly adhering to major U.S. piping and mechanical codes, this product delivers a professional solution for harsh water conditions and environments, ensuring long-term reliability.

Material & Compliance Core Advantages:

High-Specification Materials Meeting U.S. Standards: Utilizes Sanitary Grade 316L stainless steel as defined by ASTM A270. This low-carbon formulation minimizes carbide precipitation in welds and corrosion-sensitive areas, delivering exceptional resistance to intergranular corrosion. Its outstanding resistance to chloride ion corrosion enables it to easily handle hard water, softened water (corrosive to copper), and chlorine residues in municipal water supplies common in certain regions of the United States.

Authoritative Certifications and Compliance:
NSF/ANSI 61 Certification: This certification ensures all components in contact with drinking water meet stringent U.S. health impact standards, guaranteeing safety and harmlessness.
NSF/ANSI 372 Certification: Complies with the U.S. federal “Lead Free Act,” with lead content far below the weighted average limit of 0.25%, safeguarding household water safety.
ASSE 1010 Compliance: Product design, performance, and testing fully adhere to the American Society for Sanitary Engineering (ASSE) professional standards for water hammer arresters, ensuring industry-recognized shock wave absorption efficiency and durability.
Pressure Rating: Working Pressure (WPS) and Burst Pressure comply with ASME standards, meeting requirements of the International Plumbing Code (IPC) and International Mechanical Code (IMC).
Exceptional Versatility and Strength: Features standard NPT threaded connections for broad compatibility. Exceptional mechanical strength and inherent inertness make it ideal for modern plastic piping systems like PEX, CPVC, and PP-R, effectively preventing electrochemical corrosion from dissimilar metal connections. Also suitable for galvanized steel pipe systems.

Applications:
New construction and retrofit projects requiring strict compliance with U.S. piping codes (IPC/IMC).
Residential and commercial buildings with poor water quality (high hardness, high chlorine content), water softener usage, or coastal high-salinity environments.
Public facilities such as schools, hospitals, and government projects with mandatory material certification and drinking water safety requirements.
Non-metallic piping systems like PEX and CPVC, ensuring long-term durability at connection points.

This product is not merely a fitting but a system safety component certified to stringent U.S. standards. It provides professional plumbing engineers, contractors, and compliance-focused owners with a proven, reliable solution against corrosion and pressure surges.