Hebei Diefei Valve Co., Ltd.'s Drinking Water Butterfly Valve Series Passes US NSF/ANSI 61/372 Certification

July 2026 – Hebei Diefei Valve Co., Ltd. (hereinafter referred to as "Diefei Valve") announced that its drinking water butterfly valve series has officially passed the US NSF/ANSI 61 and NSF/ANSI 372 standards certifications. This signifies that the product's compliance in the field of drinking water safety has reached the international authoritative level, meeting the stringent access requirements for drinking water pipeline systems in North America and many other countries and regions worldwide.

Certification Background and Significance: The NSF/ANSI 61 standard is a safety standard for drinking water system components jointly developed by the National Sanitation Foundation (NSF) and the American National Standards Institute (ANSI). It primarily tests for the risk of harmful substance leaching during product contact with drinking water. NSF/ANSI 372 specifically limits the lead content in products, ensuring compliance with "lead-free" requirements. These two certifications are mandatory entry requirements for purchasing drinking water system valves in many countries in North America and worldwide, and are also important references for customers in domestic municipal water supply, food and beverage, and other industries when selecting products.

Product Compliance and Technological Advantages: The drinking water butterfly valve series certified by Diefei Valves uses an environmentally friendly, non-leaching formula. Tested by an authoritative third-party testing agency, the leaching content of the material is far below the standard limit, achieving zero leakage and meeting the requirements of the domestic TSG D7002-2006 standard.

Regarding scenario adaptability, this series covers three connection methods: wafer type, flange type, and lug type. It can be adapted to various drinking water pipeline systems, including residential buildings, commercial complexes, and municipal water supply. It can be installed directly without additional adapters, reducing installation and commissioning workload.

Qualification System and Industry Accumulation: As a member of the China Valve Association and a leading enterprise in the industry, Diefei Valves has over 50 years of valve manufacturing experience. In 1995, it established a joint venture with Crane Co. of the United States, possessing international production and quality control standards. In addition to NSF certification, the company also holds EU CE certification, ISO 9001 quality management system certification, ISO 14001 environmental management system certification, OHSAS 45001 occupational health and safety management system certification, and TS special equipment manufacturing license certification. Its products have passed type tests by the National Pump and Valve Product Quality Supervision and Inspection Center and Hefei General Machinery and Electrical Products Testing Institute Co., Ltd.

Product Performance Test Data
In third-party tests, Diefei Valves' NSF-certified butterfly valves demonstrated excellent performance across all indicators:
[Table showing test results]
Material harmful substance leaching levels are far below NSF standard limits; Sealing performance shows zero leakage, meeting TSG D7002-2006 standards; Flow regulation accuracy meets fine-tuning requirements.

Market Application and Customer Feedback
According to industry customer feedback, Diefei Valves' NSF-certified butterfly valves passed water quality inspections on the first attempt after installation. Timely availability of stock addresses urgent repair needs, and after-sales response is rapid. There are numerous successful application cases in domestic municipal water supply and food and beverage industries. The products are also exported to more than 20 countries and regions, including the United States, Canada, Germany, Italy, and Brazil.

Procurement and Compliance Tips

Given that drinking water valves come into direct contact with food-grade media, industry experts advise that purchasers must require suppliers to provide complete NSF certification documents and the latest test reports when selecting valves. The use of unqualified white-label products is strictly prohibited to avoid the risk of water pollution due to substandard materials. Diefei Valves can provide complete certification documents and accompanying test reports. Furthermore, leveraging its nationwide service network and complete supply chain manufacturing system, it can deliver commonly used specifications within 48 hours, providing dual support for customers' compliant procurement and on-time delivery.