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Precision-engineered valve solutions designed to meet AWWA, ANSI, and NSF standards demanded by American water infrastructure and industrial projects.
KR VALVE (TIANJIN) Co., LTD is a company specializing in valve design and manufacturing and comprehensive technical services. Guided by our core corporate philosophy — "Quality Settles the Cornerstone, Innovation Leads Development" — we have solidified our position as a trusted partner for clients worldwide.
KR has more than 20 years of experience in producing standard and non-standard valves of various types. We supply a wide selection of over 500 valve products, including butterfly valves, gate valves, check valves, water control valves, as well as all their matching and accessory products. These products serve industries such as water treatment, dam construction, commercial buildings, energy and heating, and chemical engineering.
Beyond product excellence, we are dedicated to creating a mutually beneficial partnership with every customer. We believe that reliable service is as crucial as superior products, and we strive to continuously optimize the customer experience to achieve long-term win-win cooperation.
Today, KR VALVE's products have been exported to over 50 countries and regions in Europe, Asia, Africa, and Oceania, providing project construction and brand marketing services to thousands of customers. We look forward to collaborating with you, leveraging our expertise, comprehensive product range, and unwavering commitment to quality and service to support your success.
The U.S. water check valve industry is a critical pillar of national infrastructure, supporting everything from municipal water systems to industrial process control across all 50 states.
The United States operates over 155,000 public water systems serving approximately 330 million people. Check valves are indispensable in preventing backflow contamination in drinking water distribution networks managed by utilities from New York City to Los Angeles. EPA-mandated backflow prevention requirements have driven consistent demand for high-quality check valves compliant with AWWA C508 and NSF 61 standards.
With over 3.3 million miles of oil and gas pipelines crisscrossing the continental U.S., check valves play a vital safety role in preventing reverse flow that could cause catastrophic failures. States like Texas, North Dakota, and Oklahoma represent major demand centers where industrial-grade ductile iron and stainless steel check valves are essential for upstream and midstream operations.
American commercial real estate — from skyscrapers in Chicago to data centers in Virginia — depends on reliable check valves in HVAC hydronic systems, fire suppression networks, and domestic water supply. The U.S. Green Building Council's LEED certification program further incentivizes the use of high-efficiency, low-leakage valves in new construction and retrofit projects nationwide.
The U.S. wastewater sector processes over 34 billion gallons daily. Check valves prevent sewage backflow in treatment plants and pump stations operated by municipalities across states like California, Florida, and Texas. The EPA's Clean Water Act compliance requirements and aging infrastructure replacement programs — backed by the $55 billion Infrastructure Investment and Jobs Act — are generating significant procurement activity for durable check valves.
The U.S. agricultural sector irrigates over 58 million acres annually. States like California's Central Valley, Nebraska's Platte River Basin, and the Texas High Plains rely heavily on check valves to maintain pressure integrity in large-scale irrigation systems, preventing water hammer and backflow contamination in both surface and groundwater supply networks.
America's 6,400+ power plants — including nuclear, hydroelectric, natural gas, and renewable facilities — require check valves in cooling water systems, condensate return lines, and feedwater circuits. The ongoing energy transition, including the expansion of offshore wind in the Northeast and solar thermal plants in the Southwest, is creating new demand for corrosion-resistant and high-pressure check valve solutions.
The American valve market is undergoing significant transformation driven by infrastructure investment, digital integration, and sustainability mandates.
Our advanced production facilities combine precision engineering with rigorous quality inspection to deliver valve products that exceed international standards.
From municipal water authorities in Houston to industrial contractors in Detroit, American customers trust KR Valve for quality, reliability, and technical support.
KR Valve check valves and flow control products are engineered for the specific demands of American infrastructure environments.
NYC's massive water tunnel infrastructure — including Water Tunnel No. 3, the largest active capital construction project in city history — requires thousands of high-pressure check valves to manage flow in tunnels delivering over 1 billion gallons of water daily. Our ductile iron and stainless steel check valves are designed to withstand the pressures and flow velocities encountered in deep-shaft tunnel systems.
The Permian Basin and Eagle Ford Shale regions in Texas represent some of the world's most active hydrocarbon production zones. Our API-compatible check valves prevent reverse flow in gathering lines, compressor stations, and pump skids operating under high-pressure, high-temperature conditions with H2S exposure — critical for operational safety and regulatory compliance with Texas Railroad Commission standards.
California's $50+ billion agricultural industry depends on reliable irrigation infrastructure. Our PTFE-lined check valves and hydraulic control valves are ideal for California's drip and sprinkler irrigation systems, providing precise flow control while resisting corrosion from the state's mineral-rich groundwater. They meet California Department of Food and Agriculture requirements for backflow prevention in irrigation systems.
Florida's unique geography — with much of the state at or near sea level — creates critical needs for check valves in stormwater pump stations, tidal backflow prevention systems, and coastal flood control infrastructure. Our rubber-seated check valves and flap valves are engineered to handle the sediment-laden flows and marine-environment corrosion conditions prevalent in Florida's coastal water management systems.
Explore our valve products in action across real-world American water and industrial infrastructure projects.
From composite exhaust valves for US water mains to electric-operated gate valves for American treatment plants — explore our full product portfolio.
