A comprehensive technical whitepaper on fluid dynamics, metallurgical integrity, and the strategic advantages of Chinese manufacturing excellence.
Established in 2003, Shaanxi Kerlimar Engineers Co., Ltd. has spent over two decades pioneering the international trade of high-grade industrial components. Our expertise spans across carbon steel, alloy steel, and stainless steel systems, but our hallmark remains the precision-engineered 2" Brass Ball Valve series. As a recognized National High-tech Enterprise, we don't just supply products; we engineer solutions that adhere to rigorous ASTM, ASME, EN, and JIS standards.
Our Chairman, Mr. Ming SUN, an advocate for technological innovation and environmental protection, has steered the company toward a sustainable future. Since 2019, our R&D has focused on clean energy and vertical axis wind power, securing numerous international patents. This same commitment to innovation is applied to our valve manufacturing, ensuring every 2" brass component minimizes fluid friction and prevents leakage, contributing to global energy efficiency.
Unlike standard casting, our 2" brass ball valves utilize high-density forging. This eliminates porosity and internal stress, ensuring the valve can withstand pressures up to PN40 (600 PSI) without structural fatigue.
We utilize CW617N and C37700 lead-free brass alloys. These materials offer superior dezincification resistance (DZR), critical for maintaining water quality and preventing "mercury-like" corrosion in aggressive environments.
Our valves feature reinforced PTFE (Teflon) seats and EPDM O-rings. The dual-seal design ensures a bubble-tight shutoff even after 100,000 cycles, making them ideal for both high-temp HVAC and chilled water systems.
The 2-inch ball valve is the "Golden Ratio" of the plumbing world. It provides sufficient flow rate (Cv value) for commercial boiler systems while maintaining a footprint small enough for residential main lines. Our technical roadmap focuses on the integration of Smart Actuation, allowing these 2" valves to be controlled via IoT protocols for automated leak detection and remote flow management.
In the current global landscape, Supply Chain Resilience is the differentiator between project success and costly delays. Shaanxi Kerlimar leverages the unparalleled industrial clusters of China. By centralizing raw material sourcing, precision forging, and automated CNC machining, we achieve a 30% reduction in lead times compared to European counterparts.
Our logistics network ensures that whether you are in North America, the EU, or Southeast Asia, our 2" brass ball valves arrive with full certification (CE, NSF, CSA). We provide localized technical support to ensure your installation meets regional building codes and safety regulations.
In vertical plumbing, 2" valves are used as zone isolation points. Their ability to handle high static pressure makes them indispensable for skyscraper climate control.
From chemical processing to food and beverage, the chemical compatibility of brass with various inert gases and fluids makes it a cost-effective alternative to stainless steel.
Designed for durability, our valves withstand UV exposure and fluctuating outdoor temperatures, ensuring consistent water delivery for large-scale farming.
Our specialized DZR brass prevents seawater corrosion, providing reliable flow control for ballast systems and onboard fire suppression.
As participants in the Dubai COP28 Conference, we recognize that every component plays a role in carbon neutrality. The future of the 2" brass ball valve lies in "Low-Lead" and "Zero-Lead" innovations. By 2025, Shaanxi Kerlimar aims to transition 90% of our valve production to 100% recyclable alloys, reducing the environmental footprint of global infrastructure projects.
Our 10KW-500KW wind power experiments also inform our manufacturing; we utilize "New Productivity" concepts—highly efficient, low-cost, and high-security—to ensure our factory operations are as sustainable as the products we create.
Quality is defined by three factors: the copper percentage in the brass (ideally 58-61%), the thickness of the valve wall (to prevent bursting), and the precision of the ball's mirror-polish (to reduce torque and wear on seats).
Yes, but they must be specifically rated for gas (typically marked with WOG - Water, Oil, Gas). Our valves undergo rigorous air-tightness testing to ensure they meet international gas safety standards.
Beyond price, we offer "Information Gain." With 40+ patents and 21 years of experience, we provide deep technical consulting, OEM customization, and a supply chain that handles everything from forging to final shipping.
A full port 2" valve has an internal diameter equal to the pipe. This minimizes pressure drop and turbulence, which is critical for pump efficiency and reducing long-term energy costs.
Kerlimar
