旋启式止回阀, 水用止回阀

橡胶瓣止回阀是一种高效止回阀，专为水、废水和泥浆应用而设计。该阀门采用柔性橡胶瓣，确保以最小的压降实现可靠的密封，非常适合低阻力和耐受杂质至关重要的系统。该阀门由 EPDM 或 NBR 橡胶以及铸铁或不锈钢等耐用材料制成，具有耐腐蚀和耐磨性，确保在苛刻环境中的长期性能。其简单而坚固的设计便于安装和维护，使其成为市政、工业和灌溉系统的一种经济高效的解决方案。.

锻钢旋启式止回阀是一种紧凑、高性能的解决方案，专为小型管道（DN15-DN50）的逆流防止而设计。该阀门采用精密锻造结构和轻质旋启式阀瓣，确保在仪表、取样和公用工程系统中实现可靠的单向流量控制。该阀门自动操作，不适用于流量调节。.

我们的不锈钢螺纹止回阀可在紧凑的管道系统中提供自动逆流防止功能。该阀门由 AISI 304/316 不锈钢制造，具有耐腐蚀性，适用于液体和气体应用，且无需维护。.

The Hydraulically Controlled Slow Closing Check Valve is a high-performance, intelligent valve designed for large-scale water supply, power generation, and industrial systems. Developed by our company based on decades of experience and advanced technologies, this valve integrates mechanical, hydraulic, and electrical systems to provide precise flow control, water hammer prevention, and energy efficiency. Available in two control system types—Standard Hydraulic Accumulator and Locking Hydraulic Accumulator—this valve is widely used in water treatment plants, power stations, steel mills, and chemical plants. It combines the functions of a check valve and a gate valve, offering reliable sealing, low flow resistance, and intelligent...

The Micro Resistance Slow Closing Check Valve is an energy‑saving check valve specifically designed for pump discharge applications, featuring a slow‑closing function. It combines the low flow resistance characteristics of a swing check valve with a hydraulic damping device. During forward flow, the disc opens to a large angle with minimal resistance; when the pump stops or backflow occurs, the disc first closes rapidly for most of its travel, then closes slowly for the remaining travel, thereby greatly reducing water hammer pressure peaks and protecting the pump and pipeline system.

The Large Diameter Check Valve is a high-performance, butterfly-style non-return valve designed for large-scale piping systems requiring reliable flow control and water hammer prevention. Suitable for water supply, wastewater treatment, power generation, and industrial processes, this valve prevents reverse flow and protects pipelines and equipment from damage caused by backflow or pressure surges. Available in sizes ranging from DN300 to DN2600 (12" to 104"), this valve is constructed from durable materials such as ductile iron, carbon steel, or stainless steel, ensuring long-term performance in demanding environments. Its butterfly disc design minimizes pressure drop and provides efficient, low-maintenance operation.

The Double Check Valve Backflow Preventer (DCVBP) is a critical safety device designed to protect potable water systems from contamination caused by reverse flow. Featuring two independent check valves and an optional intermediate pressure relief chamber, this valve ensures fail-safe operation in water supply, fire protection, and industrial applications. Constructed from bronze, stainless steel (304/316L), or ductile iron, the DCVBP complies with international standards (ASSE 1015, EN 1717) and is ideal for preventing backflow in systems where cross-connection risks exist.

The Copper Thread Check Valve is a reliable and hygienic solution for preventing reverse flow in potable water and HVAC systems. Its lead-free copper construction, threaded design, and compliance with international standards make it ideal for residential, commercial, and medical applications. By combining durability with low resistance flow, this valve ensures system efficiency and long-term safety.

The Stainless Steel Backflow Preventer is a high-performance valve designed to protect your water supply system from contamination caused by the reverse flow of water. With its corrosion-resistant stainless steel construction, this backflow preventer is perfect for use in both residential and industrial environments where water purity is critical. It offers superior reliability, ease of maintenance, and long-term durability, ensuring a safe and efficient water distribution system.

The Threaded Low Resistance Backflow Preventer is a high-efficiency device designed to protect potable water systems from backflow contamination while minimizing pressure loss. Featuring threaded connections (NPT) and a low-resistance design, this preventer is ideal for residential, commercial, and light industrial applications where maintaining water pressure and flow efficiency is critical. Constructed from lead-free materials and compliant with NSF/ANSI 372 and ASSE 1015 standards, this backflow preventer ensures safe and reliable operation in potable water systems. Its compact design and threaded connections make it easy to install in tight spaces, while its optimized internal geometry reduces energy consumption by minimizing...

The Stainless Steel Low Pressure Check Valve is designed to prevent backflow and ensure one-way flow in low-pressure systems. Made from high-quality stainless steel, it is ideal for a wide range of applications, including water treatment, HVAC, chemical processing, and industrial fluid systems. With its low-resistance design, this check valve minimizes pressure loss, optimizing flow efficiency and reducing energy consumption.

The Stainless Steel Threaded Low Resistance Backflow Preventer is a compact, high-efficiency device designed to prevent reverse flow and protect water systems from contamination while minimizing pressure drop. Constructed from 304 or 316L stainless steel, this valve features threaded connections (NPT or BSP) for easy installation in tight spaces, making it ideal for potable water, HVAC, and industrial applications.