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.

双止回阀防回流装置（DCVBP）是一种关键安全设备，旨在防止因逆流导致的饮用水系统污染。该阀门配备两个独立止回阀及可选的中压泄压腔，可在供水、消防及工业应用中实现故障安全运行。DCVBP采用青铜、不锈钢（304/316L）或球墨铸铁制造，符合国际标准（ASSE 1015、EN 1717），适用于存在交叉连接风险的系统中防止回流。.

铜制螺纹止回阀是一种可靠且卫生的解决方案，用于防止饮用水及暖通空调系统中的逆流。其无铅铜结构、螺纹设计及符合国际标准的特点，使其适用于住宅、商业及医疗应用。该阀门兼具耐久性与低阻力流动特性，确保系统效率与长期安全性。.

不锈钢防回流阀是一款高性能阀门，旨在防止因水流倒灌造成的水源污染，保护供水系统。凭借其耐腐蚀的不锈钢结构，该防回流阀特别适用于对水质纯度要求严格的住宅及工业环境。它具有卓越的可靠性、易于维护以及长期耐用性，确保供水系统安全高效运行。.

螺纹低阻力防回流装置是一种高效设备，旨在防止饮用水系统受到回流污染，同时最大限度减少压力损失。该装置采用螺纹连接（NPT）及低阻力设计，适用于对水压及流量效率有严格要求的住宅、商业及轻工业应用。其采用无铅材料制造，符合NSF/ANSI 372及ASSE 1015标准，确保在饮用水系统中安全可靠运行。紧凑的设计与螺纹连接使其易于安装在狭小空间内，而优化的内部几何结构通过减少……来降低能耗。.

不锈钢低压止回阀专为低压系统设计，用于防止回流并确保单向流动。该阀门采用优质不锈钢制造，广泛应用于水处理、暖通空调、化工处理及工业流体系统。其低阻力设计可最大限度减少压力损失，优化流动效率并降低能耗。.

不锈钢螺纹式低阻力防回流阀是一款紧凑型高效装置，旨在防止倒流并保护水系统免受污染，同时将压降降至最低。该阀门采用304或316L不锈钢制造，配备螺纹连接（NPT或BSP），便于在狭小空间内安装，特别适用于饮用水、暖通空调及工业应用领域。.