止回阀

该止回阀采用旋启式、升降式和对夹式结构,设计简单紧凑,主要用于自动防止管道系统中介质倒流。采用球墨铸铁、铸钢和不锈钢制造,适用于输送水、油、气、污水及弱腐蚀性流体等介质。依靠介质压力自动工作,无需外部操作,有效维持单向流动,保护泵及其他设备。适用于石油、化工、水处理、暖通空调及城市给排水中的中低压工况,启闭平稳,密封性能好,流阻小,安装方便。经过严格的压力与密封测试,运行可靠,使用寿命长,为各类工业管道系统提供安全有效的防倒流保护。.

Ball check valve
Ball check valve
The Ball Check Valve is a highly efficient, non-return valve specifically designed for low-pressure systems (≤PN16/Class 150) to prevent reverse flow in water and sludge-containing media. Its robust construction and specialized features make it an ideal choice for applications where reliability, durability, and ease of maintenance are critical. The valve features a rubber-coated ball that ensures tight sealing even in abrasive or particulate-laden environments, such as wastewater treatment plants and industrial slurry systems. The flanged connection design (compliant with EN 1092-1 or ASME B16.5 standards) allows for easy installation and integration into existing pipelines, reducing downtime and labor costs. Engineered...
Silencing Check Valve
Silencing Check Valve
The Silencing Check Valve is a cost-effective non-return valve designed to prevent reverse flow and reduce water hammer in piping systems. Featuring a spring-assisted closure mechanism, this valve ensures quick sealing to minimize pressure surges, making it ideal for applications where noise reduction and budget considerations are important. Constructed from ductile iron, stainless steel, or bronze, this valve is durable and corrosion-resistant, suitable for water, steam, and oil systems. While it does not achieve zero water hammer, its spring-loaded design significantly mitigates pressure surges, offering a balance between performance and affordability.
Silent clamp check valve
Silent clamp check valve
The Silent Clamp Check Valve is a hygienic, low-noise non-return valve designed for applications requiring quiet operation and easy maintenance, such as food & beverage, pharmaceutical, and bioprocessing industries. Featuring a silent closure mechanism and tri-clamp connections, this valve minimizes water hammer noise while ensuring rapid sealing to prevent backflow. Constructed from 316L stainless steel with electropolished surfaces (Ra ≤ 0.5 μm), this valve meets strict sanitary standards and resists corrosion in CIP (Clean-in-Place) and SIP (Sterilize-in-Place) systems. Its compact design and clamp connections allow for quick installation and disinfection, making it ideal for high-purity fluid handling.
Wafer lug type check valve
Wafer lug type check valve
The Wafer Lug Type Check Valve is a highly efficient valve designed to prevent backflow in piping systems, widely used in water treatment, petrochemical, natural gas, power, and other industries. With its lug design and wafer-style body, this valve provides excellent sealing performance and easy installation, making it a preferred choice for many demanding applications. Its compact structure and reliable functionality ensure safe and stable operation in various pipeline systems.
Dual disc wafer check valve
Dual disc wafer check valve
The Dual Disc Wafer Check Valve is a compact, high-performance non-return valve designed to prevent reverse flow in piping systems where space, weight, and efficiency are critical. Featuring a dual disc design, this valve ensures rapid sealing with minimal pressure drop, making it ideal for water, steam, oil, and gas applications. Constructed from carbon steel, stainless steel, or ductile iron, this valve is durable and corrosion-resistant. Its wafer-style design allows for easy installation between flanges, reducing overall system weight and space requirements. The dual disc mechanism provides reliable sealing and reduces water hammer effects, making it a preferred choice for...
Spring loaded wafer check valve
Spring loaded wafer check valve
The Spring Loaded Wafer Check Valve is a compact, high-performance non-return valve designed to prevent reverse flow in piping systems requiring rapid closure and minimal pressure drop. Featuring a spring-assisted disc and wafer-style design, this valve ensures immediate sealing upon flow reversal, making it ideal for applications where water hammer prevention and space efficiency are critical. Constructed from stainless steel, carbon steel, or ductile iron, this valve is durable and corrosion-resistant, suitable for water, steam, oil, and gas systems. Its lightweight, flangeless design simplifies installation and reduces system weight, while the spring mechanism enhances reliability in dynamic flow conditions.
Stainless steel wafer check valve
Stainless steel wafer check valve
The Stainless Steel Wafer Check Valve is a corrosion-resistant, non-return valve designed to prevent reverse flow in demanding environments such as chemical processing, marine applications, and high-purity systems. Featuring a wafer-style design, this valve is installed between flanges, offering a compact, lightweight solution with minimal pressure drop. Constructed entirely from stainless steel (ASTM A351 CF8M/CF3M), this valve excels in handling corrosive media, high temperatures, and high-pressure conditions. Its swing disc or dual disc design ensures rapid sealing upon flow reversal, making it ideal for applications requiring reliability and durability.
High pressure wafer check valve
High pressure wafer check valve
The High Pressure Wafer Check Valve is an ultra‑short pattern check valve designed for high‑pressure pipelines. It typically features a dual‑plate (twin disc) or spring‑loaded single‑plate design, where the discs rotate around a central pin shaft to allow unidirectional flow. Compared with traditional flanged swing check valves, the wafer type offers a face‑to‑face length that is only 1/3 to 1/5 that of conventional valves, resulting in lighter weight, smaller installation space, and reduced pipeline loads.
steel swing check valve
steel swing check valve
The Steel Swing Check Valve is a standard, non-return valve designed to prevent reverse flow in a wide range of industrial and commercial applications. Featuring a swing disc design, this valve ensures reliable sealing with minimal pressure drop, making it a versatile and cost-effective solution for water, steam, gas, and oil systems. Constructed from carbon steel or stainless steel, this valve is durable, corrosion-resistant, and suitable for moderate pressure and temperature conditions. Its simple yet robust design allows for easy installation and maintenance, making it a popular choice for general-purpose flow control.
Wafer swing check valve
Wafer swing check valve
The Wafer Swing Check Valve is a compact, lightweight non-return valve designed to prevent reverse flow in piping systems where space and weight are critical considerations. Featuring a wafer-style design, this valve is installed between flanges, making it an ideal choice for applications requiring a low-profile solution without compromising performance. Constructed from carbon steel, stainless steel, or ductile iron, this valve is durable and corrosion-resistant, suitable for water, steam, oil, and gas systems. Its swing disc design ensures reliable sealing with minimal pressure drop, while its compact form factor simplifies installation and reduces overall system weight.
2500LB swing check valve
2500LB swing check valve
The 2500LB Swing Check Valve is an ultra-high-pressure, heavy-duty valve designed for the most demanding industrial applications. Rated for Class 2500 (ASME B16.34), this valve is engineered to withstand extreme pressures (up to 420 bar/6,090 psi) and high temperatures (up to 800°F/427°C), making it ideal for critical applications in oil & gas, petrochemical, and power generation industries. Constructed from forged steel (carbon steel or alloy steel), this valve offers exceptional strength and durability, ensuring reliable performance in ultra-high-pressure systems. Its swing disc design ensures minimal pressure drop and immediate sealing upon flow reversal, while its robust construction provides long-term reliability...
1500LB swing check valve
1500LB swing check valve
The 1500LB Swing Check Valve is a high-pressure, heavy-duty valve designed to prevent reverse flow in critical industrial applications. Rated for Class 1500 (ASME B16.34), this valve is engineered to withstand extreme pressures and temperatures, making it ideal for oil & gas, petrochemical, and power generation industries. Featuring a swing disc design, the valve ensures reliable sealing with minimal pressure drop, while its robust construction provides long-term durability in harsh operating conditions. The valve is available in a variety of materials, including carbon steel, stainless steel, and alloy steel, to meet the demands of different media and environments.