APCO CSC 消音止回阀旨在通过在发生逆流之前主动关闭来减轻水锤。该阀门关闭时无声，成本低，可靠，无需定期维护。

消音止回阀通常用于垂直涡轮泵安装，用于从井泵送至高架水库。它们还推荐用于商业和工业 HVAC 应用，例如供暖系统和冷凝水回流管线。根据规定，APCO CSC 静音止回阀已获得工厂互助系统批准，可用于危险消防设备和消防系统。

APCO 消音止回阀的短面对面尺寸为设备室管道布局提供了紧凑的解决方案。APCO 静音止回阀在垂直向上流动或向下流动或水平位置安装时能够实现静音操作。阀门可以是金属阀座或弹性阀座。弹性阀座环可在现场轻松添加，以将金属阀座阀门转换为弹性阀座阀门。

对夹式和球式阀门均提供全流通面积。薄片式阀门的流通面积比管道面积大 3%，截止式阀门的流通面积比管道面积大 10%。阀体的轮廓设计旨在实现平稳流动和最小损耗。阀体中关键点的全横截面积大于相同尺寸管道的横截面积，因此 APCO 静音止回阀的压头损耗低于许多其他品牌的静音止回阀。

APCO 消音止回阀的短面对面尺寸为设备室管道布局提供了紧凑的解决方案。APCO 静音止回阀在垂直向上流动或向下流动或水平位置安装时能够实现静音操作。

APCO CSC Silent Check Valves are designed to mitigate water hammer by positively closing before reversal of flow can occur. The valve closes silently, is low in cost, reliable and requires no regular maintenance.

Silent check valves are commonly used in vertical turbine pump installations when pumping from a well to an elevated reservoir. They are also recommended for commercial and industrial HVAC applications such as heating systems and condensate return lines. When specified, the APCO CSC Silent Check Valves are Factory Mutual System Approved for use on hazardous fire fighting equipment and fire protection systems.

The short face-to-face dimensions of APCO Silent Check Valves offer a compact solution in equipment room piping layouts. APCO Silent Check Valves are capable of silent operation when installed in vertical flow up or flow down, or horizontal position. Valves can be metal seated or resilient seated. The resilient seat ring can be easily added in the field to convert a metal seated valve to a resilient seated valve.

Both the wafer style and the globe style valves provide full flow area. Flow area of wafer style valves is 3% greater than pipe area while globe style valves are 10% greater than pipe area. The contours of the valve body are designed for smooth flow and minimum loss. The full cross-sectional area of critical points in the body is greater than the cross-sectional area of the same size pipe, giving the APCO Silent Check Valve lower head loss than many other brands of silent check valves.

The short face-to-face dimensions of APCO Silent Check Valves offer a compact solution in equipment room piping layouts. APCO Silent Check Valves are capable of silent operation when installed in vertical flow up or flow down, or horizontal position.

CSC.pdf

尺寸范围：
对夹式 1-10” (15-250mm); 球体 3-42” (80-1100mm)

阀体类型：
300A 对夹式和 600A 球形式

端部连接：
ASME 125/150 或 ASME 250/300

阀体材质：
铸铁、球墨铸铁、碳钢、316不锈钢

阀座材质：
金属、丙烯腈-丁二烯 (NBR)、乙烯-丙烯-二烯三元共聚物 (EPDM) 或氟橡胶 (FKM)

SIZE RANGE:
Wafer 1-10” (15-250mm); Globe 3-42” (80-1100mm)

BODY STYLES:
300A Wafer Style and 600A Globe Style

END CONNECTIONS:
ASME 125/150 or ASME 250/300

BODY MATERIALS:
Cast iron, ductile iron, carbon steel, 316 stainless steel

SEAT MATERIALS:
Metal, Acrylonitrile-Butadiene (NBR), Terpolymer of Ethylene Propylene & A Diene (EPDM) or Fluoro Rubber (FKM)