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首页Home美国尼必可公司 Nibco Inc青铜与铸铁阀门 Bronze & Iron Valve>正文Text
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如何定购
how to order
铸铁止回阀选配件和附件 - 杠杆和压铁/弹簧(仅限于工厂安装)
Iron Check Valve Options and Accessories
Lever and Weight/Spring (factory installed only)

美国尼必可有限公司
铸铁阀体旋启式止回阀可配置外置杠杆和压铁,或者杠杆和弹簧
Iron Body Swing Check Valves are available with Outside Lever and
Weight or Lever and Spring

用于流向朝上的垂直管道
for use in
vertical lines
for upward flow


用于水平管道
for use in
horizontal lines

  配置杠杆和压铁是为了在外部控制阀瓣运动。为了避免突然出现的逆流,有必要迅速行动时,杠杆和压铁有助于阀瓣迅速关闭,或者将杠杆和压铁放置在任何位置,以实现所需要的操作性能。
  The lever and weight arrangement is used to maintain exterior control over disc movement. It is possible to assist the disc to close rapidly where quick action is necessary to avoid a sudden reversal of flow or set the lever and weight at any position to get desired operating performance.

  下列插图是一些常见的杠杆和压铁位置。
  Illustrated below are some commonly accepted positions of the lever and weight.

  安装杠杆和压铁有助于阀瓣的关闭。
  Lever and weight mounted to assist the disc in closing.

  杠杆和压铁安装在阀门的右侧,面对着进水口。可配置在型号F-918通径DN65~DN300德止回阀上。
  The lever and weight is mounted on the right side of the valve when facing the inlet.
Available on Figure no. F-918 in sizes 21/2"–12".

  杠杆和弹簧在关闭阀瓣时可进行更加积极主动的控制。
  弹簧的拉力可以调节控制针对阀瓣的压力。
  Lever and Spring provides more positive control in closing the disc.
  Tension of the spring may be adjusted to control the pressure against the disc.

型号F-918-BL&S
Fig. No. F-918-BL&S

在美国阿肯色州的工厂内的铸铁阀门上,采用硅润滑剂
Silicone lubricant usage in Iron Valves at the Blytheville, Arkansas Plant

  多转铸铁阀门:闸阀、截止阀、角阀和止回阀
  Multi-turn Iron Valves: Gate, Globe, Angle and Check
  在美国阿肯色州生产的阀门中,只有止回阀在组装期间采用硅润滑剂。硅酮是以润滑脂的形式使用,应用在阀座上。
  Of the valves that are produced at the Blytheville plant, the check valve is the only type that uses silicone during assembly. The silicone used is in the form of grease, and is applied to the seat.
  注意:在美国阿肯色州工厂内组装和测试的阀门没有使用硅润滑剂,但是仍然有可能在出厂后的运输过程中暴露在含有硅的空气中。因此,美国尼必可公司不能够保证在美国阿肯色州工厂生产的阀门100%不含硅。
  NOTE: Valves that are assembled and tested without silicone lubricants in this plant have a potential exposure to air-born silicone as well as during shipping after they leave the plant. Therefore, NIBCO cannot certify valves produced in the Blytheville plant to be 100% silicone free.

特别制作的止回阀:
Special Ordered Check Valves:

  根据用户的要求,我们能够以所谓的“干式组装”的方式组装止回阀。这些阀门的组装使用硅润滑剂。
  We will, upon request, assemble check valves that are described as “Assembled-Dry”. These valves are assembled NOT using the silicone grease.

  美国尼必可止回阀可以安装在水平管道或流向朝上的垂直管道的任何中间位置上。当倾斜度不超过15o时,也能够令人满意的工作。
  NIBCO check valves may be installed in both horizontal and vertical lines with upward flow or in any intermediate position. They will operate satisfactorily in a declining plane (no more than 15o).

  注意:不要在往复式空气压缩系统内使用。
  WARNING: Do not use for reciprocating air compressor service.

美国尼必可公司保留在没有另行通知的情况下,改变材料、选配件和附件的权利。
NIBCO INC. reserves the right to change materials, options and accessories without notice.
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