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samson薩姆森4740型限位開關(guān) 可配備4746型限位開關(guān)

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品牌: samson薩姆森
規(guī)格: 10-20
單價(jià): 面議
所在地: 上海
有效期至: 長期有效
最后更新: 2020-12-29 10:53
瀏覽次數(shù): 364
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 samson薩姆森4740型限位開關(guān)

Design and principle of oper-

      ation

      The Type 47 40 Limit Switch can be mountedonto the following devices:

      - Type 3353 Angle Seat Valve (see Fig. 1)Type 3354 Globe Valve

      - Type 3379 Pneumatic Actuator

      The inductive proximity switches or micros-witches cause signals to be sent to a control .or alarm system when the travel exceeds orfalls below the adjusted limit.

      The limit switch can optionally be fitted witha 3/2-way solenoid valve. When the inte-grated solenoid valve is energized, supplyair is applied to the actuator. When the so-lenoid valve is de-energized, the actuator isvented and the control valve moves to its fail-safe position.

      The switching points of the limit contacts canbe changed within the travel range after in-stallation. See section 5.1 on page 20.



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