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  1. Oilyguy90

    POPPET VALVE SYMBOL AMBIGUITY

    Hello 73lafuite, Many thanks for your quick response! Please find my replies in Red below: Do not worry the D7300 or D7765 distributors have no internal leaks, even if the symbol on D7300 is poorly represented. Great! I thought there was something I was missing with the weird check valve...
  2. Oilyguy90

    Actuator not functioning after hydraulic oil replacement

    Hi Hamza, I am going to make two assumptions here. [1]The hydraulic actuator in question is a linear double acting hydraulic cylinder and not a hydraulic motor. [2]Closing of butterfly valve is during retraction stroke of cylinder. (My argument still applies even if closing is during...
  3. Oilyguy90

    POPPET VALVE SYMBOL AMBIGUITY

    Hi 73lafauite, Thank you for your response. I was of the opinion of using the same manufacturer (HAWE) but have been referring a different datasheet D7300. I have attached this here for your reference. If you look at "Table 1: Flow Pattern" on page 2; under "3/2-way valves", you will find...
  4. Oilyguy90

    POPPET VALVE SYMBOL AMBIGUITY

    Hello, Please refer to the attached hydraulic symbols for 3 way 2 position poppet type direction control valves. My question is regarding the orientation of the check valve symbol on the different ports. Manufacturers sometimes show the arrow of the check valve on the 'T' port to be pointing...

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