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  1. nazrolf

    material selection for pneumatic valve

    I have designed and built a pneumatic valve (current quantity four) with a G2 cast iron body and spool made of S7(Rc 50) with a lapped 45* seat and a land width of .125". It is used to control a circuit handling 250 psi for a valve gated hot runner. Is this a good material selection for...
  2. nazrolf

    valve seat alpping

    I have designed and built a pneumatic valve (current quantity four) with a G2 cast iron body and spool ma66de of S67(Rc 50) with a lapped 45* seat and a land width of .125". It is used to control a circuit handling 250 psi for a valve gated hot runner. I have built a fixture to grind the...
  3. nazrolf

    valve lapping

    I have designed and built a pneumatic valve (current quantity four) with a G2 cast iron body and spool made of S7(Rc 50) with lapped 45* seats and a land width of .125". It is used to control a circuit handling 250 psi for a valve gated hot runner. I have built a fixture to grind the seats...

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