ACI Services Inc.  

Accu-Guide™ Poppet Valves

Features

  • Unique Patented Concept,
  • Overcomes failure problems of conventional poppets,
  • Maintains maximum valve efficiency while improving poppet life,
  • Can be used at higher speeds and differential pressures,
  • Valve springs are shielded and guided for longer life.

The Conventional "Mushroom" Type of Poppet

  • Heads have a significant overhang to the stem causing a flange. The intersection of this flange and the stem is the weakest cross-sectional area in the poppet. This area is subject to high shear loads due to gas differential pressures and/or poppet-to-seat impacts,
  • Poppet alignment concentricity is limited due to clearance needed between poppet stem and guide hole to control venting, resulting in valve-to-seat misalignments,
  • Valve springs squirm and come in contact with metal pocket faces, causing premature spring wear.

And Now, the Accu-Guide Poppet -- Available for all Poppet Valve Applications

  • Reinforced head-to-stem cross-section for greater differential pressure and higher speed applications,
  • Stronger poppet also eliminates the "Domino" effect of poppet failure when one poppet is damaged,
  • Internal guide posts with tighter running clearances eliminate leakage due to misalignments,
  • Flats machined 180º apart on the length of the post control venting,
  • Spring guidance system improves spring life and prevents bowing and metal-to-metal contact,
  • Counterbore in poppet head, and thermoplastic spring guide, anchors the spring and assures its alignment,
  • Valve spring shielded from gas flow,
  • Poppet head and seat profile designed to streamline gas flow past the open valve.