Most valves have five basic components:

  • Seat
  • Guard (guard, stop plate, buffer, plate, etc.)
  • Sealing element (valve plate or valve ring, channel, poppet, feather strip, ball, etc.)
  • Damping element (coil springs, cushion plates, spring plates, damping plates, etc.)
  • Assembly element (bolts, nuts, retainer ring, etc.)