Abrasive ejects from the top of the abrasive metering valve during normal operation or
before a fill cycle
• Check the mesh size of your abrasive. The minimum size that can be used with the ADS is 120
mesh.
• PR2 may be set too high. Decrease the pressure to PR2, but maintain at least a 3.45 bar (50
psi) difference between PR1 and PR2
ADS continuously vents
• There may not be enough of a pressure difference between PR1 and PR2. Adjust the pressure
until there is at least a 3.45 bar (50 psi) difference between PR1 and PR2.
• The venting valve may be malfunctioning. Clean the valve. If this does not work, it may have to
be replaced. Call Flow Service!
Air and/or abrasive leaks from the silo
• PR2 may be set too high. Decrease the pressure to PR2, but maintain at least a 3.45 bar (50
psi) difference between PR1 and PR2.
• The PV1 pinch valve seal is defective. Install a new seal.
Air leaks from the silo after a fill cycle and the vessel is unable to pressurize
• Make sure your air supply is at least 6.9 bar @ 566 L/min (100 psi @ 20 scfm).
• Increase your air supply to 8.3 bar (120 psi) maximum.
• Install an air receiver tank just before the ADS. A 56 liter (15 gallon) receiver should be
sufficient.
ADS does not convey enough abrasive
• The abrasive demand may be too high.
• The outlet opening on the vessel may be contaminated or blocked. Examine the outlet opening
in the vessel for contamination and foreign objects. Look for restrictions in the hose between the
vessel and the waterjet machine. Look for restrictions in the abrasive metering system.
© 2021 Flow International Corp.
Retrieved from Flow KB on April 14, 2021 PST
Ancillary option: PASER CF900 Abrasive Delivery System
Summary of Contents for MACH 300
Page 1: ...MACH 300 SYSTEM MANUAL Includes Ancillary Options M 810 REV C en APRIL 2021...
Page 28: ...View 2 2021 Flow International Corp Retrieved from Flow KB on April 12 2021 PST Safety...
Page 29: ...View 3 2021 Flow International Corp Retrieved from Flow KB on April 12 2021 PST Safety...
Page 107: ...ANCILLARY OPTIONS For Mach 300...