Our 100 lb. Portable Pressure Pot is perfect for large on-site or over-sized projects. The portable pressure vessel is ASME certified.
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I can't get the air to stop coming out my hose. The foot pedal has no control. I have taken apart my entire assembly at the bottom of the pot, replaced the white block along with the rubber diaphragm.
This could only be caused by two possible problems:
1. Air-supply. The Pressure Pot requires at least 80psi supplied to the pot for the diaphragm to stop the flow of air and sand through the white valve body (lower media valve). The upper media valve requires a minimum 30psi greater pressure then your blasting pressure (shown on pot's regulator). The upper media valve receives the unregulated air-supply from the compressor. Confirm your Air Compressor is set at the maximum air-output there should be no air restriction to the pot.
2. Foot Pedal Actuator. There is an actuator located in your foot pedal housing that interrupts the air supply when stepping on the pedal. When the pedal is not being depressed it is "normally open" meaning the air is flowing through it. Once you step on the pedal it allows the built up pressure in the lower media valve to force the diaphragm open and the sand and air to flow through the lower media valve and the blasting hose. If your sand and air is not stopping, possibly the foot pedal actuator is stuck closed or pressed in and will not spring back out. Open the foot pedal housing and confirm the actuator tab springs in and out when pressing the tab.
And so, dear brothers and sisters, we can boldly enter heaven’s Most Holy Place because of the blood of Jesus. By his death, Jesus opened a new and life-giving way through the curtain into the Most Holy Place. And since we have a great High Priest who rules over God’s house, let us go right into the presence of God with sincere hearts fully trusting him. For our guilty consciences have been sprinkled with Christ’s blood to make us clean, and our bodies have been washed with pure water. Let us hold tightly without wavering to the hope we affirm, for God can be trusted to keep his promise. Hebrews 10:19-23 (NLT)
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