The X-6 press is designed to squeeze product mash at a slow and steady pace. Pressing too fast causes the bags to fail and causes the mash to raise up and out of the bag. Remember slow and steady wins the race!
The flow control valve meters how much fluid is allowed to pass through it, hence changing the pressing speed. The pressing speed difference from a fully open flow control valve to a half open flow control valve is minimal to an observer. This is why it may appear as though you have no speed control. But from half way open to the fully closed position on the flow control valve, there is very noticeable speed difference. This is the zone you will want to operate in.
How to test if the flow control valve is working properly
Begin with the press in the fully open position and place the directional valve in the neutral position.
Turn the flow control knob clockwise until it stops. This is the closed position.
Place directional lever into the pressing position. The platen should not move. If the platen moves the flow control valve has failed and needs to be replaced.
If the platen does not move, place the directional valve back into the neutral position.
Turn the flow control valve counter clockwise ½ of a revolution and place the directional valve into the pressing position. The platen should now begin to move very slowly.
If you made it to step 5 without any issues, then your flow control valve is functioning properly.
For 100% of the products processed with the X-6 press, there is never a need to open the flow control valve more than one full revolution counter clockwise from the completely closed position.