In closed systems such as this, all clamps and components must be leak-free, so use only Roemheld products. For best results, clamps should use only 60-70% of the Screw Pump's total fluid capacity. System plumbing must be designed to avoid air pockets. If Screw Pump is not at the highest point in the system, include a separate fill plug at the highest point. Always include a pressure gauge on the fixture when using a Screw Pump. When using an accumulator, use only the smallest size (CLR-9606-102-PDA) due to limited fluid capacity. For additional safety on palletized fixtures, use a Control Cylinder, with position sensing on the machine tool.