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Step 6: Choosing The Correct Material Transfer Pumps

Material transfer pumps, also known as drum pumps or stick pumps, are used to transfer SPF material from the bottom of the 55-gallon drum to the foam proportioner. These pumps are typically pneumatic driven and come in 1:1, 2:1, and 3:1 ratios. We typically set these up to deliver 200 psi of fluid pressure to the proportioner.