This is where the size starts to do real work. The 2″ (51 mm) P.800 shifts serious volume — tank unloading, bulk transfer, slurry that would jam or grind out a rotating pump. And the bigger the duty, the more the diaphragm design pays off: it passes solids, swallows entrained air, and runs dry without a mark.
Build it to the job. Cast iron or stainless for hard industrial transfer, polypropylene or PVDF when the fluid bites back, and a PTFE, Santoprene or Viton diaphragm to match. If it’s going to run all day, ask us about the Pro-Flo SHIFT air system — it trims the compressed-air bill, which at this size is money worth saving.
We ship the P.800 genuine and keep common configurations in stock. Send the fluid and flow rate and we’ll confirm the right build and the lead time.