Delavan designs, engineers and manufactures a wide variety of roller pumps to meet the widest ranges of low-volume, moderate-pressure pumping applications. To ensure the best performance for your investment, we incorporate such features as “Ultra” rollers, heavy-duty sealed bearings. Max flow: 24 GPM. Max pressure: 300 PSI. Max speed: 1000 RPM. Port sizes: 1″ NPT. Pump shaft rotation: CCW (CW available for direct coupling to gas engines. See 8900C-R.) 15/16″ solid stainless steel shaft. Our eBay Store About Us Contact Us Add to Favorite Sellers Delavan 8 Roller Cast Iron Pump 15/16″ Shaft & 1″ NPT Inlet & Outlet 219.95 Delavan designs, engineers and manufactures a wide variety of roller pumps to meet the widest ranges of low-volume, moderate-pressure pumping applications. To ensure the best performance for your investment, we incorporate such features as “Ultra” rollers, heavy-duty sealed bearings, Viton seal rings, stainless steel shafts and rotors, and close tolerance machining. Max flow: 24 GPM. Max pressure: 300 PSI. Max speed: 1000 RPM. Port sizes: 1″ NPT. Pump shaft rotation: CCW (CW available for direct coupling to gas engines. See 8900C-R.) 15/16″ solid stainless steel shaft.