Z Series Gear Pumps Legendary “3600” Series pump design with enhanced seal & assembly options 0 sizes available 0 GPM (UP TO) 0 PSI (UP TO) 2 " ANSI or NPT (UP TO) Z Series Documents Z Series Z Series Curves & Technical Data Documents Configuration Options optional pressure relief valveANSI flangesSingle, double and cartridge mechanical sealOutboard bearing, depending on drive and seal arrangements Typical Applications Mixing Transfer Blending Recirculation Materials of Construction Cast iron housing standard (ductile iron option) Hardened steel shafts Hardened steel gears Helical gears for quiet operation Single mechanical seal Wear-resistant bronze bearings