The Marwin Series 3L/T-2R/S33 is a versatile large size (2" - 6") multi-port ball valve. It can be configured as either a 3-way or a 4-way valve with "L" or "T" ports. It consists of a heavy-duty center section with bolted-on flanged ends for 2" - 6" Class 150 flanges, or 2" - 4" Class 300 Flanges. All body gaskets are Teflon. The valve features four seats for equal seat loading, and a trunnion ball to prevent excessive seat loading and reduce side loading on the stem. It also features a unique live-loaded cup-and-cone lower stem seal/thrust bearing that separates the bearing and sealing functions, as well as a multiple v-ring upper stem seal.