The Marwin 3L/T-2R/S33 Series 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.
Features include:
1. In sizes 2" through 6" with Class 150 flanges.
2. Sizes 2" through 4" with Class 300 flanges (2" CF8M valve rated 720 psi @ 100°F, 2-1/2" through 4" CF8M valve rated 580 psi @ 100°F).
3. "L" and "T" port, 90° and 180° operation, and 3 and 4 port connections to suit most requirements.
4. Full port design standard for optimal flow.
5. Blow-out proof stem and anti-static devices between ball and stem, and cover and stem.
6. Four-seated design for balanced seat loading and positive sealing at any port.
7. Trunnion-supported ball for lower torque and longer seat life.
8. Fully machined ISO 5211 mounting pad for simple and convenient automation.
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