Three Way Ball Valves > 3L/T-2R/S33 Series



![]() |
The Marwin Series 3L/T-2R/S33 is a versatile large size (2" - 6") multi-port ball valve. It can be configured as a three-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 & Benefits



![]() |
In sizes 2" through 6" with Class 150 flanges |
![]() |
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) |
![]() |
"L" and "T" port, 90° and 180° operation, and 3 and 4 port connections to suit most requirements |
![]() |
Full port design standard for optimal flow |
![]() |
Blow-out proof stem and anti-static devices between ball and stem, and cover and stem |
![]() |
Four-seated design for balanced seat loading and positive sealing at any port |
![]() |
Trunnion-supported ball for lower torque and longer seat life |
Download More Information



3L/T-2R/S33 Series Cutsheet
3L/T-2R/S33 Series I & M
Side Entry Port Configurations
Top Works Dimensional Drawing 2" - 6"
Dimensional Drawings
Condensed Catalog
For More Information



Find Your Local Representative
Request Literature
Search by Series
Marwin Spec Sheet
Actuator Sizing Program
Valve Sizing Program

3L/T-2R/S33 Series Cutsheet
3L/T-2R/S33 Series I & M
Side Entry Port Configurations
Top Works Dimensional Drawing 2" - 6"
Dimensional Drawings
Condensed Catalog
For More Information
Find Your Local Representative
Request Literature
Search by Series
Marwin Spec Sheet
Actuator Sizing Program
Valve Sizing Program




