T Port Three Way Plug Valve Specification and Main Structure
Nominal Diameter: DN15 ~ DN600
Pressure Rating: PN10-PN100, Class 150 / 300 /600
Operating Temperature: -29℃ ~ 180℃ (soft seal ≤120℃; metal seal up to 200℃)
Applicable Media: Water, hot water, steam, fuel oil, lubricant, compressed air, weak acid & alkali, natural gas, chemical liquid
Main components include valve body, T port plug, valve stem, packing sealing assembly, gland and driving device.
Connection ends: Threaded (NPT/BSP), flanged, socket weld;
Body materials: Stainless steel 304/316, cast steel, brass, cast iron;
Seal options: PTFE soft seal, metal-to-metal hard seal;
Drives: Manual hand lever, pneumatic actuator, electric actuator.

T Port Three Way Plug Valve Working Principle

The plug inside the valve body has a through T-shaped passage. By rotating the handle or actuator 90 degrees, the T bore aligns with three valve ports to form different flow modes:
1. Diverting: One inlet medium splits and flows out from two outlets at the same time;
2. Mixing: Two incoming media converge into one outlet for blending;
3. Independent switching: Connect any two ports while cutting off the third passage.
4. Full straight-through bore brings minimal flow resistance and low pressure loss, with no dead space to avoid medium sedimentation.
 

T Port Three Way Plug Valve Key Advantages
1.Multi-function control: Realize mixing, diverting and switching in one valve;
2.Smooth full bore flow, anti-clogging, suitable for viscous and slightly particle-containing media;
3.Quick 90° operation, low opening torque for easy control;
4. Excellent tight sealing performance, reliable for high & low temperature working conditions;
5.Flexible installation without inlet/outlet direction limitation;
6.Simple disassembly and easy replacement of sealing parts for low maintenance cost.