A 3 way ball valve replaces a tee fitting and two shut-off valves with a single body. Turn one handle — or one actuator — to send flow to either of two outlets, or to blend two lines into one. Fewer joints, fewer leak points, one control point.
We manufacture three way ball valves in 316 stainless steel in Taiwan, and have done since 1999: threaded, Tri-Clamp sanitary and KF vacuum versions, manual or pneumatic. ISO 9001 · CE.
L-Port vs T-Port: Which Ball Do You Need?
The difference is the passage drilled through the ball.
| Port type | Flow pattern | Typical jobs |
|---|---|---|
| L-port | 90° passage. Connects the common port to one side port at a time — select outlet A or outlet B. | Diverting: tank changeover, pump selection, filling two vessels from one line. |
| T-port | T-shaped passage. Can join two inlets into one outlet, split one inlet to two outlets, or pass straight through. | Mixing and distribution: blending lines, recirculation loops. |
Every valve on this page is made in both L-port and T-port versions — tell us which one when you request a quote.
Choose by Operation and Service
Threaded — general industrial lines
Manual 3-Way Ball Valve (MV-3M) — PT threaded 1/4″–2″, 1000 WOG, PTFE seats, lever handle. The body carries an ISO-style mounting pad, so the same valve can take a pneumatic or electric actuator later.
3-Way Pneumatic Ball Valve (MV-3DM) — PT threaded 1/4″–2″, 1000 WOG, direct ISO 5211 mount with no bracket. Double acting or spring return.
Tri-Clamp — sanitary, food & beverage
Sanitary 3 Way Ball Valve, Manual (MV-3N) — Tri-Clamp or OD-tube butt weld ends, 1/2″–2″, 1000 WOG, encapsulated PTFE seat.
Sanitary Pneumatic 3-Way Ball Valve (MV-3M-TC) — Tri-Clamp ends, 1/2″–2″, fully encapsulated PTFE seat with no cavity behind the ball. Double acting or spring return actuator.
KF / NW flange — vacuum systems
Manual 3-Way Vacuum Valve (V-3WV) — NW40 / NW50 KF flange. One lever diverts a vacuum pump between chambers or vents a line.
Pneumatic 3-Way Vacuum Ball Valve (V-3WVM) — NW40 / NW50 KF flange, double acting or spring return actuator, PTFE seats.
Quick Comparison
| 閥門 | 運作 | 結束連線 | 尺寸 | Port options |
|---|---|---|---|---|
| MV-3M | 手動搖桿 | PT thread | 1/4″–2″ | L / T |
| MV-3DM | Pneumatic (DA / SR) | PT thread | 1/4″–2″ | L / T |
| MV-3N | 手動搖桿 | Tri-Clamp / OD-tube butt weld | 1/2″–2″ | L / T |
| MV-3M-TC | Pneumatic (DA / SR) | 三鉗 | 1/2″–2″ | L / T |
| V-3WV | 手動搖桿 | KF (NW) flange | NW40 / NW50 | L / T |
| V-3WVM | Pneumatic (DA / SR) | KF (NW) flange | NW40 / NW50 | L / T |
All six are 316 stainless steel bodies with PTFE seats.
常見問題
我之後可以為這個手動閥安裝一個執行器嗎？
是的，在螺紋式手動閥（MV-3M）上：其閥體配備 ISO 規格的安裝座，因此無需更改管路即可安裝氣動或電動執行器。若您希望從一開始就使用工廠預組裝的裝置，請選擇氣動型號。.
該如何在 L 型連接埠和 T 型連接埠之間做出選擇？
Pick L-port when you want to send flow to one of two destinations and never both. Pick T-port when you need to mix two lines, feed two outlets at once, or keep a straight-through path. Both patterns are made for every model here — specify L or T when you order.
有哪些尺寸可供選擇？
Threaded valves cover 1/4″ to 2″, sanitary Tri-Clamp valves 1/2″ to 2″, and vacuum valves come in NW40 and NW50 KF flange sizes.
車身和座椅的材質是什麼？
這六款型號均採用 316 不鏽鋼本體，並配備 PTFE 閥座。.
貴公司是否同時供應分流型和混合型兩種款式？
Yes. L-port and T-port balls are both manufactured for every model on this page — specify the port pattern when you order.
是否有最低訂購量？
No. We are the manufacturer, and small quantities are welcome. Send us the size, port pattern (L or T), end connection and operation type, and we reply within 24 hours.