3-way ball valve · Made in our Wenzhou plant
3-Way Flanged Ball Valve — T-Port & L-Port, PN16
A flanged ball valve with three ports: two in line and one branch. The bore through the ball is T-shaped or L-shaped, so one valve can divert, switch or mix flow between three pipes. Made with a fixed (trunnion-mounted) ball or a floating ball. Cast body in CF8 stainless steel or WCB carbon steel, rated PN16, made and pressure-tested in our own plant.
- T-port ball: 4 flow positions; L-port ball: 2 flow positions
- DN, PN and body material cast on every body
- Every valve shell- and seat-tested before shipment
An engineer replies within 24 hours.
Flow patterns
T-Port or L-Port: How the Flow Is Switched
A and B are the in-line ports, C is the branch. Turning the stem moves the bore in the ball to a new position. Orange shows the connected ports.
T-port ball — 4 positions
A + B + C connected
C ↔ A, B closed
C ↔ B, A closed
A ↔ B straight through
L-port ball — 2 positions
C ↔ A, B closed
C ↔ B, A closed
- T-port: to mix two flows into one, split one flow into two, or switch with a straight-through option
- L-port: to send one inlet to one of two outlets (diverting), or to select one of two sources
Specifications
Technical Data
| Valve type | 3-way ball valve, flanged |
| Ports | 3: two in line (A, B), one branch (C) |
| Ball | Fixed (trunnion-mounted) or floating ball |
| Ball bore | T-port or L-port |
| Pressure rating | PN16 |
| Body material | CF8 (A351) stainless steel · WCB (A216) carbon steel |
| Construction | Bolted body joint |
| Top | Mounting pad for a gearbox or actuator |
| Body markings | DN, PN and material cast on the body |
| Testing | GB/T 26480 — every valve |
| Documents | Material certificate and test report with every shipment |
Testing
Pressure Test on Every Valve
| Test | Pressure |
|---|---|
| Shell test (water) | PN16: 2.4 MPa |
| Seat test (water) | PN16: 1.76 MPa |
Tested per GB/T 26480. Actual values for each valve are on the test report shipped with the order.
Real photos
3-Way Ball Valves from Our Plant
CF8 · PN16
DN65 · CF8
WCB · PN16
DN80 · CF8
MATERIAL CHECK · SPECTROMETERQuality records
Mill Test Certificate (EN 10204 3.1) in Every Shipment
- Heat number of the body casting
- Chemical composition against ASTM limits
- Mechanical properties: tensile, yield, elongation
- Shell and seat test pressure and hold time per GB/T 26480
- Signed and stamped by our QC department
SAMPLE MTC · EN 10204 3.1 · CLICK TO OPEN
We welcome third-party inspection (e.g. SGS or BV), arranged and paid for by the buyer; inspectors get full access to our plant and test bench.
Download Sample MTC (PDF)Made in one plant
From Machining to Crate in Wenzhou
01 MACHINING
02 DRILLING
03 ASSEMBLY
04 PRESSURE TESTSee the valve before you order
Real footage from our ball valve line. Want to see your own order? Book a live video call and we show your valves on the test bench.
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CRATED AT OUR PLANTPacking & delivery
Packed for Sea Freight
- Flange faces capped to protect the sealing face
- Each valve bagged; the order packed in plywood cases
- Product test report inside every case
- Standard sizes ship in 15–20 days
How to order
Tell Us How the Valve Must Switch
A 3-way valve is chosen by its flow positions, not only by size. Mark the inlet and outlets on a sketch (A, B, C as in the diagrams above) and say which positions you need. We confirm the bore type with your quote.
Send us these 8 details for a fast quote
- Size (DN)
- T-port or L-port, fixed or floating ball, and the flow positions you need
- Body material (CF8 / WCB)
- Flange standard
- Media and operating temperature
- Operating pressure
- Hand-operated or actuated
- Quantity and destination port
FAQ
Frequently Asked Questions
What is the difference between a T-port and an L-port 3-way ball valve?
The T-port ball has a T-shaped bore and gives 4 flow positions: all three ports connected, branch to either side, or straight through. The L-port ball has an L-shaped bore and connects the branch to one side at a time (2 positions). Choose T-port to mix or split flow, L-port to divert one flow to one of two outlets.
Can a 3-way ball valve mix two flows?
Yes, with a T-port ball. In position 1 all three ports are open, so two inlets can feed one outlet, or one inlet can feed two outlets.
Which body materials do you make?
CF8 stainless steel and WCB carbon steel, both rated PN16. Size, rating and material are cast on every body.
What documents ship with the valve?
A material certificate and a pressure test report. We welcome third-party inspection, arranged and paid for by the buyer.
What is the lead time?
Standard sizes ship in 15–20 days. We confirm the delivery date with your quote.
Where is the valve made?
In our own plant in Wenzhou, China: machining, assembly and pressure testing.
Need a Quote for This Valve?
Send size, T-port or L-port, body material and quantity. An engineer replies within 24 hours.