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3 Way Flange Ball Valve

There are two types of flange three-way ball valves, one is L-type and the other is T-type. The difference between the two lies in the significant differences in structure, function and application scenarios.

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3 Way Flange Ball Valve is a specialized type of Ball Valve designed to manage and divert flow between multiple pipelines. The difference between the two lies in the significant differences in structure, function and application scenarios. The ball channel of the L-type three-way ball valve is L-shaped, the main channel and the branch channel are at a certain angle, the center position of the ball is offset from the axis of the main pipeline, the valve seat is designed to be sealed on both sides, and the structure is relatively simple.

The ball channel of the T-type three-way ball valve is T-shaped, the main channel and the branch channel form a 90° and 180° connection, the center position of the ball coincides with the axis of the main pipeline, and the valve seat is designed to be four-sided.L-shaped application scenarios require simplified piping systems that frequently change flow direction, such as air conditioning systems and water treatment equipment. It can simplify pipeline layout and improve operational flexibility.

T-type application scenarios are in complex piping systems, such as the chemical, petroleum, and natural gas industries, which require flexible control of flow direction or handling of high flow and low pressure conditions.

Chenyu Valves produces robust flange three-way ball valves in both L and T configurations. Our production emphasizes precise machining and assembly to ensure smooth operation and tight shut-off in demanding applications, supporting efficient system design in processing and distribution networks.

Main Features of 3 Way Flange Ball Valve

Design Structure	Anti-static device/Anti-Blow out Fire Safe/ ISO 5211 Mounting Pad
Connection Ends	FLG, BW
Operation	Lever, Gear, Electric, Pneumatic
Main Material	WCB, LCB, CF8, CF8M, SS321 etc.
Sealing Material	Soft seal (PTFE), PPL
Design & Manufacture	ASME B16.34; GB/T12237
Face to Face	GB/T12221
Flange Ends	EN1092-1; ASME B16.10
Inspection & Testing	JB/T9092
Leakage Class	Zero Leakage
Pressure Rating	PN16-PN40; 150LB-300LB
Size Range	1/2" - 12" (DN15-DN300)

Main Advantage of 3 Way Flange Ball Valve

Feature	L-Type 3-Way Flange Ball Valve	T-Type 3-Way Flange Ball Valve
Primary Function	Flow Diversion / Switching	Flow Diversion, Mixing & Splitting
Flow Path	Connects the common port to either of the two other ports independently. All three ports are never interconnected.	Can connect any two ports, or connect all three ports simultaneously (in the mid-position).
Key Advantages	1. Absolute Isolation: Ensures complete separation between the two outlet lines, preventing unintended media mixing for safe, reliable operation. 2. Clear Operation: Typically has two defined positions, making operation simple and error-proof. 3. Dedicated Design: Ideal for applications requiring strict switching or isolation between two independent lines, such as pump alternation or A/B system switching.	1. Multi-Functionality: One valve performs multiple duties: diverting, mixing (e.g., hot & cold fluids), or splitting one flow into two. 2. System Simplification: Replaces complex arrangements of multiple two-way valves and fittings, saving space and cost. 3. Process Flexibility: Enables dynamic adjustment of mixing ratios or distribution in various process loops.
Typical Applications	Dual-filter switching, heat exchanger bypass, A/B standby equipment selection.	Blending two fluids (e.g., acid-base neutralization), distributing one stream to two destinations, systems supplying from two sources to one destination.

3 Way Flange Ball Valve Application

1. Chemical & Petrochemical Processing

Reactor Feed Control: Mixing two different raw materials (A & B) in a T-port valve, or switching between separate feed lines using an L-port valve.
Catalyst Injection & Switching: Switching between different catalyst supply lines or blending a catalyst with the main process stream.
Product Distribution: Diverting a process stream to different downstream units (e.g., to a distillation column or a storage tank).
System Purging/Draining: Switching between a process fluid line and a utility line (e.g., for nitrogen purging or chemical cleaning).

2. Power Generation (Thermal Systems)

Condensate Handling: At a condensate pump discharge, switching flow to either return to the boiler system or dump to drain during start-up or high-level conditions (a classic L-port application).
Cooling Water Systems: Diverting flow through or around a heat exchanger (bypass) for maintenance or temperature control.
Sampling Systems: Splitting a small portion of high-pressure steam/water to a sample cooler while maintaining main line flow.

3. Water & Wastewater Treatment

Filtration Systems: Managing flow paths for filter media backwashing and rinsing cycles, switching between "service," "backwash," and "rinse" modes.
Chemical Dosing: Blending different treatment chemicals (e.g., acid, caustic, coagulant) with water (T-port), or alternating between chemical storage tanks (L-port).
Sludge Handling: Diverting sludge flow to different thickeners or dewatering units.

4. Pharmaceutical & Food & Beverage

CIP (Clean-in-Place) Systems: Switching pipelines between various cleaning agents (acid, alkali, hot water) and product media for automated cleaning.
Batching & Blending: Precisely mixing multiple liquid ingredients into a blend tank (T-port valve).
Filling Lines: Diverting product to different filling machines or packaging lines.

5. HVAC

Heat Exchanger Control: Mixing primary and secondary circuit water flows to precisely control supply temperature to building zones (a typical T-port mixing application).

Technical Specifications:

3 Way Flange Ball Valve

How to Choose: L-Port vs T-Port 3-Way Ball Valve

Your Requirement	Recommended Valve Type	Key Reason
To switch flow between two completely isolated lines (e.g., Pump A or Pump B, Run or Bypass).	L-Port Valve	Its bore design physically prevents the two outlet ports from ever being connected, ensuring safe, positive isolation.
To mix two different fluids into one common stream (e.g., hot & cold water).	T-Port Valve	In its mid-position, it connects all three ports, allowing two inlets to merge into one outlet.
To divert or split one inlet stream between two outlets (e.g., to Tank 1 or Tank 2).	T-Port Valve	It can connect the common port to either side port, or (in some positions) partially to both for splitting.
Simple, foolproof operation between two fixed flow paths.	L-Port Valve	It has two clear, distinct positions (straight through or 90° diversion), minimizing operational error.