Hot forged brass body for improved mechanical strength Blow-out proof stem design for safety PTFE seats for reliable sealing performance Double O-ring stem sealing system 100% pressure and leakage tested Lockable lever handle for secure operation

Size Range: 1/2”~3″ Full Port, NPT ends Port Type: L-Port or T-Port Port Orientation: bottom entry Pressure Rating: 87 psi CWP (6 bar) Max Temperature: 344°F (173°C)

Three Way Ball Valves:

A 3-way ball valve features three ports and is typically available in two internal configurations: T-port and L-port. These designs allow the valve to perform flow diversion, mixing, or distribution functions within a single valve body. Ideal for controlling and diverting flow without the need for a tee and multiple valves. Can be used as a diverter, directing flow from one inlet to either of two outlets. Can also function as an input selector, where the outlet is fed from either of the other two ports.

T-port ball valves are commonly used for mixing or distributing flow. Two inlet streams can be combined into a single outlet, or a single inlet can be directed to multiple outlets. The opposite flow direction is also possible, allowing a single source to divert flow in two directions simultaneously. T-Port ball valves can direct flow between just two ports, either to the left, to the right, or straight through. This configuration is widely used in chemical processing, water treatment, and industrial pipeline systems.

L-port ball valves are primarily used for flow diversion. The valve directs flow from one inlet to one of two outlets, making it suitable for switching service or directional control. Only one flow path is open at a time, preventing cross-flow between outlet lines. From a single inlet, flow can be directed into two different outlets. In the opposite flow direction, a single outlet can receive flow from either of two inlets.

1. What certifications do 3 Way Ball Valves have?

3 Way Ball Valves are certified with ISO9001, API6D, and API607. They meet high-quality standards for safety and performance.

2. Can the 3 Way Ball Valve handle high pressure?

Yes, 3 Way Ball Valves are designed to handle high pressure, making them suitable for demanding industrial environments.

3. What after-sales service does NTVAL provide if valves have quality issues?

NTVAL provides technical assistance, troubleshooting, and guidance on valve operation. If needed, they send replacement parts or a new valve and offer repairs or replacements within the warranty period.

1. What certifications do 3 Way Ball Valves have?

3 Way Ball Valves are certified with ISO9001, API6D, and API607. They meet high-quality standards for safety and performance.

2. Can the 3 Way Ball Valve handle high pressure?

Yes, 3 Way Ball Valves are designed to handle high pressure, making them suitable for demanding industrial environments.

3. What after-sales service does NTVAL provide if valves have quality issues?

NTVAL provides technical assistance, troubleshooting, and guidance on valve operation. If needed, they send replacement parts or a new valve and offer repairs or replacements within the warranty period.

1. What certifications do 3 Way Ball Valves have?

3 Way Ball Valves are certified with ISO9001, API6D, and API607. They meet high-quality standards for safety and performance.

2. Can the 3 Way Ball Valve handle high pressure?

Yes, 3 Way Ball Valves are designed to handle high pressure, making them suitable for demanding industrial environments.

3. What after-sales service does NTVAL provide if valves have quality issues?

NTVAL provides technical assistance, troubleshooting, and guidance on valve operation. If needed, they send replacement parts or a new valve and offer repairs or replacements within the warranty period.

3-Way Ball Valve Manufacturer
L-Port & T-Port | Class 150–600 | NTVAL

NTVAL manufactures L-Port and T-Port 3-way ball valves for diverting and mixing flow in industrial piping systems. Available in NPS 1/2"–10" (DN15–DN250), Class 150–600 with API 598 testing and MTR 3.1 documentation.

How a 3-Way Ball Valve Works

3-Way Ball Valve Flow Patterns:
L-Port vs T-Port

3-way ball valves are typically manufactured with two internal flow patterns: L-Port and T-Port. The choice between these configurations determines whether the valve is used for diverting flow, mixing flow, or isolating different pipeline directions.

L-Port valves are primarily designed for flow diversion. In most positions, the valve connects two ports while isolating the third port, making it ideal for switching flow between two pipelines.

T-Port valves provide more flexible flow control. Depending on the ball orientation, they can mix two inlet streams, divert flow to different outlets, or allow limited three-port communication. However, not every T-Port position guarantees bubble-tight shutoff between all ports.

Selection Rule for Engineers

• L-Port: Best suited for diverting service. One inlet can be switched between two outlet pipelines while the unused port remains fully shut off.

• T-Port: Suitable for mixing or diverting service. Two inlet streams can be combined or redirected to different outlets depending on the valve position.

If you are unsure which flow configuration fits your piping layout, send us your piping schematic and our engineers will recommend the correct flow pattern.

FAQ – L-Port vs T-Port Ball Valves

Q1 . What is the difference between L-Port and T-Port ball valves?
 
L-Port ball valves are designed primarily for diverting flow between two outlets while shutting off the third port. 
T-Port ball valves provide more flexible flow paths, allowing mixing, diverting, or partial three-port flow depending on the valve position.
 

Q2. Can a T-Port ball valve shut off all three ports?

In most configurations, T-Port ball valves do not provide bubble-tight shutoff between all three ports simultaneously.
They are typically used for mixing or diverting services rather than full isolation.

Q3. When should I choose an L-Port instead of a T-Port?

Choose an L-Port valve when the application requires switching flow between two outlets.
Choose a T-Port valve when the process requires mixing or distributing flow across multiple ports.

Contrôle de la qualité

Quality Control for NTVAL 3-Way Ball Valves | API 598 Tested

Every NTVAL 3-way ball valve is inspected and tested in-house with calibrated equipment.

Quality documentation (PMI / hydro & seat test / MTR EN 10204 3.1) is available upon request.

Les tests PMI vérifient le matériau du robinet à boisseau sphérique à trois voies pour confirmer qu'il répond aux bonnes spécifications en matière de résistance et de sécurité.

Test PMI

Every NTVAL 3-way ball valve is inspected and tested in-house with calibrated equipment. Quality documentation (PMI / hydro & seat test / MTR EN 10204 3.1) is available upon request.

Le test d'étanchéité vérifie la capacité du robinet à boisseau sphérique à trois voies à stopper les fuites en fermant tous les chemins possibles que le fluide pourrait emprunter.

Test d'étanchéité

100% hydrostatic shell and seat leakage testing is performed according to API 598 to ensure reliable shut-off. Deliverable: hydro & seat test report (on request).

Les tests de faible émission permettent de déterminer si le robinet à boisseau sphérique à trois voies empêche les fuites de gaz nocifs, ce qui permet de protéger l'environnement et de garantir une utilisation sûre.

Test de faibles émissions

Low emission (fugitive emission) testing can be provided for projects requiring stricter stem sealing control. Deliverable: low emission test certificate/report (on request).

Les tests d'impact consistent à frapper le robinet à boisseau sphérique à trois voies pour voir s'il peut supporter des forces soudaines sans se rompre ou perdre sa fonctionnalité.

Test d'impact

Low emission (fugitive emission) testing can be provided for projects requiring stricter stem sealing control. Deliverable: low emission test certificate/report (on request).

L'inspection des dimensions mesure la taille du robinet à boisseau sphérique à trois voies pour confirmer qu'il s'adaptera sans problème au système prévu.

Inspection des dimensions

Dimensional inspection checks critical dimensions against approved drawings and applicable standards. Deliverable: signed dimensional inspection record (on request).

Le test d'épaisseur de la peinture mesure l'épaisseur du revêtement sur le robinet à boisseau sphérique à trois voies pour confirmer qu'il est bien protégé contre la corrosion et l'usure au fil du temps.

Test d'épaisseur de peinture

Dry film thickness (DFT) is measured to verify coating protection meets the specified requirement. Deliverable: coating thickness report (on request).

Le contrôle par ressuage, également connu sous le nom de ressuage, met en évidence les fissures ou les défauts sur la surface du robinet à boisseau sphérique à trois voies qui pourraient affaiblir ses performances.

PT (Dye Penetrant Test)

PT (dye penetrant testing) detects surface cracks and defects on castings or weld areas when required. Deliverable: PT / NDE report with acceptance results (on request).

L'inspection des matériaux permet de vérifier que le robinet à boisseau sphérique à trois voies est fabriqué à partir des matériaux appropriés, confirmant ainsi sa qualité et sa fiabilité à long terme.

Inspection des matériaux

Incoming material inspection verifies raw materials against MTR and ensures full traceability. Deliverable: MTR EN 10204 3.1 (or 3.2 when specified).

Manufacturing & Traceability Capabilities

Need special configurations for your project?
Send us your valve specification, P&ID, or piping drawing for engineering review.

3-Way Ball Valve Applications in Key Industries

Typical diverting and mixing duties across chemical, energy, water, and process industries.

La vanne à boisseau sphérique à trois voies supporte divers produits chimiques sans se corroder, ce qui en fait une solution fiable pour contrôler efficacement les flux de produits chimiques.

Traitement chimique

Used for diverting or mixing corrosive media with material/seat options selected for chemical compatibility and leak-tight shutoff.

Le robinet à boisseau sphérique à trois voies dirige le flux de pétrole et de gaz en douceur, réduisant ainsi le risque de fuites et améliorant la sécurité opérationnelle dans les usines pétrochimiques.

Pétrochimie

Applied in oil & gas and petrochemical lines for reliable flow switching, sampling, and bypass service to reduce leakage risk and downtime.

Dans les installations nucléaires, le robinet à boisseau sphérique à trois voies contrôle en toute sécurité la circulation des fluides et des gaz, ce qui est essentiel pour prévenir les situations dangereuses et maintenir les opérations.

Oil, Power & Nuclear

Selected for critical isolation and flow routing where stable sealing, traceable materials, and documented testing are required.

Le robinet à boisseau sphérique à trois voies régule facilement le débit des mélanges de pâte, aidant l'industrie à maintenir une production constante sans colmatage.

Pâte à papier

Handles pulp and fibrous media for diverting and recirculation duties, helping reduce plugging and maintain process continuity.

La vanne à boisseau sphérique à trois voies résiste aux conditions difficiles de l'exploitation minière tout en gérant les matériaux abrasifs, ce qui lui confère des performances durables dans les environnements difficiles.

Exploitation minière

Used in abrasive service for flow diversion and isolation, with robust materials and coatings specified to improve wear resistance.

Le robinet à boisseau sphérique à trois voies offre un contrôle fiable de l'eau et des déchets, aidant les systèmes d'assainissement à fonctionner efficacement sans risque de contamination.

Eau et assainissement

Common in treatment and distribution systems for switching, bypass, and flow balancing while minimizing cross-contamination risk.

Le robinet à boisseau sphérique à trois voies dirige efficacement le flux de vapeur, évitant les blocages et améliorant le contrôle de la pression dans les systèmes de vapeur industriels.

Système de vapeur

Applied in steam and condensate lines for routing and bypass control, with seat/material selection matched to temperature and pressure.

Dans les systèmes d'ébullition, la vanne à bille 3 voies régule les fluides chauds et la vapeur, contribuant à maintenir des températures stables et des opérations sûres pour diverses applications.

Thermal / Boiler System

Used in hot-water and boiler auxiliary systems for diverting and mixing duties to support stable temperature control and safe operation.

Example Application: 3-Way Ball Valve in Chemical Mixing System

In chemical dosing and mixing systems, 3-way ball valves are commonly used to divert or combine process streams.

For example, in a chemical blending skid, a T-Port stainless steel 3-way ball valve can mix two incoming media streams before sending the combined flow to a reactor or storage tank.

Engineers often select T-Port configurations for mixing duty, while L-Port valves are preferred for diverting flow between parallel process lines.

Obtenir un robinet plus polyvalent

Vanne à guillotine

Soupape à bille

Robinet à soupape

Clapet anti-retour

Robinet à boisseau conique

Vanne papillon

Spécifications

Partie principale et matériaux

3-Way Brass Ball Valve

Caractéristiques et avantages

Hot forged brass body for improved mechanical strength
Blow-out proof stem design for safety
PTFE seats for reliable sealing performance
Double O-ring stem sealing system
100% pressure and leakage tested
Lockable lever handle for secure operation

Spécifications

Gamme de tailles : 1/2"~3″ Full Port, extrémités NPT
Type de port : L-Port ou T-Port
Orientation du port : entrée par le bas
Pression nominale : 87 psi CWP (6 bar)
Température maximale : 344°F (173°C)

Industrial 3-Way Ball Valve

Vannes à bille à trois voies :

A 3-way ball valve features three ports and is typically available in two internal configurations: T-port and L-port. These designs allow the valve to perform flow diversion, mixing, or distribution functions within a single valve body.
Idéal pour contrôler et dévier le débit sans avoir besoin d'un té et de plusieurs vannes.
Peut être utilisé comme déviateur, dirigeant le flux d'une entrée vers l'une ou l'autre des deux sorties.
Peut également fonctionner comme un sélecteur d'entrée, où la prise est alimentée par l'un ou l'autre des deux autres ports.

Port en T :

T-port ball valves are commonly used for mixing or distributing flow. Two inlet streams can be combined into a single outlet, or a single inlet can be directed to multiple outlets.
Le sens inverse du flux est également possible, ce qui permet à une source unique de dévier le flux dans deux directions simultanément.
Les robinets à tournant sphérique en T peuvent diriger le débit entre deux orifices seulement, soit vers la gauche, soit vers la droite, soit en ligne droite.
This configuration is widely used in chemical processing, water treatment, and industrial pipeline systems.

Port L :

L-port ball valves are primarily used for flow diversion. The valve directs flow from one inlet to one of two outlets, making it suitable for switching service or directional control.
Only one flow path is open at a time, preventing cross-flow between outlet lines.
A partir d'une seule entrée, le flux peut être dirigé vers deux sorties différentes.
Dans le sens inverse, une seule sortie peut recevoir un débit provenant de l'une ou l'autre des deux entrées.

Stainless Steel 3-Way Ball Valve

Full Port Design with Flanged Connections (2″ – 16″)

Stainless steel 3-way ball valves are designed for flow diversion and mixing in industrial piping systems.
These valves are widely used in chemical processing, water treatment, food and beverage, and other applications requiring corrosion resistance.

Two internal flow patterns are available:

• L-Port Ball: Suitable for flow diversion applications.
• T-Port Ball: Suitable for both mixing and diverting flow.

Air-actuated 3-way stainless steel ball valves can be equipped with pneumatic actuators to automate flow control in industrial systems.

Qu'est-ce qu'un robinet à boisseau sphérique à trois voies ?

A 3-way ball valve is a type of multi-port valve designed to control the direction of fluid flow in a piping system. Unlike standard two-way ball valves, a 3-way valve features three ports, allowing flow to be diverted, mixed, or distributed within a single valve body.

In most industrial applications, the three ports are configured as one inlet and two outlets, or two inlets and one outlet, depending on the required flow pattern. This design allows engineers to simplify piping layouts and reduce the number of valves required in a system.

Flow control is achieved by rotating the internal ball inside the valve body. The ball contains specially machined flow passages that align with the valve ports during operation. By turning the valve handle or actuator, the internal passage redirects the fluid between different ports.

A 3-way ball valve can perform several important functions in process systems:

Flow Diversion – redirect flow from one pipeline to another
Fluid Mixing – combine two inlet streams into a single outlet
Flow Distribution – split one inlet stream into multiple outlets
Shut-off or Isolation – block flow in selected directions

The flow behavior of a 3-way ball valve is mainly determined by the internal ball port design, which is typically manufactured in two configurations:

L-Port Ball
Provides two flow paths and is commonly used for flow diversion, directing one inlet toward either of two outlets.

T-Port Ball
Provides three flow paths and is typically used for flow mixing or distribution, allowing multiple flow directions through the valve.

3-Way Ball Valve Working Principle L-Port (Diverter) vs T-Port (Mixer)

Il existe deux types principaux de robinets à boisseau sphérique à trois voies, chacun fonctionnant différemment d'un robinet à boisseau sphérique standard :

1. Modèle en L (vanne de dérivation)

Fonctionnalité :
Les L-port 3-way ball valve is primarily used for flow diversion. By rotating the valve ball, the flow path is redirected from one outlet port to another.

Contrôle du débit :

In the first position, the inlet is connected to the left outlet.
A 90° rotation redirects the flow to the right outlet.
The valve operates as a quarter-turn device, providing simple and reliable directional control.

Positions de flux :

Only two ports are connected at any time.
The design prevents cross-flow between outlet pipelines.
Commonly used in diverter or switching applications.

2. Modèle en T (vanne de mélange)

Fonctionnalité :
Les T-port 3-way ball valve is designed for mixing or distributing flow. It allows multiple flow paths inside the valve body.

Contrôle du débit :

Two inlet streams can be combined into a single outlet.
A single inlet can also be distributed to two outlets simultaneously.

Modèles de flux :

Multiple ports can be connected depending on the ball orientation.
The valve can operate in mixing, distributing, or straight-through flow modes.

Application Characteristics:

Suitable for process mixing and multi-directional flow control.
Widely used in chemical processing, water treatment, and industrial piping systems.

Main Characteristics of 3-Way Ball Valves

3-way ball valves are designed to control flow direction in piping systems by using a rotating ball with internal flow passages. Compared with conventional two-way valves, a 3-way valve can perform multiple flow control functions within a single valve body.

À quoi sert le robinet à boisseau sphérique à trois voies ?

A 3-way ball valve is widely used in industrial piping systems to control the direction of fluid flow.
Depending on the internal ball configuration, the valve can perform functions such as diverting flow, mixing media, or distributing fluid to multiple pipelines.

Guide de sélection des robinets à tournant sphérique à 3 voies

Les principaux éléments à prendre en compte lors de la sélection de la vanne adaptée à votre application sont les suivants :

Déterminer le fluide à utiliser dans le système, ce qui est nécessaire pour choisir le joint de soupape adéquat et équivalent.
Déterminer la pression nominale du système sur lequel la soupape doit être montée.
Connaître la température à laquelle le système fonctionne habituellement.
Vérifier le type de connexion pour savoir si la vanne est compatible avec la tuyauterie ou non.
Le matériau utilisé pour le corps de la vanne doit être conforme aux lignes de process existantes et adapté à la température et à la pression du process.
Déterminer le mécanisme de fonctionnement de la vanne et s'il est possible de l'appliquer au système existant.

Robinet à boisseau sphérique à 3 voies et robinet à boisseau sphérique à 2 voies

Fonctionnalité	Robinet à boisseau sphérique à 3 voies	Robinet à boisseau sphérique à 2 voies
Ports	Three ports	Two ports
Function	Flow diversion or mixing	On/off isolation
Contrôle du débit	Redirect or combine flow	Straight flow only
Valve Types	L-Port / T-Port	Standard Ball
Applications typiques	Mixing, diverting, bypass systems	Shut-off and isolation

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Spécifications du robinet à boisseau sphérique à 3 voies

Matériaux

3-way ball valves are available in multiple material options to meet different process requirements:

• Stainless steel (CF8 / CF8M / SS304 / SS316)
• Carbon steel (WCB)
• Alloy steel for severe service

Material selection depends on media type, corrosion conditions, and operating environment.

Taille et dimensions des vannes

NTVAL 3-way ball valves are available in a wide range of sizes:

• Size Range: 1/2″ – 10″ (DN15 – DN250)
• Connection Types: Flanged / Threaded / Welded
• Flow Configuration: L-Port / T-Port

These options allow the valve to fit various pipeline systems and flow control requirements.

Pression et température nominales

3-way ball valves are designed for demanding industrial environments:

• Pressure Rating: ANSI Class 150 – 600
• Temperature Range: -196°C to 450°C
• Seat Options: PTFE / RPTFE / PEEK / Metal Seat

These specifications ensure safe and reliable operation under different process conditions.

Key Features of 3 Way Ball Valve

Facilité d'utilisation

3-way ball valves use a quarter-turn mechanism that allows quick and simple operation. • Fast opening and closing • Low operating torque • Suitable for manual or automated control

Conception conviviale

The compact structure of the valve simplifies installation and maintenance. • Compact body design • Easy actuator integration • Reduced maintenance requirements

Étanchéité

3-way ball valves provide reliable sealing performance. • Tight shut-off capability • Stable sealing under pressure • Suitable for various industrial media.

Advantages of Using 3-Way Ball Valve

Augmenter la polyvalence

A single 3-way valve can perform multiple flow functions: • Flow diversion • Fluid mixing • Flow distribution This flexibility makes it suitable for many industrial systems.

Réduit les vannes multiples

By integrating multiple flow paths in one valve body, a 3-way ball valve can replace several traditional valves. • Simplifies pipeline design • Reduces installation space • Lowers system cost

Amélioration des performances

The optimized flow control improves overall system performance. • Efficient flow regulation • Reduced pressure loss • Reliable long-term operation

Applications du robinet à boisseau sphérique à 3 voies

Industrie du pétrole et du gaz

Les robinets à boisseau sphérique à 3 voies de NTVAL jouent un rôle essentiel dans le contrôle du débit des eaux usées. le pétrole brut, Ils sont utilisés dans les pipelines et les raffineries pour inverser le sens de l'écoulement ou mélanger différents flux. Ils sont utilisés dans les pipelines et les raffineries pour inverser le sens de l'écoulement ou pour mélanger différents flux. Leur capacité à fonctionner sous haute pression et à des températures extrêmes les rend indispensables dans ce domaine. Leur conception durable leur permet de fonctionner longtemps dans des environnements difficiles.

Eau et assainissement

Les robinets à boisseau sphérique à 3 voies contrôlent le débit de l'eau et des eaux usées à travers différents processus de traitement. Elles permettent aux opérateurs de passer facilement d'une voie d'écoulement à l'autre, ce qui les rend idéales pour détourner l'eau et gérer plusieurs canalisations. Leur conception durable et leur capacité à gérer de grands volumes de fluide en font des éléments essentiels de la gestion de l'eau.