Sanitary Stainless Steel Three-way Butterfly Valve Selection And Design Features

For water and oil processing with threaded connections, select an L-type sanitary butterfly valve for flow diversion, or a TT-type configuration for flow mixing. L-type directs flow from one inlet to either outlet at 90° and provides complete shut-off. TT-type enables interconnection among all three ports for combining or splitting flow. Available in 1" to 4" with SS304/SS316L, EPDM/silicone/NBR seals, and threaded connections for 0-10 bar at -20°C to 120°C.

L-Type Configuration: Flow Diversion

The L-type valve features a flow path connecting the common port to one of two outlets at a time. Rotating the handle changes the flow path between ports. This diverts product between processing lines or alternates between fill stations. The closed position provides complete shut-off, allowing isolation of connected equipment for cleaning or maintenance.

L-type flow paths:

• Common inlet to outlet 1 (position 1)

• Common inlet to outlet 2 (position 2)

• Complete shut-off in third position

For the tri clamp valve, L-type designs are available with threaded connections. The sanitary butterfly valve with L-port is specified when flow requires direction change without mixing.

TT-Type Configuration: Flow Mixing and Merging

The TT-type valve connects any two or all three ports simultaneously. This enables mixing of two incoming streams into one outlet or splitting one inlet into two outlets. Unlike L-type, TT-type valves cannot provide complete shut-off in a single position. The TT-type configuration suits applications requiring product blending, such as combining different batches or merging multiple supply lines.

TT-type flow patterns:

• Mixing: Two inlets → one common outlet

• Diverting: One inlet → two outlets

• Full opening: All three ports interconnected

The 3 tri clamp butterfly valve with TT-type is selected when blending or combining product streams is required.

Material and Specifications

SS316L provides enhanced corrosion resistance for oil applications, while SS304 offers a cost-effective option for water service. EPDM suits water, NBR provides oil resistance, and Silicone handles higher temperatures.

Design Features for Sanitary Service

Internal surfaces are polished to Ra ≤ 0.8μm, preventing bacterial adhesion. Threaded connections enable permanent, leak-resistant installation. The three-piece body construction allows inline maintenance without removing the valve from the pipeline.

Key design features:

• 🔄 Full-port design for minimal pressure drop

• 🔒 Encapsulated seat eliminates fluid entrapment

• 🧼 Surface finish prevents bacterial adhesion

• 🔧 Threaded connections for vibration-prone installations

• ⚙️ Blow-out proof stem for operational safety

Actuation and Performance

Manual lever operation suits infrequent flow changes. Pneumatic actuation enables automated control in production lines. The ISO 5211 mounting pad allows direct installation of actuators and positioners. The full-port design ensures minimal flow restriction, reducing pumping energy requirements.

Installation and Selection

Selection considerations:

1. L-type for diversion; TT-type for mixing

2. SS316L for oil; SS304 for water

3. EPDM for water; NBR for oil; Silicone for high-temperature

4. Confirm thread size matches existing pipework

5. Verify pressure rating meets system requirements

The tri clamp butterfly valve with L-type provides simple diversion, while the sanitary 3-way valve with TT-type enables mixing. The tri clamp valve and 3 tri clamp butterfly valve offer flexible flow control for processing lines. The triclamp butterfly valve series provides reliable flow routing for sanitary applications.

Sanitary Stainless Steel 3 Way Butterfly Valve

• We can supply Sanitary Butt-Weld Butterfly Valve, Sanitary Tri-Clamp Butterfly Valve, Hygienic Male Thread Butterfly Valve, Sanitary Pneumatic Butterfly Valve, Hygienic Electric Butterfly Valve. For the manual handle, we have Stainless Steel Pull Handle, Plastic Multi Position Gripper Handle and Stainless Steel Multi Position Handle.
• The Butterfly valve body and disk are all made from full CNC machined, high grade level polish.
• All of the products have been press tested before shipping.
• It is necessary you specify at the time when orders be placing if heat numbers and MTR's are required.
• EPDM, Silicon and Viton seats are available for installing in our butterfly valves which are suitable for many applications in such as food, dairy, beverage, meat processing, chemical, and many other industries.

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