The three-piece construction provides convenient access to the Sanitary Stainless Steel Manual 3-Piece Butterfly Valve body and internal sealing components, which is useful for inspection, cleaning, seal replacement, and routine maintenance. The stainless steel construction and sanitary connection options make the valve suitable for clean processing environments where hygiene and reliable operation are important.
The valve is commonly used in pharmaceutical, biotechnology, food and beverage, dairy, cosmetic, and other sanitary processing systems for liquid transfer, line isolation, draining, and flow adjustment.
The three-piece construction allows the valve body and internal components to be accessed more conveniently during maintenance. Compared with structures that are more difficult to disassemble, this configuration is suitable for processing lines requiring regular inspection, cleaning, or replacement of sealing components.
The manual locking handle provides direct control over the valve position without requiring compressed air, electrical wiring, or pneumatic control equipment. Operators can select fully open, fully closed, or intermediate positions according to the process requirements.
The valve is manufactured using stainless steel components suitable for hygienic process applications. The smooth internal structure helps reduce media accumulation and supports easier cleaning in sanitary piping systems.
The Sanitary Stainless Steel Manual 3-Piece Butterfly Valve uses a quarter-turn operating mechanism. Rotating the handle drives the butterfly disc through approximately 90°, allowing the operator to switch between open and closed positions or adjust the flow passage at an intermediate position.
AVM provides different connection configurations to accommodate various piping layouts, including clamp, welding, threaded, and three-piece connections. Different dimensional standards can be selected according to the existing process pipeline.
The manual butterfly valve controls the process media through the rotation of an internal disc.
When the handle rotates the disc so that it is aligned with the pipeline, the valve is in the open position and allows the media to pass through. As the disc rotates away from the flow direction, the available flow area decreases and the flow can be adjusted. When the disc reaches the closed position, it presses against the sealing structure to isolate the pipeline.
The locking mechanism helps maintain the selected position during operation, reducing unintended movement caused by vibration or normal process conditions.
The manual version is particularly suitable for process lines where operators need direct access to the valve and automated actuation is not necessary.
The handle can be used for isolation during equipment maintenance, process adjustment, cleaning, draining, or line switching. Since the valve does not require an external pneumatic supply, its installation is comparatively straightforward and can reduce the number of auxiliary components around the pipeline.
For facilities with many individual sanitary valves, the manual configuration can also be used at locations where frequent remote operation is not required.
The valve can be installed in pharmaceutical liquid transfer lines, buffer preparation systems, bioprocess equipment, sterile process piping, high-purity fluid systems, and clean utility lines where hygienic operation and reliable manual isolation are required.
Typical applications include dairy processing, milk and yogurt production, beverage production, juice processing, food ingredient transfer, brewery systems, and liquid food processing pipelines.
The valve is suitable for liquid and semi-liquid product transfer systems used for shampoo, lotion, cream, cosmetic ingredients, and other personal care products.
It can also be used in sanitary water lines, cleaning systems, process skids, storage and transfer equipment, and other hygienic piping applications requiring manual flow control or shut-off.
The valve consists of a three-piece stainless steel valve body, butterfly disc, valve shaft, sealing components, and manual locking handle. The modular body structure provides access to the internal valve components for inspection and maintenance.
Different connection configurations can be selected according to the pipeline design, including clamp, welded, threaded, and three-piece sanitary connections.
| Item | Specification |
| Product Type | Sanitary Stainless Steel Manual 3-Piece Butterfly Valve |
| Valve Structure | Three-Piece Butterfly Valve |
| Operation | Manual |
| Material | Stainless Steel |
| Control Method | Manual Locking Handle |
| Rotation Angle | 90° |
| Connection Type | Clamp / Welding / Threaded / Three-Piece |
| Connection Standards | DIN / SMS / 3-A / ISO |
| Application | Hygienic Fluid Shut-Off and Flow Adjustment |
| Suitable Industries | Pharmaceutical / Biotechnology / Food & Beverage / Dairy / Cosmetics |
| Size | A | B | L | H |
| DN20 | 20 | 34 | 66 | 113.5 |
| DN25 | 26 | 50.5 | 66 | 113.5 |
| DN32 | 32 | 50.5 | 66 | 125.5 |
| DN40 | 38 | 50.5 | 68 | 132.5 |
| DN50 | 50 | 64 | 70 | 145 |
| DN65 | 66 | 91 | 72 | 163 |
| DN80 | 81 | 106 | 92 | 190 |
| DN100 | 100 | 119 | 98 | 210 |
| DN125 | 125 | 155 | 106 | 239 |
| DN150 | 150 | 183 | 120 | 288 |
| Size | A | B | L | H |
| 1" | 22.1 | 50.5 | 66 | 113.5 |
| 1.5" | 34.8 | 50.5 | 68 | 132.5 |
| 2" | 47.5 | 64 | 70 | 145 |
| 2.5" | 60.2 | 77.5 | 72 | 163 |
| 3" | 72.9 | 91 | 80 | 190 |
| 4" | 97.38 | 119 | 94 | 210 |
| Size | A | S | L | H |
| DN20 | 22 | 23 | 1.5 | 44 |
| DN25 | 28 | 29 | 1.5 | 44 |
| DN32 | 34 | 35 | 1.5 | 48 |
| DN40 | 40 | 41 | 1.5 | 48 |
| DN50 | 52 | 53 | 1.5 | 48 |
| DN65 | 70 | 2 | 50 | 163 |
| DN80 | 85 | 2 | 56 | 190 |
| DN100 | 104 | 2 | 60 | 210 |
| DN125 | 129 | 2 | 70 | 239 |
| DN150 | 154 | 2 | 80 | 288 |
| Size | A | S | L | H |
| 1" | 25.4 | 1.25 | 44 | 113.5 |
| 1.5" | 38.1 | 1.25 | 48 | 132.5 |
| 2" | 50.8 | 1.25 | 48 | 145 |
| 2.5" | 63.5 | 1.5 | 50 | 163 |
| 3" | 76.2 | 1.6 | 56 | 190 |
| 4" | 101.6 | 2 | 60 | 210 |
| Size | A | B | L | H |
| DN20 | 20 | RD44×1/6" | 66 | 113.5 |
| DN25 | 26 | RD52×1/6" | 66 | 113.5 |
| DN32 | 32 | RD58×1/6" | 66 | 125.5 |
| DN40 | 38 | RD65×1/6" | 68 | 132.5 |
| DN50 | 50 | RD78×1/6" | 70 | 145 |
| DN65 | 66 | RD95×1/6" | 72 | 163 |
| DN80 | 81 | RD110×1/4" | 92 | 190 |
| DN100 | 100 | RD130×1/4" | 98 | 210 |
| DN125 | 125 | RD160×1/4" | 106 | 239 |
| DN150 | 150 | RD190×1/4" | 120 | 288 |
| Size | S | B | L | H |
| DN25 | 1.5 | 29 | 100 | 113.5 |
| DN32 | 1.5 | 35 | 100 | 125.5 |
| DN40 | 1.5 | 41 | 100 | 132.5 |
| DN50 | 1.5 | 53 | 110 | 145 |
| DN65 | 2 | 70 | 114 | 163 |
| DN80 | 2 | 85 | 130 | 190 |
| DN100 | 2 | 104 | 135 | 210 |
| DN125 | 2 | 129 | 160 | 239 |
| DN150 | 2 | 154 | 180 | 288 |
AVM Sanitary Stainless Steel Manual 3-Piece Butterfly Valve combines direct mechanical operation with a maintenance-accessible three-piece construction. It is suitable for sanitary pipelines where operators require straightforward valve positioning, reliable isolation, and convenient access to internal components.
The available clamp, welded, threaded, and three-piece configurations provide flexibility when matching existing sanitary piping systems. Its manual operating method also eliminates the need for compressed air and pneumatic control accessories at installation points where automated operation is unnecessary.
The standard production lead time is 2–4 weeks. The actual schedule depends on order quantity, valve specifications, connection type, and material availability. Urgent requirements should be confirmed with AVM before ordering.
The standard payment terms are 30% deposit with the remaining 70% paid before shipment by T/T or L/C. Small-value orders may require full payment before production.
The valve is securely packed in suitable paper and wooden cases for international transportation. The packaging helps protect the stainless steel body, connection ends, handle, and sealing components during handling and shipment.
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