Stainless Steel Sanitary Flanged Butterfly Valve
Product Description
A Stainless Steel Sanitary Flanged Butterfly Valve is a specialized flow control device designed for industries with stringent hygiene requirements, such as food and beverage, pharmaceutical, bioprocessing, and cosmetic manufacturing. It is constructed from stainless steel and features a specific design and surface finish to meet demanding standards for sterility, cleanability, and prevention of product contamination.
Basic Design:
Consists of a valve body, a disc (vane), a stem, and sealing elements. The disc is rotated approximately 90 degrees by the stem to open or close the flow path.
Key Materials:
Body/Disc/Stem: Typically made of 304, 316, or 316L stainless steel (corrosion-resistant, non-toxic).
Seals: Made from FDA-compliant materials like Silicone (SI), EPDM, or PTFE (Teflon) to ensure compatibility with process media and withstand cleaning-in-place (CIP) and sterilization-in-place (SIP) processes.
Connection Type:
Flanged Ends. Provides a secure, leak-proof connection that is easy to assemble and disassemble for cleaning and maintenance.
Bore Size (DN):
Wide range available, commonly from DN25 (1") to DN200 (8") or larger to suit various pipeline flow requirements.
Pressure Rating (PN):
Standard ratings include PN0.6, PN1.0, and PN1.6 MPa.
Surface Finish:
All wetted surfaces are mechanically or electropolished to a highly smooth, mirror-like finish (typically Ra ≤ 0.8 µm or better). This eliminates microscopic pits where bacteria could harbor, prevents material adhesion, and allows for easy, effective cleaning and sterilization.
Core Features:
1. Hygienic, Dead-Space-Free Design: Smooth, contoured flow path prevents product accumulation and ensures full drainability.
2. Compliant with Sanitary Standards: Manufactured in compliance with international sanitary standards such as 3-A, FDA, EHEDG, and GMP.
3. Excellent Sealability: High-quality seals provide reliable bubble-tight shut-off in both flow directions.
4. Ease of Operation: Quick 90° operation requires low torque. Can be fitted with manual levers, pneumatic actuators, or electric actuators for automation.
5. Durable & Easy Maintenance: Simple construction allows for easy disassembly, and seals are replaceable, ensuring a long service life.
Temperature Range:
Varies based on seal material:
- EPDM: Up to ~120°C - 150°C
- Silicone (SI): Up to ~150°C - 200°C
- PTFE: Up to ~200°C
Main Applications:
Food & Beverage Industry (dairy, brewing, sauces, meat processing),
Pharmaceutical Industry (API production, sterile solutions),
Biotechnology, Cosmetics, and any process piping system where hygiene and purity are critical.
Working Principle:
When the handle is rotated, the valve shaft rotates accordingly, thereby driving the valve disc to rotate. When the valve disc rotates to be parallel to the pipeline axis, the valve is in the open state, and the fluid in the pipeline can pass smoothly; when the valve disc rotates to be perpendicular to the pipeline axis, the valve is closed to prevent fluid flow, so as to realize the on-off control and flow regulation of the medium in the pipeline.
Product Parameters
| Body/Disc material |
304;316;316L |
| Seal material |
EPDM;PTFE |
| Basic Design |
body+disc+stem+seal |
| Pressure Rating (PN) |
PN0.6, PN1.0, and PN1.6 MPa |
Detailed Photos






Certifications

About US



FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.