Stainless Steel Sanitary Polished Welded Duckbill Butterfly Valve

The working principle of the stainless steel sanitary welded duckbill butterfly valve is to control the on-off or flow regulation of pipeline media by rotating the valve plate. The specific steps are as follows: When the valve is closed, the valve plate (butterfly plate) rotates 90° under the drive of the drive device (manual, pneumatic or electric), and fits tightly with the duckbill elastic valve seat to form a dead angle seal and block the flow of the medium; when the valve is opened, the valve plate rotates with the valve stem to a position parallel to the pipeline, allowing the medium to pass smoothly. Its specially designed duckbill valve seat can adaptively deform when under pressure to enhance sealing, which is especially suitable for fluid control with high cleanliness requirements.

Stainless steel sanitary welded duckbill butterfly valve options:

Drive mode: manual, pneumatic, electric

Seal material: EPDM, PTFE, silicone (FDA compliant)

Connection method: welding, quick-release, flange

Control method: switch type, regulating type

Surface treatment: polishing, sandblasting

Special customization: add positioner, anti-mixing function, etc.

Valve parts

• The stainless steel sanitary welded duckbill butterfly valve adopts a unique self-cleaning design. The contact surface of the valve plate and the valve seat is designed as a self-cleaning structure, which reduces the problem of fouling.
• The stainless steel sanitary welded duckbill butterfly valve adopts a low pressure difference design, which allows it to open stably under low flow and low pressure conditions.
• The special leak-proof structure of the stainless steel sanitary welded duckbill butterfly valve body and valve stem effectively reduces the risk of valve leakage under high pressure, and is suitable for occasions requiring high sealing and leak-proof properties.
• The stainless steel sanitary welded duckbill butterfly valve seat can be fine-tuned according to working conditions to optimize the sealing performance.
• The inner and outer surfaces of the stainless steel sanitary welded duckbill butterfly valve adopt a highly polished process to reduce the contact friction between the fluid and the valve body and prevent the growth of bacteria and impurities.
• The stainless steel sanitary welded duckbill butterfly valve adopts a quick-disassembly structure design, allowing users to quickly disassemble and clean it.

Stainless steel sanitary welded duckbill butterfly valve is widely used in the following industries, food and beverage industry: used for aseptic filling, CIP cleaning system, to ensure sanitation and safety. Pharmaceutical industry: suitable for purified water and liquid medicine delivery, in line with GMP standards. Bioengineering: used for fermentation and cell culture pipelines to prevent contamination. Dairy industry: milk and yogurt production lines, corrosion-resistant and easy to clean. Cosmetics industry: high-purity raw material transportation to avoid chemical residues. Semiconductor industry: ultrapure water system to meet dust-free and clean requirements.