Butt Weld Butterfly Valve
The Sanitary Welded Butterfly Valve is engineered for permanent pipeline installations where leak-free, long-service joints are essential. Both ends are butt-welded directly into the pipeline, eliminating the need for gaskets or clamp connections and providing maximum structural integrity. The internal wetted surface is polished to hygienic standards to ensure product purity.
【Size】DN15～DN200
【Dimension】Φ19～Φ219
【Standard】DIN, ISO, 3A, GMP, ASME BPE
【Surface Roughness】Ra≤0.8μm
【Sealing】EPDM, Silicone, PTFE, FKM
Key Features
• Welded end connections provide superior leak-tight performance.
• No external sealing points reduces contamination risk.
• Slim body profile minimizes installation space.
• Mirror-polished wetted surfaces meet 3-A and FDA standards.
• Compatible with CIP/SIP protocols.
• Available in 304 and 316L stainless steel to suit various process media.
Technical Specifications
• Design Standards: DIN, SMS, ISO, 3A.
• Max Pressure: 10 bar (145 psi).
• Operating Temperature: -10°C to +120°C.
• Surface Roughness: Ra ≤ 0.8μm.
• Valve Body: SS304/SS316L/2205 stainless steel.
• Seal Material: EPDM, Silicone, Viton, PTFE.
• Certifications: FDA compliant.
| Size | A | D | O | B | C | |
| 19(3/4″) | 52 | 16 | 105 | 105 | 126 | |
| 25(1″) | 52 | 22 | 105 | 105 | 126 | |
| 32(11/4″) | 52 | 29 | 109 | 109 | 126 | |
| 38(11/2″) | 52 | 35 | 115 | 115 | 126 | |
| 45(13/4″) | 52 | 41 | 120 | 120 | 126 | |
| 51(2″) | 52 | 48 | 129 | 129 | 126 | |
| 57(21/4″) | 52 | 50 | 125 | 125 | 126 | |
| 63(21/2″) | 52 | 55 | 142 | 142 | 126 | |
| 76(23/4″) | 56 | 72 | 155 | 155 | 140 | |
| 89(31/2″) | 60 | 85 | 170 | 170 | 157 | |
| 102(4″) | 60 | 97 | 182 | 182 | 162 | |
| 108(41/4″) | 60 | 102 | 185 | 185 | 162 | |
Applications
• Dairy processing plants.
• Breweries and distilleries.
• Beverage and juice production lines.
• Pharmaceutical manufacturing.
• Biotechnology and fermentation processes.
• Permanent hygienic piping systems requiring welded joints.
