Gate Valve Flange
Category: Stainless Steel Valve
Overview
Stainless steel flanged gate valves provide full-bore shut-off isolation for larger pipe diameters where threaded connections are impractical or not rated for the required pressure. Bolted flange connections allow removal and replacement without disturbing the pipe, a critical requirement in process plants with planned maintenance intervals. Available with ANSI B16.5, JIS B2210, or DIN flange drilling patterns to match all major piping standards, with ratings from Class 150 to Class 300.
Technical Specifications
| Body / Bonnet Material | SUS304 / SUS316 / SUS316L |
| Wedge Material | SUS316 solid/flexible wedge |
| End Connection | ANSI B16.5 / JIS B2210 / DIN PN16–PN40 |
| Pressure Rating | PN16 – PN40 / Class 150 – Class 300 |
| Temperature Range | -196°C to +400°C |
| Size Range | DN50 – DN600 (2″ – 24″) |
| Stem Type | OS&Y rising stem (handwheel or gearbox) |
| Packing | PTFE / Graphite |
| Shut-off Class | Class VI |
| Test Standard | API 598 / EN 12266-1 |
Applications
- Large-bore process line isolation
- cooling water and chilled water headers
- steam main isolation
- chemical and petrochemical process piping
- seawater and marine systems
- water treatment plant main lines
Key Features
- Full-bore design — no restriction in open position
- flange connection — removable without pipe cutting
- OS&Y rising stem with gearbox option for large sizes
- Class VI bubble-tight shut-off
- multiple flange standards (ANSI/JIS/DIN)
- SUS316L for chloride and corrosive media
For technical inquiries & custom orders: supakorn@stico.co.th | Tel: 02-035-9589
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