Gate Valve
Category: Stainless Steel Valve
Overview
Stainless steel threaded gate valves provide full-bore shut-off isolation with minimal pressure drop when fully open. The rising OS&Y stem gives clear visual indication of valve position — stem extended = valve open. The solid stainless steel wedge seats against machined body seats providing tight Class VI shut-off. Threaded BSP/NPT ends connect directly to standard pipe fittings without welding or flanged joints, making these valves ideal for smaller-diameter process, utility, and instrumentation lines.
Technical Specifications
| Body / Bonnet Material | SUS304 / SUS316 |
| Wedge Material | SUS304 / SUS316 solid wedge |
| End Connection | Threaded NPT / BSP |
| Pressure Rating | PN20 (Class 150) |
| Temperature Range | -20°C to +200°C |
| Size Range | DN8 – DN100 (1/4″ – 4″) |
| Stem Type | OS&Y rising stem |
| Packing | PTFE / Graphite |
| Shut-off Class | Class VI (bubble-tight) |
| Test Standard | API 598 / EN 12266-1 |
Applications
- Process isolation on chemical and pharmaceutical lines
- utility water and steam services
- food and beverage piping (SUS316)
- instrumentation isolation service
- HVAC chilled and hot water systems
- laboratory and test bench piping
Key Features
- Full-bore design — zero flow restriction when open
- OS&Y rising stem for clear position indication
- bubble-tight Class VI shut-off
- no pipe welding — direct threaded connection
- SUS316 option for chloride environments
- compact body for tight installation spaces
For technical inquiries & custom orders: supakorn@stico.co.th | Tel: 02-035-9589
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