Overview
The VTCON Flanged x Grooved OS&Y Gate Valve (VT-GV-FG-OSY-300) is a 300 PSI ductile iron gate valve for water-based fire protection systems.
It uses a resilient wedge design with an EPDM sealing surface to support reliable shut-off and a straight-through waterway. The outside screw and yoke design provides visible stem movement for clear valve position indication.
This website model corresponds to catalogue model Z481-300. Use the verified dimension table from catalogue P21 and confirm certification coverage before order.
Key Features
• OS&Y resilient wedge gate valve
• Flanged x Grooved connection
• Maximum working pressure: 300 PSI
• Ductile iron body and bonnet
• EPDM resilient sealing
• Straight-through waterway
• Interior and exterior epoxy coating
• Designed for indoor and outdoor fire protection water systems
• Catalogue model and dimensions verified against the uploaded model mapping table
Technical Specifications
| Items | Specification |
|---|---|
| VTCON Model | VT-GV-FG-OSY-300 |
| Original Catalogue Model | Z481-300 |
| Product Name | Flanged x Grooved OS&Y Gate Valve |
| Valve Type | Resilient wedge OS&Y gate valve |
| Connection | Flanged x Grooved |
| Design Standard | ANSI / AWWA C515 |
| Face-to-Face Standard | ASME B16.10 |
| Flange Standard | ASME/ANSI B16.1 Class 125; ASME/ANSI B16.42 Class 150; BS EN 1092-2 PN16; GB/T 9113.1 |
| Items | Specification |
|---|---|
| Groove Standard | ANSI/AWWA C606 or metric groove standard |
| Maximum Working Pressure | 300 PSI |
| Maximum Testing Pressure | 600 PSI |
| Working Temperature | 0–80°C / 32–176°F |
| Body | Ductile iron |
| Disc | Ductile iron with EPDM resilient sealing |
| Coating | Epoxy coating or coating upon request |
| Size Range | 2-1/2"–12" / DN65–DN300 |
| Approvals | UL / CUL / FM and NSF/ANSI 61 & 372 shown for the range |
Product Structure & Dimensions
Flanged x Grooved OS&Y Gate Valve Structure & Dimensions
| Size (in) | DN | L (mm) | H (mm) | Flange D (mm) | Pipe O.D. (mm) | Groove E (mm) | F (mm) | G (mm) |
|---|---|---|---|---|---|---|---|---|
| 2-1/2 | 65 | 190 | 370 | 178 | 73 / 76.1 | 69.1 / 72.3 | 15.9 | 7.9 |
| 3 | 80 | 203 | 420 | 191 | 88.9 | 84.9 | 15.9 | 7.9 |
| 4 | 100 | 229 | 447 | 229 | 114.3 | 110.1 | 15.9 | 9.5 |
| 5 | 125 | 254 | 547 | 254 | 139.7 / 141.3 | 135.5 / 137 | 15.9 | 9.5 |
| 6 | 150 | 267 | 607 | 279 | 165.1 / 168.3 | 160.8 / 163.9 | 15.9 | 9.5 |
| 8 | 200 | 292 | 754 | 343 | 216.3 / 219.1 | 211.6 / 214.3 | 19 | 11.1 |
| 10 | 250 | 330 | 890 | 406 | 273 | 268.3 | 19 | 12.7 |
| 12 | 300 | 356 | 1031 | 483 | 323.9 | 318.3 | 19 | 12.7 |
Dimensions are for reference only. Please contact VTCON for detailed drawings and project requirements.
