RESILIENT SEATED · WAFER
XD371
Wafer Signal Butterfly Valve
Fire protection and water networks. Final configuration is selected against the actual medium, temperature, pressure, materials and control requirements.
KEY SPECIFICATIONS
Confirmed product definition
PRODUCT OVERVIEW
Built around the stated duty
XD371 is a wafer butterfly valve with worm gear with position signal operation. Fire protection and water networks.
The final order configuration is confirmed against project conditions and approved technical documents.
SELECTION NOTES
Information to confirm
- Medium and operating temperature
- DN, pressure class and flange or end standard
- Body, disc, stem and seat materials
- On/off or modulating duty and required fail position
- Quantity, documentation and delivery requirements
STRUCTURE
Construction details
DIMENSIONS
Dimension and connection drawings
Use the approved order drawing for final installation.
TECHNICAL DATA
Specifications and dimensions
Final dimensions and configuration must follow the approved order drawing.
Technical Specifications
| Model | XD371 |
|---|---|
| Nominal diameter | DN50–400 |
| Nominal pressure | PN1.0 / 1.6 / 2.5 MPa |
| Seat test pressure | 1.1 times nominal pressure |
| Shell test pressure | 1.5 times nominal pressure |
| Operating temperature | -10°C–80°C |
| Connection | Wafer |
| Actuation | Worm gear with position signal |
| Sealing | Resilient seated |
| Typical service | Fire-protection and water systems |
| Suitable media | Water, oil and gas |
Materials / Performance Data
| Body | Ductile iron, Cast steel |
|---|---|
| Stem | SUS410 / SUS316 |
| Disc | Coated ductile iron, Stainless steel |
| Seat | EPDM, PTFE |
| Bushing | Bronze, PTFE |
| Seal ring | NBR, EPDM |
| Round gasket | SUS316 / Brass |
| Split ring | SUS316 / Brass |
| Retaining ring | Spring steel |
Dimensions and Connection Data 1
| DN | L1 | L2 | L3 | H1 | H | Φ1 |
|---|---|---|---|---|---|---|
| 50 | 43 | 32 | 245 | 70 | 268 | 152 |
| 65 | 46 | 47 | 245 | 76 | 287 | 152 |
| 80 | 46 | 65 | 245 | 86 | 309 | 152 |
| 100 | 52 | 91 | 245 | 104 | 342 | 152 |
| 125 | 56 | 112 | 245 | 118 | 376 | 152 |
| 150 | 56 | 146 | 245 | 132 | 410 | 152 |
| 200 | 60 | 194 | 400 | 167 | 495 | 300 |
| 250 | 68 | 242 | 400 | 198 | 565 | 300 |
| 300 | 68 | 292 | 400 | 239 | 849 | 305 |
| 350 | 78 | 325 | 400 | 267 | 985 | 305 |
| 400 | 102 | 380 | 431 | 309 | 1109 | 290 |
APPLICATIONS
Use only after duty review
Fire protection and water networks. Media compatibility, temperature limits and actuation details must match the selected configuration.
XD371 INQUIRY