RESILIENT SEATED · WAFER
D971X
Electric Wafer Resilient-Seated Butterfly Valve
Remote isolation and control. Final configuration is selected against the actual medium, temperature, pressure, materials and control requirements.
KEY SPECIFICATIONS
Confirmed product definition
ModelD971X
Sealing / familyResilient seated
ConnectionWafer
ActuationElectric
PRODUCT OVERVIEW
Built around the stated duty
D971X is a wafer butterfly valve with electric operation. Remote isolation and control.
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 | D971X |
|---|---|
| Nominal diameter | DN50–2000 / DN50–1600 |
| Nominal pressure | PN0.6 / 1.0 / 1.6 MPa |
| Seat test pressure | 0.66 / 1.1 / 1.76 MPa |
| Shell test pressure | 0.9 / 1.5 / 2.4 MPa |
| Operating temperature | NBR -40°C–90°C；FKM -20°C–200°C |
| Connection | Wafer |
| Actuation | Electric |
| Sealing | Resilient seated |
| Suitable media | Water, air, natural gas, oil and mildly corrosive fluids |
| Leakage rate | In accordance with GB/T 13927 |
Materials / Performance Data
| Body | WCB, QT450-10, HT200, HT250 |
|---|---|
| Disc | WCB, QT450-10, HT200, HT250 |
| Stem | 2Cr13 |
| Seal ring | Oil-resistant NBR |
| Packing | Flexible graphite |
Dimensions and Connection Data 1
| DN | L | H | HO | A | B |
|---|---|---|---|---|---|
| 50 | 43 | 63 | 438 | 125 | 125 |
| 65 | 46 | 70 | 453 | 125 | 125 |
| 80 | 46 | 83 | 478 | 125 | 125 |
| 100 | 52 | 105 | 519 | 125 | 125 |
| 125 | 56 | 115 | 713 | 325 | 245 |
| 150 | 56 | 137 | 749 | 325 | 245 |
| 200 | 60 | 164 | 843 | 325 | 245 |
| 250 | 68 | 206 | 947 | 363 | 313 |
| 300 | 78 | 230 | 1013 | 363 | 313 |
| 350 | 78 | 248 | 1046 | 363 | 313 |
| 400 | 102 | 289 | 1135 | 363 | 313 |
| 450 | 114 | 320 | 1328 | 465 | 439 |
| 500 | 127 | 343 | 1226 | 546 | 481 |
| 600 | 154 | 413 | 1394 | 546 | 556 |
| 700 | 165 | 478 | 1534 | 546 | 556 |
| 800 | 190 | 525 | 1159 | 546 | 556 |
| 900 | 203 | 585 | 1748 | 617 | 706 |
| 1000 | 216 | 640 | 1805 | 632 | 706 |
| 1200 | 254 | 755 | 2035 | 632 | 706 |
Dimensions and Connection Data 2
| DN | PN0.6 D0 | PN0.6 n-Φd | PN1.0 D0 | PN1.0 n-Φd | PN1.6 D0 | PN1.6 n-Φd |
|---|---|---|---|---|---|---|
| 50 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 280 | 8-18 | 295 | 8-22 | 295 | 8-22 |
| 250 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
| 350 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
| 400 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
| 450 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
| 500 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
| 600 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
| 700 | 810 | 24-26 | 840 | 24-30 | 840 | 24-36 |
| 800 | 920 | 24-30 | 950 | 24-33 | 950 | 24-39 |
| 900 | 1020 | 24-30 | 1050 | 28-33 | 1050 | 38-39 |
| 1000 | 1120 | 28-30 | 1160 | 28-36 | 1170 | 28-42 |
| 1200 | 1340 | 32-33 | 1380 | 32-39 | 1390 | 32-48 |
APPLICATIONS
Use only after duty review
Remote isolation and control. Media compatibility, temperature limits and actuation details must match the selected configuration.
D971X INQUIRY