METAL SEATED · FLANGED
D343H
Triple-Offset Flanged Metal-Seated Butterfly Valve
Industrial isolation. Final configuration is selected against the actual medium, temperature, pressure, materials and control requirements.
KEY SPECIFICATIONS
Confirmed product definition
ModelD343H
Sealing / familyMetal seated
ConnectionFlanged
ActuationWorm gear
PRODUCT OVERVIEW
Built around the stated duty
D343H is a flanged butterfly valve with worm gear operation. Industrial isolation.
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 | D343H |
|---|---|
| Nominal diameter | DN40–2000 |
| Nominal pressure | PN0.6–4.0MPa |
| Operating temperature | -29–425°C |
| Connection | Flanged |
| Actuation | Worm gear |
| Sealing | Triple offset metal seated |
| Suitable media | Water, steam and oil and other available options |
Materials / Performance Data
| Body | WCB, WC6, CF8, CF8M, CF3, CF3M |
|---|---|
| Disc | WCB+ENP, WC6+STL, CF8+STL, CF8M+STL and other available options |
| Stem | 2Cr13, 25Cr2MoV and stainless steel |
| Seat / sealing pair | Stainless steel, Stellite and other available options; metal sealing configuration |
| Packing | Flexible graphite or PTFE (configured for material and temperature) |
Dimensions and Connection Data 1
| DN | L | D | D1 | z-Φd |
|---|---|---|---|---|
| 100 | 127 | 220 | 180 | 8-Φ18 |
| 125 | 140 | 250 | 210 | 8-Φ18 |
| 150 | 140 | 285 | 240 | 8-Φ22 |
| 200 | 152 | 340 | 295 | 12-Φ22 |
| 250 | 165 | 405 | 355 | 12-Φ26 |
| 300 | 178 | 460 | 410 | 12-Φ26 |
| 350 | 190 | 520 | 470 | 16-Φ26 |
| 400 | 216 | 580 | 525 | 16-Φ30 |
| 450 | 222 | 640 | 585 | 20-Φ30 |
| 500 | 229 | 715 | 650 | 20-Φ33 |
| 600 | 267 | 840 | 770 | 20-Φ36 |
APPLICATIONS
Use only after duty review
Industrial isolation. Media compatibility, temperature limits and actuation details must match the selected configuration.
D343H INQUIRY