METAL SEATED · WAFER
D73H
Wafer High-Temperature Butterfly Valve
High-temperature industrial media. Final configuration is selected against the actual medium, temperature, pressure, materials and control requirements.
KEY SPECIFICATIONS
Confirmed product definition
ModelD73H
Sealing / familyMetal seated
ConnectionWafer
ActuationLever
PRODUCT OVERVIEW
Built around the stated duty
D73H is a wafer butterfly valve with lever operation. High-temperature industrial media.
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 | D73H |
|---|---|
| Nominal diameter | DN50–2000 |
| Nominal pressure | PN0.6 / 1.0 / 1.6 / 2.5 MPa |
| Seat test pressure | 0.66 / 1.1 / 1.76 / 2.75 MPa |
| Shell test pressure | 0.9 / 1.5 / 2.4 / 3.75 MPa |
| Operating temperature | Carbon steel -29°C–425°C；Stainless steel -40°C–650°C |
| Connection | Wafer |
| Actuation | Lever operated |
| Sealing | Metal seated |
| Typical service | High-temperature industrial media |
| Suitable media | Water, air, natural gas, oil and mildly corrosive fluids |
| Leakage rate | In accordance with GB/T 13927 |
Materials / Performance Data
| Body | WCB, Alloy steel, Stainless steel, QT450-10 |
|---|---|
| Disc | WCB, Alloy steel, Stainless steel, QT450-10 |
| Stem | 2Cr13Stainless steel, Alloy steel |
| Seal ring | Stainless steelRing |
| Packing | Flexible graphite |
Dimensions and Connection Data 1
| DN | L | L2 | H | H1 | D1 | Z-Φd |
|---|---|---|---|---|---|---|
| 50 | 43 | 265 | 350 | 112 | 125 | 4-18 |
| 65 | 46 | 265 | 370 | 115 | 145 | 4-18 |
| 80 | 49 | 320 | 380 | 120 | 160 | 8-18 |
| 100 | 56 | 320 | 420 | 138 | 180 | 8-18 |
| 125 | 64 | 340 | 460 | 164 | 210 | 8-18 |
| 150 | 70 | 390 | 555 | 175 | 240 | 8-22 |
Dimensions and Connection Data 2
| DN | D1 | Z-Φd |
|---|---|---|
| 50 | 125 | 4-18 |
| 65 | 145 | 4-18 |
| 80 | 160 | 8-18 |
| 100 | 190 | 8-22 |
| 125 | 220 | 8-26 |
| 150 | 250 | 8-26 |
APPLICATIONS
Use only after duty review
High-temperature industrial media. Media compatibility, temperature limits and actuation details must match the selected configuration.
D73H INQUIRY