一.Product Introduction
The D71X – 10 10Q 16 16Q Wafer Centerline Butterfly Valve is a high – performance valve specifically designed for water – related applications. It can operate at a medium temperature of ≤ 80 °C and is ideal for controlling the flow of water. With a size range of DN40 – 1000 and a pressure rating of 1.0 – 1.6 mpa, this valve meets various pipeline requirements. The valve body is made of gray cast iron or nodular cast iron, ensuring durability and reliability. Featuring a wafer – type connection method, it enables easy and secure installation in pipeline systems.
二.Product Features
1.Temperature Suitability: Capable of operating with a medium temperature of ≤ 80 °C, making it suitable for water – based applications within this temperature range.
2.Medium Specialization: Specifically designed for controlling water, ensuring optimal performance in water pipeline systems.
3.Wide Size Range: Available in a size range of DN40 – 1000, fitting different pipeline dimension needs.
4.Reliable Pressure Rating: Operates at a pressure of 1.0 – 1.6 mpa, ensuring stable performance under standard water pipeline pressure conditions.
5.Durable Valve Body Material: The valve body is made of gray cast iron or nodular cast iron, providing excellent strength and longevity.
6.Wafer – Type Connection: Adopts a wafer – type connection method, facilitating easy and secure installation in pipeline systems.
三.Technical data
| Part Name | material |
| Valve body | Grey cast iron / nodular cast iron |
| Butterfly | Ductile iron / SS |
| Valve shaft | Carbon steel |
| Sealing ring | EPDM |
| model | Nominal pressure (mpa) |
Test pressure (mpa) | proper temperature | Applicable medium | |
| Strength (water) | Sealed (water) | ||||
| D71X-10 | 1.0 | 1.50 | 1.10 | ≤80 ℃ | water |
| D371X-10 | |||||
| D71X-16 | 1.6 | 2.40 | 1.80 | ≤80 ℃ | water |
å››.The main shape and connection size
| model | Nominal diameter (mm) |
Size (mm) | ||||
| φ | H | B | Z-φd | L | ||
| D71X-10 / 16 | 40 | 110 | 160 | 234 | 4-φ21 | 43 |
| 50 | 125 | 170 | 234 | 4-φ23 | 43 | |
| 65 | 145 | 178 | 261 | 4-φ23 | 46 | |
| 80 | 160 | 202 | 261 | 8-φ18 | 46 | |
| 100 | 180 | 222 | 259.5 | 4-φ23 | 52 | |
| 125 | 210 | 233 | 312 | 4-φ23 | 56 | |
| 150 | 240 | 257 | 312 | 4-φ26 | 56 | |
| 200 | 295 | 295 | 360 | 4-φ26 | 60 | |




