| Valve Type: | Exhaust valve | Structure: | Compound |
| Standard: | BS/API/DIN/JIS | Workmanship: | Investment casting |
| Sealing Direction: | Single-directional | Sealing Grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Self-starting |
The compound exhaust valve is designed with a dual-function structure, combining high-speed large-volume air release and continuous micro-exhaust in one unit. It ensures efficient air discharge during pipeline commissioning and stable operation under working pressure.
Combining high-speed massive exhaust and continuous micro exhaust, this equipment replaces two traditional valves, reducing procurement costs and saving installation space. It effectively lowers air resistance and pump energy consumption.
Automatically enters air during pump stops or sudden pressure drops to prevent pipeline deformation. It restrains water hammer phenomena, extending system service life and reducing maintenance costs.
Constructed with a ductile iron body and stainless steel float for superior corrosion resistance. Features a composite seal for zero leakage and supports online maintenance without emptying the pipeline.
| Component | Material |
|---|---|
| Body | Ductile iron |
| Bonnet | Ductile iron |
| Float | Stainless steel |
| Lever Support | Stainless steel |
| Lever | Aluminum Steel |
| Stopper | Aluminum Steel |
| DN | D | D1 | H | N−Φd | |||
| PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | ||
| 50 | 165 | 165 | 125 | 125 | 280 | 4−Φ19 | 4−Φ19 |
| 80 | 200 | 200 | 160 | 160 | 365 | 8−Φ19 | 8−Φ19 |
| 100 | 220 | 220 | 180 | 180 | 395 | 8−Φ19 | 8−Φ19 |
| 150 | 285 | 285 | 240 | 240 | 485 | 8−Φ23 | 8−Φ23 |
| 200 | 340 | 340 | 295 | 295 | 570 | 8−Φ23 | 12−Φ23 |
| 250 | 395 | 405 | 350 | 355 | 655 | 12−Φ23 | 12−Φ28 |
| 300 | 445 | 460 | 400 | 410 | 750 | 12−Φ23 | 12−Φ28 |
Standard export wooden case packaging ensures safe transportation and protection of the valves during transit.