| Part name | Material |
| Valve body | Nickel-chromium alloy integral casting |
| Valve plate | Nickel-chromium alloy |
| Valve seat | Nickel-chromium alloy |
| Valve stem | Alloy steel (hard chrome plated) |
| Packing | Reinforced graphite/carbon fiber |
| Cylinder | Standard quick exhaust valve, magnetic induction limit or mechanical limit |
| Main shape and connection dimensions | |||||
| unit：mm | |||||
| DN | D | D1 | N-d | H | L |
| 400 | 565 | 515 | 16-022 | 90 | 1600 |
| 450 | 615 | 565 | 40-22 | 100 | 1650 |
| 500 | 670 | 620 | 20-022 | 110 | 1700 |
| 550 | 670 | 620 | 20-022 | 120 | 1750 |
| 600 | 780 | 720 | 20-027 | 130 | 1800 |
| 650 | 780 | 720 | 20-027 | 140 | 1850 |
| 700 | 890 | 849 | 24-027 | 150 | 1900 |
| 750 | 890 | 849 | 24-027 | 170 | 1950 |
| 800 | 1010 | 950 | 24-030 | 180 | 2050 |
| Fault phenomenon | Cause diagnosis | Troubleshooting methods |
| Flange connection is not sealed (leakage) | Is the working surface of the valve intact | Repair flange working surface/replace flange |
| Is the valve deformed | Replace and add flange gasket | |
| Is the bolt tight and even | Evenly adjust bolts to loosen | |
| The valve is not sealed (internal leakage) | Is the valve in place | Remove stuck foreign matter |
| Is the valve seal intact | Clean and replace seal pair | |
| The valve does not open or close smoothly | Is the cylinder bumped | Replace cylinder |
| Is the air pressure insufficient or full | Inspect air supply pipeline | |
| Is the valve body transmission component abnormal | Adjust and replace parts |
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