用途：
本阀是蒸汽系统中的一种自动启闭装置，适用于工作温度≤200℃ 的蒸汽供热设备和蒸汽管路上，用以排除凝结水和阻止蒸汽的漏失，提高供热设备的热效率。
Uses:
The steam system valve is an automatic lifting device, suitable for operating temperature ≤ 200 ℃ steam heating equipment and steam pipe on the road, to rule out the steam condensate and prevent leakage, improve the thermal efficiency of heat equipment arch.
主要零件材料:
Main parts materials:.
| 零件名称 | 材料 |
| 阀体 | 灰铸铁 |
| 阀片 | 不锈钢 |
| 阀盖 | 不锈钢 |
| 过滤网 | 不锈钢 |
外形尺寸和连接尺寸:
Dimensions and connection dimensions:
| 型 号 | 公称通径(mm) | 尺寸(mm) |
| L | D | D1 | D2 | b-f | Z-Фd | H1 | H2 |
| S49H-16 | 15 | 150 | 95 | 65 | 45 | 14-2 | 4-14 | 60 | 60 |
| 20 | 150 | 105 | 75 | 55 | 16-2 | 4-14 | 62 | 65 |
| 25 | 160 | 115 | 85 | 65 | 16-2 | 4-14 | 65 | 70 |
| 32 | 230 | 135 | 100 | 80 | 18-2 | 4-18 | 70 | 75 |
| 40 | 230 | 145 | 110 | 85 | 18-2 | 4-18 | 75 | 88 |
| 50 | 230 | 160 | 125 | 100 | 20-3 | 4-18 | 80 | 95 |
DN65（含）以上的，需提前电话联系。