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|
GA44H-16、25 GA44H-40、64等 |
双杠杆式安全阀 |
PN16~100 |
GA44H型安全阀的主要零件材料和GA42H-16C/25/40安全阀的相同。
GA44H型双杠杆式安全阀适用于温度≤450℃的电站锅炉和压力容器上，防止压力超过允许最高值，介质可为蒸汽、空气。
| 主要性能规范：Main technical data | |||||||
| 型号 type | 公称压力 PN/MPa Nominal Pressure | 工作压力范围 /MPa | 整定压力 MPa setting pressure | 工作温度 ℃ Working tempreature | 回座压差 Re-seating pressure | 适用介质 suitable medium | 额定排量系数 Derated coefficient of discharge |
| GA44H-25 | 2.5 | 0.78～1.57 | 1.04倍工作压力 1.04 times of working pressures | ≤450 | 4%～10% 整定压力 setting pressure | 蒸汽 steam | 0.24 |
| GA44H-40 | 4.0 | 1.57～2.45 | ≤450 | ||||
| GA44H-64 | 6.4 | 2.45～4.22 | ≤450 | ||||
| 主要零部件材料：Main parts material | ||||||
|
零件名称 The name of parts |
阀体 body |
阀座、阀瓣 Seat Disc |
阀杆 Stem |
衬套 Bushing |
杠杆 Lever |
重锤 Steelyard weight |
| 材料 Material |
碳素铸钢 stainless steel |
不锈钢 stainless steel |
不锈钢 stainless steel |
不锈钢 stainless steel |
碳素钢 Carbon steel |
灰铸铁 cast steel |
| 主要尺寸及重量：Main size and weight | |||||||
| 型号 Type:GA44H-25 | |||||||
| 公称通径 DN/mm |
尺寸 /mm | ||||||
| H | L | D | D1 | D2 | b | Z-φd | |
| 50 | 350 | 705 | 165 | 125 | 100 | 2O | 4-φ18 |
| 80 | 360 | 705 | 200 | 160 | 135 | 22 | 8-φ18 |
| 100 | 42O | 705 | 230 | 190 | 160 | 24 | 8-φ23 |
| 注:进出口法兰均为平面法兰。Notice: The inlet and discharge are the plane flange | |||||||
| 型号 Type:GA44H-40 | ||||||||
| 公称通径 DN/mm |
尺寸 /mm | |||||||
| H | L | D | D1 | D2 | D6 | b | Z-φd | |
| 50 | 350 | 705 | 165 | 125 | 100 | 88 | 2O | 4-φ18 |
| 80 | 360 | 705 | 200 | 160 | 135 | 121 | 22 | 8-φ18 |
| 100 | 42O | 705 | 230 | 190 | 160 | 150 | 24 | 8-φ23 |
| 型号 Type:GA44H-64 | ||||||||
| 公称通径 DN/mm |
尺寸 /mm | |||||||
| H | L | D | D1 | D2 | D6 | b | Z-φd | |
| 80 | 480 | 885 | 210 | 170 | 140 | 121 | 33 | 8-φ23 |