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外螺纹连接安全阀A28H
主要性能规范:Main technical data | ||||||||
型号 type |
整定压力范围 MPa Range of Adjusted pressure |
密封试验压力 MPa sealing test pressure |
排放压力 |
回座压力 MPa re-seating pressure |
开启高度 mm Value Lift |
适用介质 Suitable medium |
适用温度 ℃ Suitable temperature |
排量系数 coefficient of dischange |
A28H-10 | Ps0.1~1.0 | Ps<0.3时,Ps-0.03 Ps≥0.3时 90%整定压力 setting pressure | ≤1.03 x 整定压力 setting pressure |
≥90% 整定压力 setting pressure |
≥1/4 喉径 Throat diameter |
蒸汽 steam |
≤200 | 0.7 |
A28H-16Q | Ps0.1~1.6 | |||||||
A28H-16C |
主要零件材料 Material of main parts | |||||||
型号 type |
零件名称 The name of part | ||||||
阀体、阀盖 body、Bonnet |
阀座、阀瓣 Sealing seat Disc |
弹簧座、阀杆 Spring seat,Stem |
弹簧 Spring |
调节螺母 Adjust Num |
阀帽 Cap |
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A28H-10 | HT200 | 2Cr13 | 2Cr13 | 50CrVa | 碳钢 Carbon steel |
HT200 | |
A28H-16Q | QT450-10 | ||||||
A28H-16C | WCB |
主要外形尺寸及连接尺寸 Main size of Appearance | |||||||
公称通径 DN/mm Inside Nominal Diameter |
进口螺纹 Inlet thread RC/in |
出口螺纹 Discharge thread G/in |
d0 | L | L1 | H | G |
15 | Rc1/2 | G3/4 | 10 | 35 | 50 | 140 | 30 |
20 | Rc3/4 | G1 | 15 | 40 | 55 | 150 | 34 |
25 | Rc1 | G11/4 | 20 | 45 | 65 | 170 | 40 |
32 | Rc11/4 | G11/2 | 25 | 55 | 85 | 260 | 48 |
40 | Rc11/2 | G2 | 32 | 60 | 90 | 280 | 56 |
50 | Rc2 | G21/2 | 40 | 75 | 105 | 320 | 66 |
80 | Rc3 | G4 | 65 | 110 | 135 | 420 | 100 |