SDA-22C-300T安全阀 主要性能参数 Specification
| 型号 Type | SFA-22C300T |
| 公称压力 Nominal pressure | 300Lbs |
| 公称通径 Nominal diameter | DN8~32(1/4~1/4) |
| 强度试验压力 Shell test pressure | 5.2MPa |
| 排放压力 Relieving pressure | ≤1.1倍整定压力 |
| 密封压力 Seal pressure | 0.9倍整定压力 |
| 密封性 Seal property | 气压试验2分钟无泄漏、卤素检漏实验泄漏率 |
| 适用温度 Suitable temperature | -40~105°C |
| 适用介质 Suitable medium | 制冷剂、油、水等 |
SDA-22C-300T安全阀 主要零件材料 Main parts material
| 序号 NO. | 零件名称 Part name | 材料 Materials |
| 1 | 阀体 Body | HPb59-1/H62 |
| 2 | 密封圈 Seal | PTFE |
| 3 | 阀瓣 Disc | HPb59-1/H62 |
| 4 | 弹簧 Spring | 50CrVA |
| 5 | 调整螺母 Adj.nut | HPb59-1/H62 |
| 6 | 垫片 Gasket | T3 |
| 7 | 螺母 Nut | HPb59-1/H62 |
SDA-22C-300T安全阀 额定排量（空气）Lbs/min Relieving capacity (Air)
| 规定 Size mm(in) | do mm | 整定压力Psig(Mpa) Set pressure |
| 200（1.38） | 250（1.72） | 300（2.07） | 350（2.42） | 400（2.76） |
| DN8(1/4) | 6.3 | 9 | 11.5 | 13.5 | 15.5 | 18 |
| DN10(3/8) | 7.0 | 12 | 14.5 | 17 | 20 | 22.5 |
| DN15(1/2) | 7.8 | 14.5 | 18 | 21.5 | 25 | 28 |
| DN20(3/4) | 11 | 29 | 35.5 | 42.5 | 49.5 | 56 |
| DN25(1) | 18 | 77.5 | 95.5 | 114 | 132.5 | 150.5 |
| DN32(1/4) | 26.5 | 168 | 207 | 247 | 287 | 319.5 |
SDA-22C-300T安全阀 连接尺寸 Connecting dimension
| 规格 Size mm(in) | in | H (mm) |
| 进口A Inlet A | 出口B outlet B |
| DN8(1/4) | 1/4-18MNPT | 5/8-18UNF | 80 |
| DN10(3/8) | 3/8-18MNPT | 5/8-18UNF | 90 |
| DN15(1/2) | 1/2-14MNPT | 7/8-14UNF | 95 |
| DN20(3/4) | 3/4-14MNPT | 3/4-14FNPT | 100 |
| DN25(1) | 1-11.5MNPT | 1-11.5FNPT | 120 |
| DN32(1/4) | 1/4-11.5MNPT | 1/2-11.5FNPT | 175 |