(水，气)蒸汽安全阀
简要描述：RETZ (水，气)进口蒸汽安全阀主要用于蒸汽、天然气、油品、冷热水、燃气等领域，作为超压保护装置，具有动作精度高，重复性好，回座准确，操作维护方便
品牌：RETZ- 工况条件：蒸汽安全阀
- 温度/压力：P-T:16bar-350℃
- 更新时间：2022/08/25
主要性能 Main performance
(水，气)进口蒸汽安全阀用在锅炉、压力容器、管路等受压设备上作为超压保护装置。当被保护设备内介质压力异常升高，超过规定值
时，阀门自动开启，继而全量排放，以防止压力继续升高，当压力降低到规定值时，阀门自动关闭，保证设备正常运行 RETZ Imported steam safety valves are used as overpressure protection devices on pressure equipment such as boilers, pressure vessels and pipelines. When the medium pressure in the protected equipment rises abnormally and exceeds the specified value, the valve will automatically open and then discharge the full amount to prevent the pressure from rising continuously. When the pressure drops to the specified value, the valve will automatically close to ensure the normal operation of the equipment.
连接口径：DN20/32~DN150/250（法兰连接）Connection diameter: DN20 / 32 ~ DN150 / 250 (flange connection)
流通孔径DO（mm）18-125 Flow hole diameter do (mm) 18-125
流通面积AＯ（mm）254-12266 Flow area Ao (mm) 254-12266
结构 Structure
901型：全封闭，带手把
902型：开窗，不带手把
911型：全封闭，不带手把
912型：阀盖封闭，阀帽开窗，带手把
主要零件材料 Main parts and materials
零件名称 | 零件材料代号 | ||||
碳钢 | 铬钼钢 | 铬钼钒钢 | 不锈钢304 | 不锈钢316 | |
阀体 | WCB | ZG1Cr5Mo | ZG15Cr1Mo1VZG20CrMoV | zG1Cr18Ni9Ti CF8(304) | ZG1Cr18Ni12Mo2Ti |
阀瓣、阀杆 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9T(304) | 316 |
导向套、反冲盘 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18NiT(304) | 316 |
阀盖 | WCB | WCB | ZG1Cr5Mo | WCB/ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti |
密封面材料 | 铁基合金 | 钴基合金 | 钴基合金 | 钴基合金 | 钴基合金 |
弹簧 | 50CrVA | 50CrVA | 50CrVA/30W4Cr2VA | 50CrVA(缠绕四氟) | 50CrVA(缠绕四氟) |
进口蒸汽安全阀 整定压力分级 RETZ Setting pressure classification of inlet steam safety valve
公称压力(MPa)) | 整定压力Pk(MPa) | |||||||
1.6 | >0.1~0.16 | >0.16~0.25 | >0.25~0.4 | >0.4~0.6 | >0.6~0.8 | >0.8~1.0 | >1.0~1.3 | >1.3~1.6 |
2.5 | >1.3~1.6 | >1.6~2.0 | >2.0~2.5 | |||||
4 | >1.3~1.6 | >1.6~2.0 | >2.0~2.5 | >2.5~3.2 | >3.2~4.0 | |||
6.4 | >2.5~3.2 | >3.2~4.0 | >4.0~5.0 | >5.0~6.4 | ||||
10 | >3.2~4.0 | >4.0~5.0 | >5.0~6.4 | >6.4~8.0 | >8.0~10.0 | |||
16 | >8.0~10.0 | >10~13 | >13~16 | |||||
32 | >13~16 | >16~19 | >19~22 | >22~25 | >25~29 | >29~32 | ||
性能规范 Performance specification
注:Pk为整定压力，do为喉径 Note: PK is the set pressure, do is the throat diameter
性能规范适用介质 | 壳体试验压力Ps(MPa) | 密封试验压力PM(MPa) | 启闭压差△P ((MPa) | 排放压力Pp ((MPa) | 开启高度H(mm) | |
蒸气用安全阀 | 1.5PN | 90%Pk或回座压力最小值,取二者较小值 | Pk≤0.4时为≤0.04Pk>0.4时为≤10%Pk | ≤1.03Pk | 全启式 | ≥1/4do |
微启式 | ≥1/20 do | |||||
空气或其他气体用安全阀 | Pk<0.3时为Pk-0.03;Pk≥0.3时为90%Pk | Pk≤0.2时为≤0.03Pk>0.2时为≤15%Pk | ≤1.1Pk | 全启式 | ≥1/4do | |
微启式 | ≥1/20 do | |||||
水或其他液体用安全阀 | Pk≤0.3时为≤0.06Pk>0.3时为≤20%Pk | ≤1.2Pk | 全启式 | ≥1/4do | ||
微启式 | ≥1/20 do | |||||
(水，气)进口蒸汽安全性能特点∶ RETZ Performance characteristics
排量大,内部阀体在设计上能够提供良好的流动剖面 Large displacement, internal valve body can provide good flow profile in design
采用自定心阀塞,对密封面进行平衡处理，使其高度密封 Self centering valve plug is used to balance the sealing surface to make it highly sealed
配备作杆定位器的螺纹轴，便于即时手动操作 Equipped with a threaded shaft as a rod positioner for immediate manual operation
提升器采用不受密封影响的设计，使阀门在蒸汽膨胀时容易立即开启，保证精确地控制阀门的开闭 The lifter adopts a design that is not affected by sealing, so that the valve can be easily opened immediately when the steam expands, and the opening and closing of the valve can be accurately controlled
不同K值气体特性系数C值 Gas characteristic coefficient C of different K values
K | C | K | C | K | C | K | C |
1 | 315 | 1.2 | 337 | 1.4 | 356 | 1.6 | 372 |
1.02 | 318 | 1.22 | 339 | 1.42 | 358 | 1.62 | 374 |
1.04 | 320 | 1.24 | 341 | 1.44 | 359 | 1.64 | 376 |
1.06 | 322 | 1.26 | 343 | 1.46 | 361 | 1.66 | 377 |
1.08 | 324 | 1.28 | 345 | 1.48 | 363 | 1.68 | 379 |
1.1 | 327 | 1.3 | 347 | 1.5 | 364 | 1.7 | 380 |
1.12 | 329 | 1.32 | 349 | 1.52 | 366 | 2 | 400 |
1.14 | 331 | 1.34 | 351 | 1.54 | 368 | 2.2 | 412 |
1.16 | 333 | 1.36 | 352 | 1.56 | 369 | ||
1.18 | 335 | 1.38 | 354 | 1.58 | 371 |
安全阀额定排量计算RETZ Calculation of rated displacement of safety valve
介质为气体 The medium is gas
介质为液体 The medium is liquid
介质为饱和蒸汽 The medium is saturated steam
安装示意图 Installation diagram
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