產品簡介：
這是一種超薄型的止回閥，它具有結構簡單，外形美觀，重量輕，安裝方便等優點。該閥主要用于給水系統，石油，化工，冶金等工業部門，適用于安裝空間有限制的場所。
Product Introduction:
This is thin check valve ,it Simple and compact structure, Small in size and light in weight. Easy transportation , installation and maintenance. They are widespread used for water supply, oil goods , chemical engineering , metallurgy etc, and they are suitable for limited space.
主要性能參數：Main Performance Parameters:
公稱壓力 NominalPressure (MPa) | 公稱通徑 Nominal Diameter (mm) | 試驗壓力 Testing Pressure (MPa) | 適用溫度Suitable Temp oC | 適用介質 Suitable Media |
殼 體Shell | 密 封 Seal |
1.0 | 50 -- 600 | 1.5 | 1.1 | ≤120
(MAX≤250) | 水，油類，酸堿等液體Oils, water, Acids, Alkalis, etc. |
1.6 | 50 -- 600 | 2.4 | 1.76 |
主要零部件材質：Materials of Main Parts:
名稱 Part Name | 閥體、閥瓣 Valve body、Valve petal | 密封圈 Seal Circle |
材料 Material | 碳鋼、不銹鋼、銅 Carbon steel、Stainless steel、Copper | 丁腈橡膠、三元乙丙橡膠、聚四氟乙烯 NBR、EPDM、PTFE |
主要連接尺寸及重量：Outline Dimensions & Connection Dimensions & Weight
公稱通徑 Nominal dimension
DN(mm) | d | L | D |
I 型 I Type | II 型 II Type | PN1.0 | PN1.6 |
50 | 25 | 15 | 22 | 109 | 109 |
65 | 38 | 15 | 22 | 129 | 129 |
80 | 46 | 15 | 22 | 144 | 144 |
100 | 72 | 15 | 24 | 164 | 164 |
125 | 95 | 16 | 26 | 194 | 194 |
150 | 114 | 19 | 29 | 221 | 221 |
200 | 140 | 29 | 43 | 275 | 275 |
250 | 188 | 29 | 43 | 330 | 331 |
300 | 216 | 38 | 50 | 380 | 386 |
350 | 263 | 41 | 52 | 440 | 446 |
400 | 305 | 51 | 62 | 491 | 498 |
450 | 356 | 51 | 62 | 541 | 558 |
500 | 406 | 65 | 80 | 596 | 620 |
600 | 482 | 70 | 90 | 698 | 737 |
