A46Y、A46F型先導(dǎo)式安全閥
一、用途:
先導(dǎo)式安全泄壓閥是一種新穎結(jié)構(gòu)的安全閥。主要用于石油天然氣、化工、電力、冶金和城市燃?xì)獾阮I(lǐng)域,是受壓設(shè)備、容器或管路上的超壓保護(hù)裝置。其主要優(yōu)點(diǎn)是變彈簧直接作用為導(dǎo)閥間接作用,提高了動作的靈敏度,而且主閥采用套筒活塞式,動作精度高、重復(fù)性好、回座壓力高、密封性能好、能帶高背壓排放、工作穩(wěn)定可靠,可在線調(diào)校,操作維護(hù)方便。
二、主要連接尺寸:
公稱通徑 DN | DN' | 尺 寸 | |||
do | L | L1 | ≈H | ||
25 | 32 | 15 | 110 | 95 | 355 |
25 | 50 | 15 | 114 | 105 | 365 |
32 | 40 | 20 | 115 | 105 | 382 |
40 | 50 | 25 | 121 | 124 | 402 |
50 | 65 | 32 | 135 | 120 | 428 |
50 | 80 | 33 | 124 | 137 | 442 |
65 | 80 | 40 | 160 | 140 | 455 |
80 | 100 | 50 | 162 | 156 | 465 |
100 | 125 | 65 | 205 | 160 | 485 |
100 | 150 | 65 | 210 | 197 | 515 |
150 | 200 | 100 | 241 | 240 | 632 |
200 | 250 | 125 | 279 | 276 | 695 |
PN64~100 | PN160 | ||||||||||
DN | DN' | do | L | L1 | ≈H | DN | DN' | do | L | L1 | ≈H |
25 | 32 | 15 | 110 | 100 | 372 | 25 | 50 | 13 | 121 | 126 | 445 |
25 | 50 | 15 | 114 | 111 | 385 | 40 | 50 | 16 | 140 | 149 | 460 |
32 | 40 | 20 | 130 | 110 | 398 | 50 | 80 | 32 | 171 | 167 | 495 |
40 | 50 | 25 | 121 | 124 | 410 | 80 | 100 | 48 | 181 | 191 | 515 |
50 | 65 | 32 | 160 | 130 | 445 | 100 | 150 | 60 | 233 | 249 | 575 |
50 | 80 | 32 | 124 | 137 | 458 | | | | | | |
65 | 80 | 40 | 175 | 160 | 485 | | | | | | |
80 | 100 | 50 | 162 | 162 | 496 | | | | | | |
100 | 125 | 65 | 195 | 195 | 520 | | | | | | |
100 | 150 | 65 | 210 | 197 | 538 | | | | | | |
150 | 200 | 100 | 241 | 246 | 638 | | | | | | |
200 | 250 | 125 | 279 | 297 | 715 | | | | | | |
PN64~100 | PN160 | ||||||||||
DN | DN' | do | L | L1 | ≈H | DN | DN' | do | L | L1 | ≈H |
25 | 32 | 15 | 110 | 100 | 372 | 25 | 50 | 13 | 121 | 126 | 445 |
25 | 50 | 15 | 114 | 111 | 385 | 40 | 50 | 16 | 140 | 149 | 460 |
32 | 40 | 20 | 130 | 110 | 398 | 50 | 80 | 32 | 171 | 167 | 495 |
40 | 50 | 25 | 121 | 124 | 410 | 80 | 100 | 48 | 181 | 191 | 515 |
50 | 65 | 32 | 160 | 130 | 445 | 100 | 150 | 60 | 233 | 249 | 575 |
50 | 80 | 32 | 124 | 137 | 458 | | | | | | |
65 | 80 | 40 | 175 | 160 | 485 | | | | | | |
80 | 100 | 50 | 162 | 162 | 496 | | | | | | |
100 | 125 | 65 | 195 | 195 | 520 | | | | | | |
100 | 150 | 65 | 210 | 197 | 538 | | | | | | |
150 | 200 | 100 | 241 | 246 | 638 | | | | | | |
200 | 250 | 125 | 279 | 297 | 715 | | | | | | |