一、概述Outline
QJ(A/B/C)R型氣動(dòng)活塞兩段切斷球閥是一種能實(shí)現兩次開(kāi)或兩次關(guān)動(dòng)作的切斷球閥，是一種較為先進(jìn)的氣動(dòng)執行器。它是由球閥、活塞執行機構、電磁閥、單向閥、快速排氣閥等部件組成，由于執行機構采用了快速排氣及節能功能，使兩段球閥具有非常優(yōu)良的開(kāi)關(guān)特性，使開(kāi)閥、關(guān)閥速度減緩，使管道中流體變化平穩，不會(huì )因沖擊產(chǎn)生水錘現象使易燃流體發(fā)生爆炸，亦不會(huì )因沖擊而損壞系統中流量計及其它儀表，因而適用于石油、化工、輕工、國防等行業(yè)的流量定量控制系統，特別適用于油品貯運系統。
QJ (A / B / C) R-type pneumatic piston valve is a two cut to achieve the two open cut or two off the ball movement is a more advanced pneumatic actuators. It is a ball valve, piston actuator, solenoid valve, check valve, quick exhaust valves and other components, the implementing agencies with a quick exhaust and power-saving features, the two ball has a very good switching characteristics, so that open valve, close the valve slowed down, so that changes in steady pipe flow, the impact will not produce water hammer phenomenon to the explosion of flammable fluid will not damage the system due to the impact of flow meters and other instruments, making it suitable for oil, chemical industry, light industry, defense industry, quantitative flow control system, especially for oil storage and transportation systems.
二、規格與技術(shù)參數Specifications and technical parameters
|
公稱(chēng)通徑mm |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
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|
額定流量系數Kv |
21 |
38 |
72 |
112 |
130 |
235 |
380 |
512 |
941 |
1450 |
2220 |
3590 |
5130 |
7360 |
|
|
|
開(kāi)閥速度S |
0.3 |
0.5 |
1 |
1.5 |
|
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固有流量特性 Inherent flow characteristic |
快開(kāi)特性Quick-opening feature |
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介質(zhì)溫度 Temperature℃ |
常溫-20~+180，中溫-40~+350Temperature -20 ~ +180, the temperature -40 ~ +350 |
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額定行程 Rated travel |
90° |
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氣源壓力Mpa |
0.4~0.6 |
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閥體材質(zhì) Body material |
WCB(ZG230-450)、 ZG1Cr18Ni9Ti、 ZG1Cr18Ni12Mo2Ti |
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公稱(chēng)壓力Mpa |
1.6、6.4 |
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泄漏量Leakage |
符合GB4213/T V級Meet GB4213 / T V-class |
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執行機構 Executive body |
橫裝活塞式Cross-loaded piston |
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法蘭形式 Flange in the form |
JB/T79-94，JB9112-88 |
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電磁閥電源 Solenoid valve power |
24VDC |
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三、可配附件Available Accessories
電磁閥、手輪機構、閥門(mén)開(kāi)關(guān)、電-氣閥門(mén)定位器、空氣過(guò)濾減壓器等
Solenoid valve, hand wheel, valve switch, electric - gas valve positioners, air filter regulator, etc.
四、外形尺寸Dimensions
|
DN |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
|
L |
PN16 |
150 |
165 |
180 |
200 |
220 |
250 |
280 |
320 |
360 |
400 |
533 |
610 |
|
PN64 |
180 |
200 |
220 |
250 |
280 |
320 |
360 |
381 |
403 |
600 |
700 |
800 |
|
|
L1 |
350 |
350 |
470 |
470 |
470 |
550 |
550 |
550 |
820 |
820 |
820 |
1020 |
|
|
H |
PN16 |
340 |
350 |
395 |
415 |
475 |
495 |
515 |
550 |
640 |
695 |
920 |
1975 |
|
PN64 |
360 |
370 |
405 |
480 |
500 |
545 |
575 |
630 |
670 |
780 |
970 |
1050 |
|
|
H1 |
PN16 |
290 |
290 |
320 |
350 |
385 |
395 |
405 |
425 |
500 |
525 |
720 |
745 |
|
PN64 |
290 |
295 |
325 |
390 |
400 |
440 |
450 |
480 |
555 |
580 |
740 |
785 |
|
|
W(Kg) |
PN16 |
19 |
19 |
22 |
24 |
28 |
33 |
69 |
83 |
104 |
125 |
205 |
340 |
|
PN64 |
22 |
22 |
24 |
26 |
32 |
42 |
82 |
101 |
127 |
165 |
250 |
390 |
|
