AR 轴流式自【zì】力式【shì】调压阀 AR axial pressure regulator,管网的进【jìn】口压力经前置指【zhǐ】挥器 稳压后进【jìn】入控制指挥器, 控制指挥【huī】 器调压,输出 P3 进【jìn】入阀后腔,推动膜片 ,克【kè】服弹簧作用力【lì】, 使阀口打【dǎ】开,实现减压和稳定的【de】流【liú】量输出。
公称尺寸 Nominal size |
NPS1~ 12 |
公称压力 Nominal pressure |
Class150~900 |
执行标准 Standard |
EN 334 |
阀体材料 Body material |
A105,A350 LF2,A216 WCB,A352 LCC |
适用介质 Suitable medium |
天然气及非腐蚀性气体 Natural gas and non-corrosive gases |
适用温度 Suitable temperature |
-29℃ ~+60℃ ;-46℃ ~+60℃ |
应 用 Application |
长输管 线 输气 站、城 市燃 气调压 站 、工 业 用气 等 对于出口 压 力的 控制 Using for long-distance pipeline gas station, city gas pres- sure regulating stations, industrial gas for outlet pressure con- trol. |
@ 产品特点 / Product feature
1、轴流式结构,流通能力强。 Axial structure, highest capacity.
2、调节范围大,调节精准,经久耐用。 Wide rangeability, accurate adjustment, durable.
3、AR 型适【shì】合做【zuò】为自力式【shì】监控【kòng】调压阀和【hé】自力式工作 调压阀【fá】工况使用。AR suitable as self-monitoring regulator and self-pressure regulator.
4、套筒材质为不锈【xiù】钢并进行抛光处理,使套【tào】筒更【gèng】好 滑【huá】动和【hé】耐腐蚀。Cage is stainless steel and polished, a better sliding of the cage and corrosion.
5、可配出口变径减噪装置和内部减噪装置。 Exports can be equipped with adjustable noise reduction apparatus and internal noise reduction apparatus.
6、标准的就地阀位指示器。 Standard valve position indicator in place
7、可配备阀位传感变送器。 Can be equipped with valve position moni-tor.
8、提供故障开和故障关两种模式。 Failure to open and failure of two modes.
@ 工作原理【lǐ】 / Working principle
管【guǎn】网的进口压力经前【qián】置【zhì】指挥【huī】器 稳压【yā】后进入控制指挥器, 控制指挥 器调压,输出 P3 进【jìn】入阀后腔【qiāng】,推动 膜片 ,克服弹簧作用力, 使阀口【kǒu】打 开,实【shí】现减压【yā】和稳定的流量【liàng】输出。
当【dāng】下游用气量减小时,调压阀 后的压力 P2 升高,P2 反馈给【gěi】控制 指挥器,使控制指挥器失去平衡,其 输出压力 P3 减小,调压【yā】阀【fá】内也打 破了【le】平衡, 膜片在弹簧和 P2 的【de】作 用下【xià】,使阀口开度变小,甚至关【guān】闭, 使调压阀的出 口【kǒu】压【yā】力降回到设定 压力值。
当下游用气量增加时 P2 降低, 其各部分的动作相反。
The inlet pressure of the pipe network after pre-pilot regu-lator into the control and
command , control pilot regulator, the output P3 into the valve chamber to promote the di-
aphragm against the spring force, the valve port open, de-compression and stabilityflow output.
When the downstream gas consumption is reduced, the pressure after the regulator increased P2, P2 feedback to the control command, the command and control loss of balance, reduce the output pressure P3, the regulator also tipped the balance in the diaphragm under the action of the springs and P2, so that the valve opening degree becomes small, and even shut down, so that the outlet pressure of the regu-lator valve to drop back to the set pressure value.
P2 reduced when the downstream gas consumption is in-creased, contrary to the operation of each part.
@ 产【chǎn】品【pǐn】技术参数 / Product technical parameter
最`大进口压力 Max inlet pressure(MPa) |
12 (根据法兰等级可低于此值) According to flange rating below this value |
||
出口压力范围(MPa) Outlet pressure range |
0. 1~ 11 |
||
精度等级 AC Accuracy class |
AC1~5 |
||
关闭压力等级 SG Closing pressure class |
SG2.5~ 10 |
||
关闭区等级 Close district level |
SZ2.5~ 10 |
||
入口与出口最小压差(MPa) Inlet and outlet minimum differential pressure |
0.5 |
||
指挥器弹簧 Pilot spring |
弹簧序号 Spring no. |
弹簧颜色 Spring color |
弹簧范围(MPa) Spring range |
控制指挥器 ARx00-Gxx 弹簧范围 Control pilot valve ARx00-Gxx spring range |
2 3 4 5 6 7 8 |
红 Red 橙 Orange 黄 Yellow 绿 Green 蓝 Blue 紫 Purple 黑 Black |
0.1~0.5 0.4~ 1.2 1.0~2.0 1.5~3.0 2.5~5.5 4.5~8.0 7.0~ 11.0 |
NPS |
Kv –值[m3/h] |
|
|
( ρn=0.83kg/m3 ) |
( ρn=0.77kg/m3 ) |
1″ |
550 |
570 |
2″ |
2200 |
2280 |
3″ |
5610 |
5820 |
4″ |
8800 |
9130 |
6″ |
19800 |
20550 |
8″ |
37400 |
38820 |
10″ |
55000 |
57090 |
12″ |
96500 |
98070 |
@ 主【zhǔ】要零部件材料 / Material of main parts
阀 体 Body |
A105,A350 LF2 |
套 筒 Cage |
A182 F316 |
弹 簧 Spring |
55CrSi,X750,A276 316 |
皮 膜 Film |
丁腈橡胶( NBR ) |
指 挥 器 Pilot |
合金铝( Aluminum alloy),A105,A350 LF2,A182 F316 |
密封材料 Sealing material |
增强聚四氟( RPTFE )、丁腈橡胶( NBR )、氟橡胶( Viton ) |
@ 产品【pǐn】技术参数【shù】 / Product technical parameter