AR 軸流式自力式調(diào)壓閥 AR axial pressure regulator,管網(wǎng)的進口壓力經(jīng)前置指揮器 穩(wěn)壓后進入控制指揮器, 控制指揮 器調(diào)壓,輸出 P3 進入閥后腔,推動膜片 ,克服彈簧作用力, 使閥口打開,實現(xiàn)減壓和穩(wěn)定的流量輸出。
公稱尺寸 Nominal size |
NPS1~ 12 |
公稱壓力 Nominal pressure |
Class150~900 |
執(zhí)行標(biāo)準(zhǔn) Standard |
EN 334 |
閥體材料 Body material |
A105,A350 LF2,A216 WCB,A352 LCC |
適用介質(zhì) Suitable medium |
天然氣及非腐蝕性氣體 Natural gas and non-corrosive gases |
適用溫度 Suitable temperature |
-29℃ ~+60℃ ;-46℃ ~+60℃ |
應(yīng) 用 Application |
長輸管 線 輸氣 站、城 市燃 氣調(diào)壓 站 、工 業(yè) 用氣 等 對于出口 壓 力的 控制 Using for long-distance pipeline gas station, city gas pres- sure regulating stations, industrial gas for outlet pressure con- trol. |
@ 產(chǎn)品特點 / Product feature
1、軸流式結(jié)構(gòu),流通能力強。 Axial structure, highest capacity.
2、調(diào)節(jié)范圍大,調(diào)節(jié)精準(zhǔn),經(jīng)久耐用。 Wide rangeability, accurate adjustment, durable.
3、AR 型適合做為自力式監(jiān)控調(diào)壓閥和自力式工作 調(diào)壓閥工況使用。AR suitable as self-monitoring regulator and self-pressure regulator.
4、套筒材質(zhì)為不銹鋼并進行拋光處理,使套筒更好 滑動和耐腐蝕。Cage is stainless steel and polished, a better sliding of the cage and corrosion.
5、可配出口變徑減噪裝置和內(nèi)部減噪裝置。 Exports can be equipped with adjustable noise reduction apparatus and internal noise reduction apparatus.
6、標(biāo)準(zhǔn)的就地閥位指示器。 Standard valve position indicator in place
7、可配備閥位傳感變送器。 Can be equipped with valve position moni-tor.
8、提供故障開和故障關(guān)兩種模式。 Failure to open and failure of two modes.
@ 工作原理 / Working principle
管網(wǎng)的進口壓力經(jīng)前置指揮器 穩(wěn)壓后進入控制指揮器, 控制指揮 器調(diào)壓,輸出 P3 進入閥后腔,推動 膜片 ,克服彈簧作用力, 使閥口打 開,實現(xiàn)減壓和穩(wěn)定的流量輸出。
當(dāng)下游用氣量減小時,調(diào)壓閥 后的壓力 P2 升高,P2 反饋給控制 指揮器,使控制指揮器失去平衡,其 輸出壓力 P3 減小,調(diào)壓閥內(nèi)也打 破了平衡, 膜片在彈簧和 P2 的作 用下,使閥口開度變小,甚至關(guān)閉, 使調(diào)壓閥的出 口壓力降回到設(shè)定 壓力值。
當(dāng)下游用氣量增加時 P2 降低, 其各部分的動作相反。
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.
@ 產(chǎn)品技術(shù)參數(shù) / Product technical parameter
最`大進口壓力 Max inlet pressure(MPa) |
12 (根據(jù)法蘭等級可低于此值) According to flange rating below this value |
||
出口壓力范圍(MPa) Outlet pressure range |
0. 1~ 11 |
||
精度等級 AC Accuracy class |
AC1~5 |
||
關(guān)閉壓力等級 SG Closing pressure class |
SG2.5~ 10 |
||
關(guān)閉區(qū)等級 Close district level |
SZ2.5~ 10 |
||
入口與出口最小壓差(MPa) Inlet and outlet minimum differential pressure |
0.5 |
||
指揮器彈簧 Pilot spring |
彈簧序號 Spring no. |
彈簧顏色 Spring color |
彈簧范圍(MPa) Spring range |
控制指揮器 ARx00-Gxx 彈簧范圍 Control pilot valve ARx00-Gxx spring range |
2 3 4 5 6 7 8 |
紅 Red 橙 Orange 黃 Yellow 綠 Green 藍 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 |
@ 主要零部件材料 / Material of main parts
閥 體 Body |
A105,A350 LF2 |
套 筒 Cage |
A182 F316 |
彈 簧 Spring |
55CrSi,X750,A276 316 |
皮 膜 Film |
丁腈橡膠( NBR ) |
指 揮 器 Pilot |
合金鋁( Aluminum alloy),A105,A350 LF2,A182 F316 |
密封材料 Sealing material |
增強聚四氟( RPTFE )、丁腈橡膠( NBR )、氟橡膠( Viton ) |
@ 產(chǎn)品技術(shù)參數(shù) / Product technical parameter