D系列減壓閥，采用隔膜型水力操作方式，可水平或垂直安裝于給水、消防系統(tǒng)或其他清水系統(tǒng)中。在一定流水范圍內(nèi)可控制該閥門出口壓力為一相對(duì)固定值，具有體型小巧，易于安裝等特點(diǎn)，具附有內(nèi)置式濾網(wǎng)，可方便整體安裝作業(yè)，避免雜物堵塞，使其更加安全可靠。

費(fèi)斯托減壓閥LR-1/4-D-7-MIDI：裝配位置 任何
設(shè)計(jì)結(jié)構(gòu) 直接控制的膜片式減壓閥
控制器功能 輸出壓力恒定
帶初壓補(bǔ)償
帶第二排氣通道
壓力表 帶壓力表
工作壓力 0 - 16 bar
壓力控制范圍 0.5 - 7 bar
zui大壓力遲滯 0.2 bar
標(biāo)準(zhǔn)額定流量 2,200 l/min
工作介質(zhì) 過濾、未潤(rùn)滑壓縮空氣，過濾精度40 祄
過濾、已潤(rùn)滑的壓縮空氣，過濾精度 40 祄
耐腐蝕等級(jí) CRC 2
介質(zhì)溫度 -10 - 60 °C
環(huán)境溫度 -10 - 60 °C
* Germanischer Lloyd
產(chǎn)品重量 720 g
安裝類型 帶附件
前面板安裝
線路安裝
一、用途
減壓閥主要用于各種建筑給水系統(tǒng)、消防系統(tǒng)、*空調(diào)系統(tǒng)、采暖系統(tǒng)等。它用于支管減壓，可使供水壓力分配更加均衡，避免部分供水超壓，優(yōu)化高層建筑給水分區(qū)。它可代替分區(qū)調(diào)頻變速水泵，在消防給水系統(tǒng)上可代替分區(qū)水泵，用于家用給水系統(tǒng)，可保護(hù)所有的水和其它水器具。
二、特點(diǎn)
采用直接作用隔膜式結(jié)構(gòu)，內(nèi)部結(jié)構(gòu)非常簡(jiǎn)單，無(wú)卡阻，性能可靠，經(jīng)久耐用。
耐臟防水垢，不需過濾器，不需旁通管，配管極其簡(jiǎn)單，能節(jié)省大量空間和配管成本。
出口壓力精密可調(diào)，在一般場(chǎng)合下，可以認(rèn)為出口壓力不受進(jìn)口壓力的影響，的水力特性，壓力損失小，減壓比可達(dá)成10：1以上。
可滿足多種減壓要求，特別適用于支管減壓系統(tǒng)。
三、工作原理
出口壓力作用在隔膜底面和閥瓣底面，當(dāng)它超過彈簧設(shè)定值時(shí)，壓縮彈簧，使閥瓣關(guān)閉。只要下游無(wú)水流動(dòng)，出口壓力將基本保持在設(shè)定值（其變化量?jī)H為入口壓力變化量的8%）；當(dāng)下游用水時(shí)，出口壓力下降，彈簧推開隔膜，打開減壓閥。水流連續(xù)流通一陣后，減壓閥的開啟產(chǎn)生自阻尼效應(yīng)，使啟閉動(dòng)作趨于平穩(wěn)。
四、可能的故障原因
1.霜凍損壞，在寒冷地區(qū)應(yīng)注意保溫。
2.水流方向裝錯(cuò)，減壓閥變成止回閥，出口壓力為0。
3.彈簧擰得太緊，無(wú)法關(guān)閉，減壓閥將直通P2=P1。
4.旁通管漏水，使P2偏離設(shè)定值，鑒于本減壓閥*的可靠性和耐久性，建議不安裝亮度通管為宜。

費(fèi)斯托產(chǎn)品部分型號(hào)：LFR-1/2-D-O-MIDI-NPT
LFR-1/2-D-O-MIDI-A-NPT
LFR-1/2-D-5M-MIDI-NPT
LFR-1/2-D-5M-MIDI-A-NPT
LFR-1/2-D-7-MIDI-NPT
LFR-1/2-D-7-MIDI-A-NPT
LFR-1/2-D-MIDI-KA
LFR-1/2-D-MIDI-KA-A
LFR-1/2-D-MIDI-KB
LFR-1/2-D-MIDI-KB-A
LFR-1/2-D-MIDI-KC
LFR-1/2-D-MIDI-KC-A
LFR-1/2-D-MIDI-KD
LFR-1/2-D-MIDI-KD-A
LFR-1/2-D-MIDI-KE
LFR-1/2-D-MIDI-KE-A
LFR-1/2-D-MIDI-KF
LFR-1/2-D-MIDI-KF-A
LFR-1/2-D-MIDI-KG
LFR-1/2-D-MIDI-KG-A
LFR-1/2-D-MAXI-KA
LFR-1/2-D-MAXI-KA-A
LFR-1/2-D-MAXI-KB
LFR-1/2-D-MAXI-KB-A
LFR-1/2-D-MAXI-KC
LFR-1/2-D-MAXI-KC-A
LFR-1/2-D-MAXI-KD
LFR-1/2-D-MAXI-KD-A
LFR-1/2-D-MAXI-KE
LFR-1/2-D-MAXI-KE-A
LFR-1/2-D-MAXI-KF
LFR-1/2-D-MAXI-KF-A
LFR-1/2-D-MAXI-KG
LFR-1/2-D-MAXI-KG-A
LFR-1/2-D-MAXI
LFR-1/2-D-O-MAXI
LFR-1/2-D-5M-MAXI
LFR-1/2-D-MAXI-A
LFR-1/2-D-O-MAXI-A
LFR-1/2-D-5M-MAXI-A
LFR-1/2-D-7-MAXI
LFR-1/2-D-7-MAXI-A
LFR-1/2-D-DI-MAXI
LFR-1/2-D-O-DI-MAXI
LFR-1/2-D-5M-DI-MAXI
LFR-1/2-D-5M-O-DI-MAXI
LFR-1/2-D-7-DI-MAXI
LFR-1/2-D-7-O-DI-MAXI
LFR-1/2-D-DI-MAXI-A
LFR-1/2-D-O-DI-MAXI-A
LFR-1/2-D-5M-DI-MAXI-A
LFR-1/2-D-5M-O-DI-MAXI-A
LFR-1/2-D-7-DI-MAXI-A
LFR-1/2-D-7-O-DI-MAXI-A
LFR-1/2-D-DI-MAXI-KA
LFR-1/2-D-DI-MAXI-KB
LFR-1/2-D-DI-MAXI-KC
LFR-1/2-D-DI-MAXI-KD
LFR-1/2-D-DI-MAXI-KE
LFR-1/2-D-DI-MAXI-KF
LFR-1/2-D-DI-MAXI-KG
LFR-1/2-D-DI-MAXI-KA-A
LFR-1/2-D-DI-MAXI-KB-A
LFR-1/2-D-DI-MAXI-KC-A
LFR-1/2-D-DI-MAXI-KD-A
LFR-1/2-D-DI-MAXI-KE-A
LFR-1/2-D-DI-MAXI-KF-A
LFR-1/2-D-DI-MAXI-KG-A
LFR-1/2-D-7-O-MIDI
LFR-1/2-D-7-O-MAXI
LFR-1/2-D-7-O-MIDI-A
LFR-1/2-D-7-O-MAXI-A
LFR-1/2-D-5M-O-MIDI
LFR-1/2-D-5M-O-MAXI
LFR-1/2-D-5M-O-MIDI-A
LFR-1/2-D-5M-O-MAXI-A
LFR-1-D-MAXI
LFR-1-D-MAXI-A
LFR-1-D-O-MAXI
LFR-1-D-O-MAXI-A
LFR-1-D-7-MAXI
LFR-1-D-7-MAXI-A
LFR-1-D-5M-MAXI
LFR-1-D-5M-MAXI-A
LFR-1-D-MAXI-NPT
LFR-1-D-MAXI-A-NPT
LFR-1-D-O-MAXI-NPT
LFR-1-D-O-MAXI-A-NPT
LFR-1-D-5M-MAXI-NPT
LFR-1-D-5M-MAXI-A-NPT
LFR-1-D-7-MAXI-NPT
LFR-1-D-7-MAXI-A-NPT
LFR-1-D-DI-MAXI
LFR-1-D-O-DI-MAXI
LFR-1-D-5M-DI-MAXI
LFR-1-D-5M-O-DI-MAXI
LFR-1-D-7-DI-MAXI
LFR-1-D-7-O-DI-MAXI
LFR-1-D-DI-MAXI-A
LFR-1-D-O-DI-MAXI-A
LFR-1-D-5M-DI-MAXI-A
LFR-1-D-5M-O-DI-MAXI-A
LFR-1-D-7-DI-MAXI-A
LFR-1-D-7-O-DI-MAXI-A
LFR-1-D-7-O-MAXI
LFR-1-D-7-O-MAXI-A
LFR-1-D-5M-O-MAXI
LFR-1-D-5M-O-MAXI-A
LFR-3/8-D-MIDI
LFR-3/8-D-MIDI-A
LFR-3/8-D-MINI
LFR-3/8-D-MINI-A
LFR-3/8-D-O-MINI
LFR-3/8-D-O-MIDI
LFR-3/8-D-O-MINI-A
LFR-3/8-D-O-MIDI-A
LFR-3/8-D-7-MINI
LFR-3/8-D-7-MIDI
LFR-3/8-D-7-MINI-A
LFR-3/8-D-7-MIDI-A
LFR-3/8-D-5M-MINI
LFR-3/8-D-5M-MIDI
LFR-3/8-D-5M-MINI-A
LFR-3/8-D-5M-MIDI-A
LFR-3/8-D-MINI-NPT
LFR-3/8-D-MINI-A-NPT
LFR-3/8-D-O-MINI-NPT
LFR-3/8-D-O-MINI-A-NPT
LFR-3/8-D-5M-MINI-NPT
LFR-3/8-D-5M-MINI-A-NPT
LFR-3/8-D-7-MINI-NPT
LFR-3/8-D-7-MINI-A-NPT
LFR-3/8-D-MIDI-NPT
LFR-3/8-D-MIDI-A-NPT
LFR-3/8-D-O-MIDI-NPT
LFR-3/8-D-O-MIDI-A-NPT
LFR-3/8-D-5M-MIDI-NPT
LFR-3/8-D-5M-MIDI-A-NPT
LFR-3/8-D-7-MIDI-NPT
LFR-3/8-D-7-MIDI-A-NPT
LFR-3/8-D-MIDI-KA
LFR-3/8-D-MIDI-KA-A
LFR-3/8-D-MIDI-KB
LFR-3/8-D-MIDI-KB-A
LFR-3/8-D-MIDI-KC
LFR-3/8-D-MIDI-KC-A
LFR-3/8-D-MIDI-KD
LFR-3/8-D-MIDI-KD-A
LFR-3/8-D-MIDI-KE
LFR-3/8-D-MIDI-KE-A
LFR-3/8-D-MIDI-KF
LFR-3/8-D-MIDI-KF-A
LFR-3/8-D-MIDI-KG
LFR-3/8-D-MIDI-KG-A
LFR-3/8-D-7-O-MINI
LFR-3/8-D-7-O-MIDI
LFR-3/8-D-7-O-MINI-A
LFR-3/8-D-7-O-MIDI-A
LFR-3/8-D-5M-O-MINI
LFR-3/8-D-5M-O-MIDI
LFR-3/8-D-5M-O-MINI-A
LFR-3/8-D-5M-O-MIDI-A
LFR-1/8-D-MINI
LFR-1/8-D-MINI-A
LFR-1/8-D-O-MINI
LFR-1/8-D-O-MINI-A
LFR-1/8-D-7-MINI
LFR-1/8-D-7-MINI-A
LFR-1/8-D-5M-MINI
LFR-1/8-D-5M-MINI-A
LFR-1/8-D-MINI-NPT
LFR-1/8-D-MINI-A-NPT
LFR-1/8-D-O-MINI-NPT
LFR-1/8-D-O-MINI-A-NPT
LFR-1/8-D-5M-MINI-NPT
LFR-1/8-D-5M-MINI-A-NPT
LFR-1/8-D-7-MINI-NPT
LFR-1/8-D-7-MINI-A-NPT
LFR-1/8-D-MINI-KA
LFR-1/8-D-MINI-KA-A
LFR-1/8-D-MINI-KB
LFR-1/8-D-MINI-KB-A
LFR-1/8-D-MINI-KC
LFR-1/8-D-MINI-KC-A
LFR-1/8-D-MINI-KD
LFR-1/8-D-MINI-KD-A
LFR-1/8-D-MINI-KE
LFR-1/8-D-MINI-KE-A
LFR-1/8-D-MINI-KF
LFR-1/8-D-MINI-KF-A
LFR-1/8-D-MINI-KG
LFR-1/8-D-MINI-KG-A
LFR-1/8-D-7-O-MINI
LFR-1/8-D-7-O-MINI-A
LFR-1/8-D-5M-O-MINI
LFR-1/8-D-5M-O-MINI-A
LFR-1/8-D-7-5M-MICRO
LFR-1/8-D-7-5M-MICRO-H
LFR-1/8-D-7-O-5M-MICRO
LFR-1/8-D-7-O-5M-MICRO-H
LFR-1/8-DB-7-5M-O-MINI
LFR-1/8-DB-7-O-MINI-H
LFR-1/8-DB-7-5M-O-MINI-H
LFR-1/8-DB-7-O-MINI
LFR-1/8-DB-7-MINI
LFR-1/8-DB-7-MINI-H
LFR-1/8-DB-7-5M-MINI
LFR-1/8-DB-7-5M-MINI-H
LFR-3/4-D-MAXI
LFR-3/4-D-MAXI-A
費(fèi)斯托氣缸：170824 DFM-12-10-P-A-GF 導(dǎo)向氣缸
170825 DFM-12-20-P-A-GF 導(dǎo)向氣缸
170826 DFM-12-25-P-A-GF 導(dǎo)向氣缸
170827 DFM-12-30-P-A-GF 導(dǎo)向氣缸
170828 DFM-12-40-P-A-GF 導(dǎo)向氣缸
170829 DFM-12-50-P-A-GF 導(dǎo)向氣缸
170830 DFM-12-80-P-A-GF 導(dǎo)向氣缸
170831 DFM-12-100-P-A-GF 導(dǎo)向氣缸
170832 DFM-16-10-P-A-GF 導(dǎo)向氣缸
170833 DFM-16-20-P-A-GF 導(dǎo)向氣缸
170834 DFM-16-25-P-A-GF 導(dǎo)向氣缸
170835 DFM-16-30-P-A-GF 導(dǎo)向氣缸
170836 DFM-16-40-P-A-GF 導(dǎo)向氣缸
170837 DFM-16-50-P-A-GF 導(dǎo)向氣缸
170838 DFM-16-80-P-A-GF 導(dǎo)向氣缸
170839 DFM-16-100-P-A-GF 導(dǎo)向氣缸
170840 DFM-20-20-P-A-GF 導(dǎo)向氣缸
170841 DFM-20-25-P-A-GF 導(dǎo)向氣缸
170842 DFM-20-30-P-A-GF 導(dǎo)向氣缸
170843 DFM-20-40-P-A-GF 導(dǎo)向氣缸
170844 DFM-20-50-P-A-GF 導(dǎo)向氣缸
170845 DFM-20-80-P-A-GF 導(dǎo)向氣缸
170846 DFM-20-100-P-A-GF 導(dǎo)向氣缸
170847 DFM-25-20-P-A-GF 導(dǎo)向氣缸
170848 DFM-25-25-P-A-GF 導(dǎo)向氣缸
170849 DFM-25-30-P-A-GF 導(dǎo)向氣缸
170850 DFM-25-40-P-A-GF 導(dǎo)向氣缸
170851 DFM-25-50-P-A-GF 導(dǎo)向氣缸
170852 DFM-25-80-P-A-GF 導(dǎo)向氣缸
170853 DFM-25-100-P-A-GF 導(dǎo)向氣缸
170854 DFM-32-20-P-A-GF 導(dǎo)向氣缸
170855 DFM-32-25-P-A-GF 導(dǎo)向氣缸
170856 DFM-32-30-P-A-GF 導(dǎo)向氣缸
170857 DFM-32-40-P-A-GF 導(dǎo)向氣缸
170858 DFM-32-50-P-A-GF 導(dǎo)向氣缸
170859 DFM-32-80-P-A-GF 導(dǎo)向氣缸
170860 DFM-32-100-P-A-GF 導(dǎo)向氣缸
170861 DFM-32-125-P-A-GF 導(dǎo)向氣缸
170862 DFM-32-160-P-A-GF 導(dǎo)向氣缸
170863 DFM-32-200-P-A-GF 導(dǎo)向氣缸
170864 DFM-40-25-P-A-GF 導(dǎo)向氣缸
170865 DFM-40-50-P-A-GF 導(dǎo)向氣缸
170866 DFM-40-80-P-A-GF 導(dǎo)向氣缸
170867 DFM-40-100-P-A-GF 導(dǎo)向氣缸
170868 DFM-40-125-P-A-GF 導(dǎo)向氣缸
170869 DFM-40-160-P-A-GF 導(dǎo)向氣缸
170870 DFM-40-200-P-A-GF 導(dǎo)向氣缸
170871 DFM-50-25-P-A-GF 導(dǎo)向氣缸
170872 DFM-50-50-P-A-GF 導(dǎo)向氣缸
170873 DFM-50-80-P-A-GF 導(dǎo)向氣缸
170874 DFM-50-100-P-A-GF 導(dǎo)向氣缸
170875 DFM-50-125-P-A-GF 導(dǎo)向氣缸
170876 DFM-50-160-P-A-GF 導(dǎo)向氣缸
170877 DFM-50-200-P-A-GF 導(dǎo)向氣缸
170878 DFM-63-25-P-A-GF 導(dǎo)向氣缸
170879 DFM-63-50-P-A-GF 導(dǎo)向氣缸
170880 DFM-63-80-P-A-GF 導(dǎo)向氣缸
170881 DFM-63-100-P-A-GF 導(dǎo)向氣缸
170882 DFM-63-125-P-A-GF 導(dǎo)向氣缸
170883 DFM-63-160-P-A-GF 導(dǎo)向氣缸
170884 DFM-63-200-P-A-GF 導(dǎo)向氣缸
170885 DFM-80-25-P-A-GF 導(dǎo)向氣缸
170886 DFM-80-50-P-A-GF 導(dǎo)向氣缸
170887 DFM-80-80-P-A-GF 導(dǎo)向氣缸
170888 DFM-80-100-P-A-GF 導(dǎo)向氣缸
170889 DFM-80-125-P-A-GF 導(dǎo)向氣缸
170890 DFM-80-160-P-A-GF 導(dǎo)向氣缸
170891 DFM-80-200-P-A-GF 導(dǎo)向氣缸
170892 DFM-100-25-P-A-GF 導(dǎo)向氣缸
170893 DFM-100-50-P-A-GF 導(dǎo)向氣缸
170894 DFM-100-80-P-A-GF 導(dǎo)向氣缸
170895 DFM-100-100-P-A-GF 導(dǎo)向氣缸
170896 DFM-100-125-P-A-GF 導(dǎo)向氣缸
170897 DFM-100-160-P-A-GF 導(dǎo)向氣缸
170898 DFM-100-200-P-A-GF 導(dǎo)向氣缸
170899 DFM-12-10-P-A-KF 導(dǎo)向氣缸
170900 DFM-12-20-P-A-KF 導(dǎo)向氣缸
170901 DFM-12-25-P-A-KF 導(dǎo)向氣缸
170902 DFM-12-30-P-A-KF 導(dǎo)向氣缸
170903 DFM-12-40-P-A-KF 導(dǎo)向氣缸
170904 DFM-12-50-P-A-KF 導(dǎo)向氣缸
170905 DFM-12-80-P-A-KF 導(dǎo)向氣缸
170906 DFM-12-100-P-A-KF 導(dǎo)向氣缸
170907 DFM-16-10-P-A-KF 導(dǎo)向氣缸
170908 DFM-16-20-P-A-KF 導(dǎo)向氣缸
170909 DFM-16-25-P-A-KF 導(dǎo)向氣缸
170910 DFM-16-30-P-A-KF 導(dǎo)向氣缸
170911 DFM-16-40-P-A-KF 導(dǎo)向氣缸
170912 DFM-16-50-P-A-KF 導(dǎo)向氣缸
170913 DFM-16-80-P-A-KF 導(dǎo)向氣缸
170914 DFM-16-100-P-A-KF 導(dǎo)向氣缸
170915 DFM-20-20-P-A-KF 導(dǎo)向氣缸
170916 DFM-20-25-P-A-KF 導(dǎo)向氣缸
170917 DFM-20-30-P-A-KF 導(dǎo)向氣缸
170918 DFM-20-40-P-A-KF 導(dǎo)向氣缸
170919 DFM-20-50-P-A-KF 導(dǎo)向氣缸
170920 DFM-20-80-P-A-KF 導(dǎo)向氣缸
170921 DFM-20-100-P-A-KF 導(dǎo)向氣缸
170922 DFM-25-20-P-A-KF 導(dǎo)向氣缸
170923 DFM-25-25-P-A-KF 導(dǎo)向氣缸
170924 DFM-25-30-P-A-KF 導(dǎo)向氣缸
170925 DFM-25-40-P-A-KF 導(dǎo)向氣缸
170926 DFM-25-50-P-A-KF 導(dǎo)向氣缸
170927 DFM-25-80-P-A-KF 導(dǎo)向氣缸
170928 DFM-25-100-P-A-KF 導(dǎo)向氣缸
170929 DFM-32-20-P-A-KF 導(dǎo)向氣缸
170930 DFM-32-25-P-A-KF 導(dǎo)向氣缸
170931 DFM-32-30-P-A-KF 導(dǎo)向氣缸
170932 DFM-32-40-P-A-KF 導(dǎo)向氣缸
170933 DFM-32-50-P-A-KF 導(dǎo)向氣缸
170934 DFM-32-80-P-A-KF 導(dǎo)向氣缸
170935 DFM-32-100-P-A-KF 導(dǎo)向氣缸
170936 DFM-32-125-P-A-KF 導(dǎo)向氣缸
170937 DFM-32-160-P-A-KF 導(dǎo)向氣缸
170938 DFM-32-200-P-A-KF 導(dǎo)向氣缸
170939 DFM-40-25-P-A-KF 導(dǎo)向氣缸
170940 DFM-40-50-P-A-KF 導(dǎo)向氣缸
170941 DFM-40-80-P-A-KF 導(dǎo)向氣缸
170942 DFM-40-100-P-A-KF 導(dǎo)向氣缸
170943 DFM-40-125-P-A-KF 導(dǎo)向氣缸
170944 DFM-40-160-P-A-KF 導(dǎo)向氣缸
170945 DFM-40-200-P-A-KF 導(dǎo)向氣缸
170946 DFM-50-25-P-A-KF 導(dǎo)向氣缸
170947 DFM-50-50-P-A-KF 導(dǎo)向氣缸
170948 DFM-50-80-P-A-KF 導(dǎo)向氣缸
170949 DFM-50-100-P-A-KF 導(dǎo)向氣缸
170950 DFM-50-125-P-A-KF 導(dǎo)向氣缸
170951 DFM-50-160-P-A-KF 導(dǎo)向氣缸
170952 DFM-50-200-P-A-KF 導(dǎo)向氣缸
170953 DFM-63-25-P-A-KF 導(dǎo)向氣缸
170954 DFM-63-50-P-A-KF 導(dǎo)向氣缸
170955 DFM-63-80-P-A-KF 導(dǎo)向氣缸
170956 DFM-63-100-P-A-KF 導(dǎo)向氣缸
170957 DFM-63-125-P-A-KF 導(dǎo)向氣缸
170958 DFM-63-160-P-A-KF 導(dǎo)向氣缸
170959 DFM-63-200-P-A-KF 導(dǎo)向氣缸
170960 DFM-80-25-P-A-KF 導(dǎo)向氣缸
170961 DFM-80-50-P-A-KF 導(dǎo)向氣缸
170962 DFM-80-80-P-A-KF 導(dǎo)向氣缸
170963 DFM-80-100-P-A-KF 導(dǎo)向氣缸
170964 DFM-80-125-P-A-KF 導(dǎo)向氣缸
170965 DFM-80-160-P-A-KF 導(dǎo)向氣缸
170966 DFM-80-200-P-A-KF 導(dǎo)向氣缸
170967 DFM-100-25-P-A-KF 導(dǎo)向氣缸
170968 DFM-100-50-P-A-KF 導(dǎo)向氣缸
170969 DFM-100-80-P-A-KF 導(dǎo)向氣缸
170970 DFM-100-100-P-A-KF 導(dǎo)向氣缸
170971 DFM-100-125-P-A-KF 導(dǎo)向氣缸
170972 DFM-100-160-P-A-KF 導(dǎo)向氣缸
170973 DFM-100-200-P-A-KF 導(dǎo)向氣缸
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