快速報價系列TOGNELLA流量控制閥FT 2221/1工作方式

快速報價系列TOGNELLA流量控制閥FT 2221/1工作方式
快速報價系列TOGNELLA流量控制閥FT 2221/1工作方式
YTP-1/15SF法蘭連接同上YTP-6螺紋連接用于測量強(qiáng)腐蝕性介質(zhì)的壓力。如：，鹽酸，硝酸等。內(nèi)部填充工作液硅油根據(jù)客戶需求填充結(jié)構(gòu)原理隔膜壓力表適用于測量強(qiáng)腐蝕、高溫、高粘度、易結(jié)晶、易凝固、有固體浮游物的介質(zhì)壓力以及必須避免測量介質(zhì)直接進(jìn)入通用型壓力儀表和防止沉淀物積聚且易清洗的場合。下面紅旗儀表就隔膜壓力表的發(fā)展歷史、發(fā)展趨勢、及實(shí)際應(yīng)用等方面來做介紹。當(dāng)測量介質(zhì)的壓力P作用于隔膜，則隔膜產(chǎn)生變形［2］，壓縮壓力儀表測壓系統(tǒng)的密封液，使其形成P-P的壓力。

EI(electronics-inc) 100 MagnaValve 流量閥
EI(electronics-inc) 500-24 MagnaValve 流量閥
EI(electronics-inc) 500-P MagnaValve 流量閥
EI(electronics-inc) 590-24 MagnaValve 流量閥
EI(electronics-inc) LP-24 MagnaValve 流量閥
EI(electronics-inc) LP-24HT MagnaValve 流量閥
EI(electronics-inc) LP2000 MagnaValve 流量閥
EI(electronics-inc) LP2000VAR MagnaValve 流量閥
EI(electronics-inc) VLP-24 MagnaValve 流量閥
EI(electronics-inc) VLP-24HT MagnaValve 流量閥
EI(electronics-inc) VLP1000 MagnaValve 流量閥
EI(electronics-inc) VLP1000VAR MagnaValve 流量閥
EI(electronics-inc) WM 3000-24 MagnaValve 流量閥
EI(electronics-inc) 578 MagnaValve 流量閥
EI(electronics-inc) 579 MagnaValve 流量閥
EI(electronics-inc) 580 MagnaValve 流量閥
EI(electronics-inc) 590 MagnaValve 流量閥
EI(electronics-inc) 576-24 流量閥
EI(electronics-inc) 577-24 流量閥
EI(electronics-inc) 578-24 流量閥
EI(electronics-inc) 579-24 MagnaValve 流量閥
EI(electronics-inc) 580-24 MagnaValve 流量閥
EI(electronics-inc) 590-24 MagnaValve 流量閥
EI(electronics-inc) 700-24 MagnaValve 流量閥
EI(electronics-inc) 178-DC MagnaValve 流量閥
EI(electronics-inc) 179-AC MagnaValve 流量閥
EI(electronics-inc) 179-DC MagnaValve 流量閥
EI(electronics-inc) 180-AC MagnaValve 流量閥
EI(electronics-inc) 180-DC MagnaValve 流量閥
EI(electronics-inc) 190-AC MagnaValve 流量閥
EI(electronics-inc) 190-DC MagnaValve 流量閥
EI(electronics-inc) AC Controller MagnaValve 流量閥
EI(electronics-inc) AC-24 MagnaValve 流量閥
EI(electronics-inc) FC MagnaValve 流量閥
EI(electronics-inc) FC-24 MagnaValve 流量閥
EI(electronics-inc) MC MagnaValve 流量閥
EI(electronics-inc) POT-24 MagnaValve 流量閥
EI(electronics-inc) VARIAC MagnaValve 流量閥
EI(electronics-inc) electronics-inc 70-24 流量閥
EI(electronics-inc) electronics-inc MFD-P1 流量閥
EI(electronics-inc) electronics-inc MFD-4 流量閥
EI(electronics-inc) electronics-inc MFD-250 流量閥

為了克服這些缺點(diǎn)，可采用先導(dǎo)式減壓閥。先導(dǎo)式減壓閥的工作原理與直動式的基本相同。先導(dǎo)式減壓閥所用的調(diào)壓氣體，是由小型的直動式減壓閥供給的。若把小型直動式減壓閥在閥體內(nèi)部，則稱為內(nèi)部先導(dǎo)式減壓閥；若將小型直動式減壓閥在主閥體外部，則稱為外部先導(dǎo)式減壓閥。圖2所示為內(nèi)部先導(dǎo)式減壓閥的結(jié)構(gòu)圖，與直動式減壓閥相比，該閥增加了由噴嘴擋板固定節(jié)流孔9及氣室B所組成的噴嘴擋板放大環(huán)節(jié)。當(dāng)噴嘴與擋板之間的距離發(fā)生微小變化時，就會使B室中的壓力發(fā)生根明顯的變化，從而引起膜片1有較大的位移，去控制閥芯6的上下移動，使進(jìn)氣閥口8開大或關(guān)小、提高了對閥芯控制的靈敏度，即提高了穩(wěn)壓精度。