SEEHONG磁性開(kāi)關(guān)YIDA-73R YIDA-03R 32R 磁簧開(kāi)關(guān) 感應(yīng)開(kāi)關(guān)
減壓閥選擇依據(jù)及其注意事項(xiàng)
選擇減壓閥的主要依據(jù)是它們?cè)谙到y(tǒng)中的作用、額定壓力、最大流量、壓力損失數(shù)值、工作性能參數(shù)和使用壽命等。通常按照液壓系統(tǒng)的最大壓力和通過(guò)閥的流量,從産品樣本中選擇減壓閥的規(guī)格(壓力等級(jí)和通徑)。下面來(lái)看下其注意事項(xiàng)。
1)減壓閥的調(diào)定壓力根據(jù)其工作情況而決定,注意減壓閥不能控制輸出油液流量的大小,當(dāng)減壓后的流量需要控制時(shí),應(yīng)另設(shè)流量控制閥。減壓閥的流量規(guī)格應(yīng)由實(shí)際通過(guò)該閥的最大流量選取,在使用中不宜超過(guò)額定流量。
2)減壓閥的各項(xiàng)性能指標(biāo)對(duì)液壓系統(tǒng)都有影響,可根據(jù)系統(tǒng)的要求按樣本上的性能曲線選用減壓閥。
3)可根據(jù)系統(tǒng)性能要求選擇閥的結(jié)構(gòu)形式,如低壓系統(tǒng)可選用直動(dòng)型壓力閥,而中高壓系統(tǒng)應(yīng)選用先導(dǎo)型壓力閥。根據(jù)空間位策、管路布置等情況選用闆式、管式或登加式連接的減壓閥。
4)對(duì)于接入控制油路上的各類(lèi)壓力閥,由于通過(guò)的實(shí)際流量很小,因此可按該閥的最小額定流量規(guī)格選取,使液壓裝置結(jié)構(gòu)緊湊。
5)注意減壓閥的最低調(diào)節(jié)壓力,應(yīng)保證一次壓力與二次壓力之差爲(wèi)0.3一1MPa。
6)要注意先導(dǎo)式減壓閥的洩漏量比其他控制閥大的情況。這種閥的洩漏量可高達(dá)1L/min以上,而且隻要閥處于工作狀態(tài),洩漏始終存在。在選擇液壓泵容量時(shí),要充分考慮到這一點(diǎn)。
7)也要注意,不要使通過(guò)減壓閥、順序閥的流量遠(yuǎn)小于其額定流量,否則,易産生振動(dòng)或其他不穩(wěn)定現(xiàn)象。這時(shí),要在回路上采取必要的措施。
YIDA-21R YIDA-32RH YIDA-11N YIDA-07R-EG2R YIDA-66N-NC YIDA-66P-NC YIDA-01R YIDA-01RD YIDA-01N YIDA-01P YIDA-02R YIDA-02RD YIDA-02N YIDA-02P YIDA-03R YIDA-03RD YIDA-03N YIDA-03P YIDA-04R YIDA-04RD YIDA-04N YIDA-04P YIDA-05R YIDA-05RD YIDA-05N YIDA-05P YIDA-06R YIDA-06RD YIDA-06N YIDA-06P YIDA-07R YIDA-07RD YIDA-07N YIDA-07P YIDA-08R YIDA-08RD YIDA-08N YIDA-08P YIDA-09R YIDA-09RD YIDA-09N YIDA-09P YIDA-10R YIDA-10RD YIDA-10N YIDA-10P YIDA-11R YIDA-11RD YIDA-11P YIDA-12R YIDA-12RD YIDA-12N YIDA-12P YIDA-13R YIDA-13RD YIDA-13N YIDA-13P YIDA-14R YIDA-14N YIDA-14P YIDA-15R YIDA-15RD YIDA-15N YIDA-15P YIDA-16R YIDA-16RD YIDA-16N YIDA-16P YIDA-17R YIDA-17RD YIDA-17N YIDA-17P YIDA-18R YIDA-18RD YIDA-18N YIDA-18P YIDA-19R YIDA-19RD YIDA-19N YIDA-19P YIDA-20R YIDA-20RD YIDA-20N YIDA-20P YIDA-21RD YIDA-21N YIDA-21P YIDA-22R YIDA-22RD YIDA-22N YIDA-22P YIDA-23R YIDA-23RD YIDA-23N YIDA-23P YIDA-24R YIDA-24RD YIDA-24N YIDA-24P YIDA-25R YIDA-25RD YIDA-25N YIDA-25P YIDA-26R YIDA-26RD YIDA-26N YIDA-26P YIDA-27R YIDA-27RD YIDA-27N YIDA-27P YIDA-28R YIDA-28RD YIDA-28N YIDA-28P YIDA-29R YIDA-29RD YIDA-29N YIDA-29P YIDA-30R YIDA-30RD YIDA-30N YIDA-30P YIDA-31R YIDA-31RD YIDA-31N YIDA-31P YIDA-32R YIDA-32RD YIDA-32N YIDA-32P YIDA-33R YIDA-33RD YIDA-33N YIDA-33P YIDA-34R YIDA-34RD YIDA-34N YIDA-34P YIDA-35R YIDA-35RD YIDA-35N YIDA-35P YIDA-36R YIDA-36RD YIDA-36N YIDA-36P YIDA-37R YIDA-37RD YIDA-37N YIDA-37P YIDA-38R YIDA-38RD YIDA-38N YIDA-38P YIDA-39R YIDA-39RD YIDA-39N YIDA-39P YIDA-40R YIDA-40RV YIDA-40RD YIDA-40N YIDA-40P YIDA-41R YIDA-41RV YIDA-41RD YIDA-41N YIDA-41P YIDA-42R YIDA-42RV YIDA-42RD YIDA-42N YIDA-42P YIDA-43R YIDA-43RV YIDA-43RD YIDA-43N YIDA-43P YIDA-44R YIDA-44RV YIDA-44RD YIDA-44N YIDA-44P YIDA-50R YIDA-50RV YIDA-50RD YIDA-50N YIDA-50P YIDA-51R YIDA-51RV YIDA-51RD YIDA-51N YIDA-51P YIDA-70R YIDA-70RV YIDA-70RD YIDA-70N YIDA-70P YIDA-71R YIDA-71RV YIDA-71RD YIDA-71N YIDA-71P YIDA-72R YIDA-72RD YIDA-72N YIDA-72P
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