壓力機送油閥手動調節適用于各種(zhong)壓(ya)(ya)力機(ji)、萬能(neng)機(ji)操作的電動(dong)液(ye)壓(ya)(ya)加荷。符合國家標(biao)準(zhun)《普通混凝(ning)土力學(xue)性能(neng)實驗(yan)方法標(biao)準(zhun)》，應(ying)手動(dong)控制(zhi)加載速(su)度(du)，并(bing)具有加荷速(su)度(du)指示裝置、峰值保持、過載保護功能(neng)，是建(jian)筑、建(jian)材、公路橋梁(liang)等工程(cheng)單位(wei)*的試驗(yan)檢測設備。

壓力機送油閥手動調節是一(yi)個(ge)分路(lu)式流(liu)量調(diao)(diao)節(jie)閥(fa)(fa)(fa)(fa)，它由(you)一(yi)個(ge)變節(jie)流(liu)器和一(yi)個(ge)定差(cha)減(jian)壓閥(fa)(fa)(fa)(fa)并聯組成。進油(you)(you)(you)(you)(you)(you)口接通(tong)油(you)(you)(you)(you)(you)(you)泵，當(dang)(dang)旋轉手柄(bing)（1）時(shi)(shi)，帶動(dong)送(song)(song)油(you)(you)(you)(you)(you)(you)閥(fa)(fa)(fa)(fa)芯(xin)（2），可使(shi)閥(fa)(fa)(fa)(fa)門有節(jie)奏地打開(kai)(kai)，此時(shi)(shi)油(you)(you)(you)(you)(you)(you)泵所(suo)(suo)供(gong)(gong)之(zhi)壓力油(you)(you)(you)(you)(you)(you)通(tong)過閥(fa)(fa)(fa)(fa)門經(jing)過油(you)(you)(you)(you)(you)(you)管(guan)送(song)(song)至(zhi)回(hui)(hui)油(you)(you)(you)(you)(you)(you)閥(fa)(fa)(fa)(fa)，流(liu)量大小可以調(diao)(diao)節(jie)。當(dang)(dang)送(song)(song)油(you)(you)(you)(you)(you)(you)閥(fa)(fa)(fa)(fa)右移(yi)時(shi)(shi)油(you)(you)(you)(you)(you)(you)門小，甚(shen)至(zhi)*關閉回(hui)(hui)油(you)(you)(you)(you)(you)(you)閥(fa)(fa)(fa)(fa)時(shi)(shi)則(ze)油(you)(you)(you)(you)(you)(you)泵所(suo)(suo)供(gong)(gong)之(zhi)油(you)(you)(you)(you)(you)(you)在送(song)(song)油(you)(you)(you)(you)(you)(you)閥(fa)(fa)(fa)(fa)腔內(nei)推動(dong)，減(jian)壓閥(fa)(fa)(fa)(fa)的閥(fa)(fa)(fa)(fa)芯(xin)套(tao)（7）及閥(fa)(fa)(fa)(fa)芯(xin)桿（9）后(hou)移(yi)，當(dang)(dang)移(yi)到回(hui)(hui)油(you)(you)(you)(you)(you)(you)管(guan)位(wei)置(zhi)時(shi)(shi)，則(ze)油(you)(you)(you)(you)(you)(you)泵所(suo)(suo)供(gong)(gong)之(zhi)油(you)(you)(you)(you)(you)(you)與三(san)通(tong)閥(fa)(fa)(fa)(fa)接通(tong)，壓力油(you)(you)(you)(you)(you)(you)即經(jing)回(hui)(hui)油(you)(you)(you)(you)(you)(you)管(guan)路(lu)，只有當(dang)(dang)閥(fa)(fa)(fa)(fa)芯(xin)右端的油(you)(you)(you)(you)(you)(you)壓超過一(yi)定限度(du)時(shi)(shi)才能打開(kai)(kai)回(hui)(hui)路(lu)。