TV/SC-A是一(yi)種蒸(zheng)(zheng)汽(qi)(qi)(qi)控(kong)(kong)制(zhi)閥(fa),設(she)計用(yong)于(yu)根據環(huan)境溫(wen)度(du)(du)(du)變(bian)化自動(dong)調(diao)節(jie)流量,以(yi)保護設(she)施管(guan)道和外殼(ke)免受凍結。TV/SC-A(管(guan)閥(fa)/蒸(zheng)(zheng)汽(qi)(qi)(qi)控(kong)(kong)制(zhi)環(huan)境傳感)是一(yi)種蒸(zheng)(zheng)汽(qi)(qi)(qi)伴(ban)熱(re)控(kong)(kong)制(zhi)閥(fa),可(ke)用(yong)于(yu)開(kai)(kai)啟與Teflon和不銹鋼兼(jian)容的蒸(zheng)(zheng)汽(qi)(qi)(qi)、空氣、氣體(ti)或(huo)液體(ti),以(yi)應(ying)對環(huan)境溫(wen)度(du)(du)(du)變(bian)化,從(cong)而保護管(guan)道和儀表免受凍結損壞(huai)。位于(yu)TV/SC-A一(yi)端(與閥(fa)體(ti)隔熱(re))的恒溫(wen)執行器(qi)將(jiang)(jiang)(jiang)在10°F(5.6°C)的溫(wen)差(例如(ru)35°-45°F)內自動(dong)打開(kai)(kai)或(huo)關(guan)閉,以(yi)提(ti)供(gong)良好的流體(ti)溫(wen)度(du)(du)(du)。蒸(zheng)(zheng)汽(qi)(qi)(qi)伴(ban)熱(re)控(kong)(kong)制(zhi)閥(fa)通常關(guan)閉,當(dang)環(huan)境溫(wen)度(du)(du)(du)降至(zhi)閥(fa)門設(she)定(ding)值以(yi)下時(shi),將(jiang)(jiang)(jiang)開(kai)(kai)始打開(kai)(kai)以(yi)注入蒸(zheng)(zheng)汽(qi)(qi)(qi)或(huo)其他流體(ti)。一(yi)旦(dan)空氣溫(wen)度(du)(du)(du)回升至(zhi)閥(fa)門設(she)定(ding)值以(yi)上,閥(fa)門將(jiang)(jiang)(jiang)再次(ci)關(guan)閉,從(cong)而節(jie)省數(shu)千(qian)美元的運營成(cheng)本。
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