(1) Shinggan na hka pru ai lam hpe pat da nna, kata na hka lim ai lam hpe hkang na matu loi ai hte lang na matu shim lum ai.
Kata hte shinggan na hka lim ai lam gaw shim lum lam hpe hkrit tsang shangun ai ahkyak ai lam langai rai nga ai. Kaga automatic control valve ni gaw, n-gun, n-gun n-gun hte hka n-gun hpe n-gun dat ai hku nna, n-gun n-gun (sh) shamu shamawt ai lam hpe n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun hte hkang lu ai. Ndai lam ni yawng gaw, valve stem dynamic seal lwi pru wa ai manghkang hpe hparan na matu, galu kaba- aten hta galaw ra ai; electromagnetic n-gun gaw magri npawt nhpang ntsa kaw galaw nna, dai seal hpe magnetic insulation sleeve hta ngut kre ai, dynamic seal n lawm ai majaw, hka pru ai lam hpe pat da na matu loi ai. Wan jak valve hpe torque control galaw ai gaw n loi ai, kata na hka lim ai lam hpe byin shangun na matu loi ai, valve stem baw daw hpe pyi hkra machyi hkra galaw na matu loi ai; Ross solenoid valve a hkrang gaw zero du hkra kata na hka lim ai hpe hkang na matu loi ai. Dai majaw, solenoid valve ni hpe grau nna shim lum ai, grau nna, n-gun n rawng ai, n kaja ai (sh) n-gun n law ai (sh) n-gun n law ai media ni a matu.
(2) Lawan ai hku galaw ai lam, n-gun kaji hte nhtoi hkrang.
Amerikan mungdan hta Ross solenoid valve a mahtai jaw ai aten gaw, millisecond loi mi daram kadun ai zawn rai nna, pilot solenoid valve hpe millisecond law law hta pyi hkang lu ai. Shanglawt ai circuit a majaw, kaga automatic control valve ni hta grau nna hkam sha chye ai. Solenoid valve coil n-gun hpe jai lang ai lam hpe sawk sagawn ai lam gaw grai n law ai, n-gun atsam-} ni a matu rai nga ai; n-gun dat galaw ai lam hpe sha lu la mai ai, valve shara hpe shi nan gram lajang ya lu ai, law malawng gaw n-gun n jai lang ai. Solenoid valve hta n-gun kaji ai, shara hpe hkye la ai, n-gun n law ai hte tsawm htap ai.
(3) System gaw asan sha, lang na matu loi ai hte manu n hkrat ai.
